libidav/crypto.c

Sun, 15 Dec 2019 18:08:14 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 15 Dec 2019 18:08:14 +0100
changeset 707
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parent 692
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child 728
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permissions
-rw-r--r--

change version to 1.3.0

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2018 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <string.h>
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32 #include <unistd.h>
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33 #include <fcntl.h>
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34 #include "utils.h"
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35
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36 #include "crypto.h"
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37
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38 /* -------------------- OpenSSL Crypto Functions -------------------- */
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39 #ifdef DAV_USE_OPENSSL
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40
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41 #if OPENSSL_VERSION_NUMBER < 0x10000000L
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42
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43 static EVP_CIPHER_CTX* create_evp_cipher_ctx() {
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44 EVP_CIPHER_CTX *ctx = malloc(sizeof(EVP_CIPHER_CTX));
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45 EVP_CIPHER_CTX_init(ctx);
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46 return ctx;
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47 }
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48
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49 static void free_evp_cipher_ctx(EVP_CIPHER_CTX *ctx) {
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50 EVP_CIPHER_CTX_cleanup(ctx);
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51 free(ctx);
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52 }
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53
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54 #define EVP_CIPHER_CTX_new() create_evp_cipher_ctx()
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55 #define EVP_CIPHER_CTX_free(ctx) free_evp_cipher_ctx(ctx)
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56
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57 #endif
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58
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59 int dav_rand_bytes(unsigned char *buf, size_t len) {
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60 return !RAND_bytes(buf, len);
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61 }
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62
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63 AESDecrypter* aes_decrypter_new(DavKey *key, void *stream, dav_write_func write_func) {
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64 AESDecrypter *dec = calloc(1, sizeof(AESDecrypter));
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65 SHA256_Init(&dec->sha256);
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66 dec->stream = stream;
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67 dec->write = write_func;
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68 dec->key = key;
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69 dec->init = 0;
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70 dec->ivpos = 0;
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71
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72 return dec;
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73 }
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74
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75 void aes_decrypter_init(AESDecrypter *dec) {
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76 //EVP_CIPHER_CTX_init(&dec->ctx);
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77 dec->ctx = EVP_CIPHER_CTX_new();
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78 dec->init = 1;
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79 if(dec->key->type == DAV_KEY_AES128) {
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80 EVP_DecryptInit_ex(
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81 dec->ctx,
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82 EVP_aes_128_cbc(),
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83 NULL,
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84 dec->key->data,
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85 dec->ivtmp);
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86 } else if(dec->key->type == DAV_KEY_AES256) {
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87 EVP_DecryptInit_ex(
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88 dec->ctx,
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89 EVP_aes_256_cbc(),
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90 NULL,
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91 dec->key->data,
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92 dec->ivtmp);
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93 } else {
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94 fprintf(stderr, "unknown key type\n");
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95 exit(-1);
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96 }
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97 }
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98
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99 size_t aes_write(const void *buf, size_t s, size_t n, AESDecrypter *dec) {
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100 int len = s*n;
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101 if(!dec->init) {
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102 size_t n = 16 - dec->ivpos;
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103 size_t cp = n > len ? len : n;
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104 memcpy(dec->ivtmp + dec->ivpos, buf, cp);
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105 dec->ivpos += cp;
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106 if(dec->ivpos >= 16) {
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107 aes_decrypter_init(dec);
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108 }
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109 if(len == cp) {
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110 return len;
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111 } else {
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112 buf = (char*)buf + cp;
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113 len -= cp;
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114 }
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115 }
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116
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117 int outlen = len + 16;
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118 unsigned char *out = malloc(outlen);
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119 EVP_DecryptUpdate(dec->ctx, out, &outlen, buf, len);
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120 ssize_t wlen = dec->write(out, 1, outlen, dec->stream);
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121 SHA256_Update(&dec->sha256, out, wlen);
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122 free(out);
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123 return (s*n) / s;
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124 }
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125
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126 void aes_decrypter_shutdown(AESDecrypter *dec) {
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127 if(dec->init) {
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128 void *out = malloc(128);
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129 int len = 0;
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130 EVP_DecryptFinal_ex(dec->ctx, out, &len);
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131 dec->write(out, 1, len, dec->stream);
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132 SHA256_Update(&dec->sha256, out, len);
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133 free(out);
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134 //EVP_CIPHER_CTX_cleanup(&dec->ctx);
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135 EVP_CIPHER_CTX_free(dec->ctx);
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136 }
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137 }
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138
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139 void aes_decrypter_close(AESDecrypter *dec) {
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140 free(dec);
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141 }
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142
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143
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144 AESEncrypter* aes_encrypter_new(DavKey *key, void *stream, dav_read_func read_func, dav_seek_func seek_func) {
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145 unsigned char *iv = malloc(16);
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146 if(!RAND_bytes(iv, 16)) {
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147 free(iv);
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148 return NULL;
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149 }
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150
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151 AESEncrypter *enc = malloc(sizeof(AESEncrypter));
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152 SHA256_Init(&enc->sha256);
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153 enc->stream = stream;
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154 enc->read = read_func;
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155 enc->seek = seek_func;
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156 enc->tmp = NULL;
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157 enc->tmplen = 0;
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158 enc->tmpoff = 0;
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159 enc->end = 0;
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160 enc->iv = iv;
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161 enc->ivlen = 16;
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162
260
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163 //EVP_CIPHER_CTX_init(&enc->ctx);
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164 enc->ctx = EVP_CIPHER_CTX_new();
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165 if(key->type == DAV_KEY_AES128) {
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166 EVP_EncryptInit_ex(enc->ctx, EVP_aes_128_cbc(), NULL, key->data, enc->iv);
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167 } else if(key->type == DAV_KEY_AES256) {
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168 EVP_EncryptInit_ex(enc->ctx, EVP_aes_256_cbc(), NULL, key->data, enc->iv);
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169 } else {
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170 fprintf(stderr, "unknown key type\n");
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171 exit(-1);
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172 }
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173 return enc;
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174 }
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175
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176 size_t aes_read(void *buf, size_t s, size_t n, AESEncrypter *enc) {
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177 size_t len = s*n;
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178 if(enc->tmp) {
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179 size_t tmp_diff = enc->tmplen - enc->tmpoff;
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180 size_t cp_len = tmp_diff > len ? len : tmp_diff;
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181 memcpy(buf, enc->tmp + enc->tmpoff, cp_len);
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182 enc->tmpoff += cp_len;
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183 if(enc->tmpoff >= enc->tmplen) {
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184 free(enc->tmp);
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185 enc->tmp = NULL;
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186 enc->tmplen = 0;
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187 enc->tmpoff = 0;
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188 }
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189 return cp_len / s;
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190 }
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191
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192 if(enc->end) {
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193 return 0;
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194 }
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195
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196 void *in = malloc(len);
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197 size_t in_len = enc->read(in, 1, len, enc->stream);
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198
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199 SHA256_Update(&enc->sha256, in, in_len);
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200
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201 unsigned char *out = NULL;
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202 int outlen = 0;
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203 size_t ivl = enc->ivlen;
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204 if(in_len != 0) {
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205 outlen = len + 32;
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206 out = malloc(outlen + ivl);
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207 if(ivl > 0) {
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208 memcpy(out, enc->iv, ivl);
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209 }
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210 EVP_EncryptUpdate(enc->ctx, out + ivl, &outlen, in, in_len);
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211 if(in_len != len) {
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212 int newoutlen = 16;
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213 EVP_EncryptFinal_ex(enc->ctx, out + ivl + outlen, &newoutlen);
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214 outlen += newoutlen;
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215 enc->end = 1;
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216 }
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217 } else {
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218 out = malloc(16);
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219 EVP_EncryptFinal_ex(enc->ctx, out, &outlen);
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220 enc->end = 1;
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221 }
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222 enc->tmp = (char*)out;
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223 enc->tmplen = outlen + ivl;
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224 enc->tmpoff = 0;
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225
478
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226 if(enc->ivlen > 0) {
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227 enc->ivlen = 0;
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228 }
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229
459
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230 free(in);
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231
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232 return aes_read(buf, s, n, enc);
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233 }
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234
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235 void aes_encrypter_close(AESEncrypter *enc) {
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236 if(enc->tmp) {
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237 free(enc->tmp);
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238 }
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239 if(enc->iv) {
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240 free(enc->iv);
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241 }
260
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242 //EVP_CIPHER_CTX_cleanup(&enc->ctx);
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243 EVP_CIPHER_CTX_free(enc->ctx);
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244 free(enc);
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245 }
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246
478
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247 int aes_encrypter_reset(AESEncrypter *enc, curl_off_t offset, int origin) {
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248 if(origin != SEEK_SET || offset != 0 || !enc->seek) {
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249 return CURL_SEEKFUNC_CANTSEEK;
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250 }
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251
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252 enc->ivlen = 16;
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253 if(enc->seek(enc->stream, 0, SEEK_SET) != 0) {
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254 return CURL_SEEKFUNC_FAIL;
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255 }
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256 return CURL_SEEKFUNC_OK;
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257 }
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258
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259
505
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260 char* aes_encrypt(const char *in, size_t len, DavKey *key) {
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261 unsigned char iv[16];
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262 if(!RAND_bytes(iv, 16)) {
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263 return NULL;
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264 }
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265
260
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266 //EVP_CIPHER_CTX ctx;
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267 //EVP_CIPHER_CTX_init(&ctx);
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268 EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
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269 if(key->type == DAV_KEY_AES128) {
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270 EVP_EncryptInit_ex(
260
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271 ctx,
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272 EVP_aes_128_cbc(),
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273 NULL,
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274 (unsigned char*)key->data,
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275 iv);
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276 } else if(key->type == DAV_KEY_AES256) {
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277 EVP_EncryptInit_ex(
260
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278 ctx,
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279 EVP_aes_256_cbc(),
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280 NULL,
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281 (unsigned char*)key->data,
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282 iv);
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283 } else {
260
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284 //EVP_CIPHER_CTX_cleanup(&ctx);
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285 EVP_CIPHER_CTX_free(ctx);
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286 return NULL;
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287 }
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288
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289 //int len = strlen(in);
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290 int buflen = len + 64;
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291 unsigned char *buf = calloc(1, buflen);
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292 memcpy(buf, iv, 16);
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293
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294 int l = buflen - 16;
260
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295 EVP_EncryptUpdate(ctx, buf + 16, &l, (unsigned char*)in, len);
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296
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297 int f = 0;
260
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298 EVP_EncryptFinal_ex(ctx, buf + 16 + l, &f);
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299 char *out = util_base64encode((char*)buf, 16 + l + f);
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300 free(buf);
260
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301 EVP_CIPHER_CTX_free(ctx);
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302 //EVP_CIPHER_CTX_cleanup(&ctx);
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303
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304 return out;
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305 }
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306
505
481802342fdf ucx update
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diff changeset
307 char* aes_decrypt(const char *in, size_t *length, DavKey *key) {
40
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308 int len;
43
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diff changeset
309 unsigned char *buf = (unsigned char*)util_base64decode_len(in, &len);
40
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310
260
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diff changeset
311 //EVP_CIPHER_CTX ctx;
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312 //EVP_CIPHER_CTX_init(&ctx);
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313 EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
40
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314 if(key->type == DAV_KEY_AES128) {
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315 EVP_DecryptInit_ex(
260
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diff changeset
316 ctx,
40
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317 EVP_aes_128_cbc(),
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318 NULL,
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319 key->data,
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320 buf);
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321 } else if(key->type == DAV_KEY_AES256) {
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322 EVP_DecryptInit_ex(
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323 ctx,
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324 EVP_aes_256_cbc(),
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325 NULL,
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326 key->data,
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327 buf);
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328 } else {
260
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329 //EVP_CIPHER_CTX_cleanup(&ctx);
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330 EVP_CIPHER_CTX_free(ctx);
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331 return NULL;
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332 }
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333
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diff changeset
334 unsigned char *out = malloc(len + 1);
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335 int outlen = len;
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336 unsigned char *in_buf = buf + 16;
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337 int inlen = len - 16;
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338 int f = 0;
40
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339
260
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340 EVP_DecryptUpdate(ctx, out, &outlen, in_buf, inlen);
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341 EVP_DecryptFinal_ex(ctx, out + outlen, &f);
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342 out[outlen + f] = '\0';
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343 free(buf);
260
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344 //EVP_CIPHER_CTX_cleanup(&ctx);
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345 EVP_CIPHER_CTX_free(ctx);
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346
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347 *length = outlen + f;
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348 return (char*)out;
40
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349 }
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350
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351
354
067ea2315a8a moves auth prompt functionality to libidav
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diff changeset
352 void dav_get_hash(DAV_SHA_CTX *sha256, unsigned char *buf){
155
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parents: 150
diff changeset
353 SHA256_Final((unsigned char*)buf, sha256);
150
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354 }
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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diff changeset
355
367
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diff changeset
356 char* dav_create_hash(const char *data, size_t len) {
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diff changeset
357 unsigned char hash[DAV_SHA256_DIGEST_LENGTH];
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358 DAV_SHA_CTX ctx;
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359 SHA256_Init(&ctx);
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360 SHA256_Update(&ctx, data, len);
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361 SHA256_Final(hash, &ctx);
367
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362 return util_hexstr(hash, DAV_SHA256_DIGEST_LENGTH);
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363 }
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diff changeset
364
520
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parents: 515
diff changeset
365 DAV_SHA_CTX* dav_hash_init(void) {
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diff changeset
366 DAV_SHA_CTX *ctx = malloc(sizeof(DAV_SHA_CTX));
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367 SHA256_Init(ctx);
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368 return ctx;
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369 }
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370
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diff changeset
371 void dav_hash_update(DAV_SHA_CTX *ctx, const char *data, size_t len) {
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372 SHA256_Update(ctx, data, len);
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373 }
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374
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375 void dav_hash_final(DAV_SHA_CTX *ctx, unsigned char *buf) {
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diff changeset
376 SHA256_Final(buf, ctx);
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diff changeset
377 free(ctx);
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378 }
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diff changeset
379
624
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diff changeset
380 #if OPENSSL_VERSION_NUMBER < 0x10100000L
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381 static int crypto_pw2key_error = 0;
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382 DavKey* dav_pw2key(const char *password, const unsigned char *salt, int saltlen, int pwfunc, int enc) {
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383 if(!crypto_pw2key_error) {
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diff changeset
384 fprintf(stderr, "Error: password key derivation not supported on this platform: openssl to old\n");
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385 crypto_pw2key_error = 1;
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386 }
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387 return 0;
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diff changeset
388 }
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diff changeset
389
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diff changeset
390 #else
515
2465dd550bb5 fixes signedness of salt in dav_pw2key()
Mike Becker <universe@uap-core.de>
parents: 506
diff changeset
391 DavKey* dav_pw2key(const char *password, const unsigned char *salt, int saltlen, int pwfunc, int enc) {
470
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parents: 462
diff changeset
392 if(!password) {
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diff changeset
393 return NULL;
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diff changeset
394 }
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diff changeset
395 size_t len = strlen(password);
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parents: 462
diff changeset
396 if(len == 0) {
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diff changeset
397 return NULL;
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parents: 462
diff changeset
398 }
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diff changeset
399
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diff changeset
400 // setup key data and length
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diff changeset
401 unsigned char keydata[32];
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diff changeset
402 int keylen = 32;
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parents: 462
diff changeset
403 switch(enc) {
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parents: 462
diff changeset
404 case DAV_KEY_AES128: keylen = 16; break;
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parents: 462
diff changeset
405 case DAV_KEY_AES256: keylen = 32; break;
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parents: 462
diff changeset
406 default: return NULL;
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parents: 462
diff changeset
407 }
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parents: 462
diff changeset
408
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parents: 462
diff changeset
409 // generate key
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parents: 462
diff changeset
410 switch(pwfunc) {
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parents: 462
diff changeset
411 case DAV_PWFUNC_PBKDF2_SHA256: {
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parents: 462
diff changeset
412 PKCS5_PBKDF2_HMAC(
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parents: 462
diff changeset
413 password,
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parents: 462
diff changeset
414 len,
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parents: 462
diff changeset
415 salt,
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parents: 462
diff changeset
416 saltlen,
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parents: 462
diff changeset
417 DAV_CRYPTO_ITERATION_COUNT,
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parents: 462
diff changeset
418 EVP_sha256(),
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parents: 462
diff changeset
419 keylen,
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parents: 462
diff changeset
420 keydata);
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parents: 462
diff changeset
421 break;
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parents: 462
diff changeset
422 }
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parents: 462
diff changeset
423 case DAV_PWFUNC_PBKDF2_SHA512: {
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parents: 462
diff changeset
424 PKCS5_PBKDF2_HMAC(
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parents: 462
diff changeset
425 password,
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parents: 462
diff changeset
426 len,
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parents: 462
diff changeset
427 salt,
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parents: 462
diff changeset
428 saltlen,
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parents: 462
diff changeset
429 DAV_CRYPTO_ITERATION_COUNT,
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parents: 462
diff changeset
430 EVP_sha512(),
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parents: 462
diff changeset
431 keylen,
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parents: 462
diff changeset
432 keydata);
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parents: 462
diff changeset
433 break;
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parents: 462
diff changeset
434 }
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parents: 462
diff changeset
435 default: return NULL;
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parents: 462
diff changeset
436 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
437
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parents: 462
diff changeset
438 // create DavKey with generated data
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parents: 462
diff changeset
439 DavKey *key = malloc(sizeof(DavKey));
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parents: 462
diff changeset
440 key->data = malloc(keylen);
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parents: 462
diff changeset
441 key->length = keylen;
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parents: 462
diff changeset
442 key->name = NULL;
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parents: 462
diff changeset
443 key->type = enc;
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parents: 462
diff changeset
444 memcpy(key->data, keydata, keylen);
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parents: 462
diff changeset
445 return key;
6bf798ad3aec adds encrypted password store
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parents: 462
diff changeset
446 }
624
27985062cd2c fix build on Solaris 10
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 520
diff changeset
447 #endif
470
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
448
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
449 #endif
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
450
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
451
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
452 /* -------------------- Apple Crypto Functions -------------------- */
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
453 #ifdef DAV_CRYPTO_COMMON_CRYPTO
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
454
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
455 #define RANDOM_BUFFER_LENGTH 256
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
456 static char randbuf[RANDOM_BUFFER_LENGTH];
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
457 static int rbufpos = RANDOM_BUFFER_LENGTH;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
458
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
459 int dav_rand_bytes(unsigned char *buf, size_t len) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
460 if(len + rbufpos > RANDOM_BUFFER_LENGTH) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
461 int devr = open("/dev/urandom", O_RDONLY);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
462 if(devr == -1) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
463 return 1;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
464 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
465
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
466 if(read(devr, randbuf, RANDOM_BUFFER_LENGTH) < RANDOM_BUFFER_LENGTH) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
467 close(devr);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
468 return 1;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
469 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
470
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
471 rbufpos = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
472 if(len > RANDOM_BUFFER_LENGTH) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
473 int err = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
474 if(read(devr, buf, len) < len) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
475 err = 1;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
476 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
477 close(devr);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
478 return err;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
479 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
480
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
481 close(devr);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
482 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
483
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
484 char *r = randbuf;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
485 memcpy(buf, r + rbufpos, len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
486 rbufpos += len;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
487
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
488 return 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
489 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
490
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
491 AESDecrypter* aes_decrypter_new(DavKey *key, void *stream, dav_write_func write_func) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
492 AESDecrypter *dec = calloc(1, sizeof(AESDecrypter));
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
493 CC_SHA256_Init(&dec->sha256);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
494 dec->stream = stream;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
495 dec->write = write_func;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
496 dec->key = key;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
497 dec->init = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
498 dec->ivpos = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
499
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
500 return dec;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
501 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
502
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
503
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
504 void aes_decrypter_init(AESDecrypter *dec) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
505 //EVP_CIPHER_CTX_init(&dec->ctx);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
506 dec->init = 1;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
507
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
508 CCCryptorRef cryptor;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
509 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
510 if(dec->key->type == DAV_KEY_AES128) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
511 status = CCCryptorCreate(kCCDecrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding, dec->key->data, dec->key->length, dec->ivtmp, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
512 } else if(dec->key->type == DAV_KEY_AES256) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
513 status = CCCryptorCreate(kCCDecrypt, kCCAlgorithmAES, kCCOptionPKCS7Padding, dec->key->data, dec->key->length, dec->ivtmp, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
514 } else {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
515 fprintf(stderr, "unknown key type\n");
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
516 exit(-1);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
517 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
518 dec->ctx = cryptor;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
519 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
520
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
521 size_t aes_write(const void *buf, size_t s, size_t n, AESDecrypter *dec) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
522 int len = s*n;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
523 if(!dec->init) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
524 size_t n = 16 - dec->ivpos;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
525 size_t cp = n > len ? len : n;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
526 memcpy(dec->ivtmp + dec->ivpos, buf, cp);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
527 dec->ivpos += cp;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
528 if(dec->ivpos >= 16) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
529 aes_decrypter_init(dec);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
530 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
531 if(len == cp) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
532 return len;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
533 } else {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
534 buf = (char*)buf + cp;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
535 len -= cp;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
536 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
537 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
538
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
539 int outlen = len + 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
540 unsigned char *out = malloc(outlen);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
541
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
542 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
543 size_t avail = outlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
544 size_t moved = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
545 status = CCCryptorUpdate(dec->ctx, buf, len, out, avail, &moved);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
546
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
547 ssize_t wlen = dec->write(out, 1, moved, dec->stream);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
548 CC_SHA256_Update(&dec->sha256, out, wlen);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
549 free(out);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
550 return (s*n) / s;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
551 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
552
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
553 void aes_decrypter_shutdown(AESDecrypter *dec) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
554 if(dec->init) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
555 void *out = malloc(128);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
556 size_t len = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
557 //EVP_DecryptFinal_ex(dec->ctx, out, &len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
558 CCCryptorFinal(dec->ctx, out, 128, &len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
559
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
560
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
561 dec->write(out, 1, len, dec->stream);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
562 CC_SHA256_Update(&dec->sha256, out, len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
563 free(out);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
564 //EVP_CIPHER_CTX_cleanup(&dec->ctx);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
565 //EVP_CIPHER_CTX_free(dec->ctx);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
566 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
567 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
568
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
569 void aes_decrypter_close(AESDecrypter *dec) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
570
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
571 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
572
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
573 AESEncrypter* aes_encrypter_new(DavKey *key, void *stream, dav_read_func read_func, dav_seek_func seek_func) {
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
574 unsigned char *iv = malloc(16);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
575 if(dav_rand_bytes(iv, 16)) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
576 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
577 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
578
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
579 CCCryptorRef cryptor;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
580 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
581 if(key->type == DAV_KEY_AES128) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
582 status = CCCryptorCreate(kCCEncrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding, key->data, key->length, iv, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
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parents: 267
diff changeset
583 } else if(key->type == DAV_KEY_AES256) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
584 status = CCCryptorCreate(kCCEncrypt, kCCAlgorithmAES, kCCOptionPKCS7Padding, key->data, key->length, iv, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
585 } else {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
586 free(iv);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
587 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
588 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
589
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
590 AESEncrypter *enc = malloc(sizeof(AESEncrypter));
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
591 enc->ctx = cryptor;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
592 CC_SHA256_Init(&enc->sha256);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
593 enc->stream = stream;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
594 enc->read = read_func;
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
595 enc->seek = seek_func;
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
596 enc->tmp = NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
597 enc->tmplen = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
598 enc->tmpoff = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
599 enc->end = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
600 enc->iv = iv;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
601 enc->ivlen = 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
602
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
603 return enc;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
604 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
605
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
606 size_t aes_read(void *buf, size_t s, size_t n, AESEncrypter *enc) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
607 size_t len = s*n;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
608 if(enc->tmp) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
609 size_t tmp_diff = enc->tmplen - enc->tmpoff;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
610 size_t cp_len = tmp_diff > len ? len : tmp_diff;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
611 memcpy(buf, enc->tmp + enc->tmpoff, cp_len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
612 enc->tmpoff += cp_len;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
613 if(enc->tmpoff >= enc->tmplen) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
614 free(enc->tmp);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
615 enc->tmp = NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
616 enc->tmplen = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
617 enc->tmpoff = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
618 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
619 return cp_len / s;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
620 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
621
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
622 if(enc->end) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
623 return 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
624 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
625
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
626 void *in = malloc(len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
627 size_t in_len = enc->read(in, 1, len, enc->stream);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
628
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
629 CC_SHA256_Update(&enc->sha256, in, in_len);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
630
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
631 unsigned char *out = NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
632 size_t outlen = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
633 size_t ivl = enc->ivlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
634 if(in_len != 0) {
462
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
635 outlen = len + 32;
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
636 out = malloc(outlen + ivl);
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
637 if(ivl > 0) {
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
638 memcpy(out, enc->iv, ivl);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
639 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
640
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
641 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
642 size_t avail = outlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
643 status = CCCryptorUpdate(enc->ctx, in, in_len, out + ivl, avail, &outlen);
462
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
644 if(in_len != len) {
488
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
645 size_t newoutlen = 16;
462
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
646 status = CCCryptorFinal(enc->ctx, out + ivl + outlen, 16, &newoutlen);
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
647 outlen += newoutlen;
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
648 enc->end = 1;
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
649 }
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
650 } else {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
651 out = malloc(32);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
652 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
653 size_t avail = outlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
654 status = CCCryptorFinal(enc->ctx, out, 32, &outlen);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
655 enc->end = 1;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
656 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
657 enc->tmp = (char*)out;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
658 enc->tmplen = outlen + ivl;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
659 enc->tmpoff = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
660
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
661 if(enc->ivlen > 0) {
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
662 enc->ivlen = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
663 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
664
462
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
665 free(in);
efda9aa1bbad applies aes stream fix to macos implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 459
diff changeset
666
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
667 return aes_read(buf, s, n, enc);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
668 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
669
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
670 int aes_encrypter_reset(AESEncrypter *enc, curl_off_t offset, int origin) {
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
671 if(origin != SEEK_SET || offset != 0 || !enc->seek) {
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
672 return CURL_SEEKFUNC_CANTSEEK;
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
673 }
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
674
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
675 enc->ivlen = 16;
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
676 if(enc->seek(enc->stream, 0, SEEK_SET) != 0) {
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
677 return CURL_SEEKFUNC_FAIL;
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
678 }
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
679 return CURL_SEEKFUNC_OK;
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
680 }
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
681
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
682 void aes_encrypter_close(AESEncrypter *enc) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
683 if(enc->tmp) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
684 free(enc->tmp);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
685 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
686 if(enc->iv) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
687 free(enc->iv);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
688 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
689 // TODO: cleanup cryptor
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
690 free(enc);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
691 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
692
505
481802342fdf ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 488
diff changeset
693 char* aes_encrypt(const char *in, size_t len, DavKey *key) {
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
694 unsigned char iv[16];
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
695 if(dav_rand_bytes(iv, 16)) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
696 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
697 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
698
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
699 CCCryptorRef cryptor;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
700 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
701 if(key->type == DAV_KEY_AES128) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
702 status = CCCryptorCreate(kCCEncrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding, key->data, key->length, iv, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
703 } else if(key->type == DAV_KEY_AES256) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
704 status = CCCryptorCreate(kCCEncrypt, kCCAlgorithmAES, kCCOptionPKCS7Padding, key->data, key->length, iv, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
705 } else {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
706 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
707 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
708
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
709 if(status != kCCSuccess) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
710 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
711 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
712
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
713 int buflen = len + 64;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
714 char *buf = calloc(1, buflen);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
715 memcpy(buf, iv, 16);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
716
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
717 int pos = 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
718 size_t avail = buflen - 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
719 size_t moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
720 char *out = buf + 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
721
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
722 status = CCCryptorUpdate(cryptor, in,
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
723 len, out, avail,
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
724 &moved);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
725 if(status != kCCSuccess) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
726 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
727 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
728 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
729
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
730 pos += moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
731 avail -= moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
732 out += moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
733
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
734 status = CCCryptorFinal(cryptor, out, avail, &moved);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
735 if(status != kCCSuccess) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
736 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
737 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
738 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
739
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
740 pos += moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
741
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
742 char *b64enc = util_base64encode(buf, pos);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
743 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
744
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
745 return b64enc;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
746 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
747
505
481802342fdf ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 488
diff changeset
748 char* aes_decrypt(const char *in, size_t *len, DavKey *key) {
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
749 int inlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
750 unsigned char *buf = (unsigned char*)util_base64decode_len(in, &inlen);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
751
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
752 CCCryptorRef cryptor;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
753 CCCryptorStatus status;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
754 if(key->type == DAV_KEY_AES128) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
755 status = CCCryptorCreate(kCCDecrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding, key->data, key->length, buf, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
756 } else if(key->type == DAV_KEY_AES256) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
757 status = CCCryptorCreate(kCCDecrypt, kCCAlgorithmAES, kCCOptionPKCS7Padding, key->data, key->length, buf, &cryptor);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
758 } else {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
759 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
760 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
761 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
762
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
763 if(status != kCCSuccess) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
764 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
765 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
766 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
767
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
768 char *out = malloc(inlen + 1);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
769 size_t outavail = inlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
770 size_t outlen = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
771
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
772 unsigned char *inbuf = buf + 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
773 inlen -= 16;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
774
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
775 size_t moved = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
776 status = CCCryptorUpdate(cryptor, inbuf, inlen, out, outavail, &moved);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
777 if(status != kCCSuccess) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
778 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
779 free(out);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
780 // TODO cryptor
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
781 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
782 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
783
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
784 outlen += moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
785 outavail -= moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
786
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
787 status = CCCryptorFinal(cryptor, out + outlen, outavail, &moved);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
788 if(status != kCCSuccess) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
789 free(buf);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
790 free(out);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
791 // TODO cryptor
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
792 return NULL;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
793 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
794
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
795 outlen += moved;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
796 out[outlen] = 0;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
797
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
798 *len = outlen;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
799 return out;
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
800 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
801
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
802 void dav_get_hash(DAV_SHA_CTX *sha256, unsigned char *buf) {
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
803 CC_SHA256_Final(buf, sha256);
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
804 }
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
805
367
4a6a59f89f9f adds dav-sync config for autodetecting tag changes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 354
diff changeset
806 char* dav_create_hash(const char *data, size_t len) {
4a6a59f89f9f adds dav-sync config for autodetecting tag changes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 354
diff changeset
807 unsigned char hash[DAV_SHA256_DIGEST_LENGTH];
4a6a59f89f9f adds dav-sync config for autodetecting tag changes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 354
diff changeset
808 CC_SHA256((const unsigned char*)data, len, hash);
4a6a59f89f9f adds dav-sync config for autodetecting tag changes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 354
diff changeset
809 return util_hexstr(hash, DAV_SHA256_DIGEST_LENGTH);
4a6a59f89f9f adds dav-sync config for autodetecting tag changes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 354
diff changeset
810 }
4a6a59f89f9f adds dav-sync config for autodetecting tag changes
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 354
diff changeset
811
520
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
812 DAV_SHA_CTX* dav_hash_init(void) {
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
813 DAV_SHA_CTX *ctx = malloc(sizeof(DAV_SHA_CTX));
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
814 CC_SHA256_Init(ctx);
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
815 return ctx;
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
816 }
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
817
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
818 void dav_hash_update(DAV_SHA_CTX *ctx, const char *data, size_t len) {
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
819 CC_SHA256_Update(ctx, data, len);
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
820 }
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
821
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
822 void dav_hash_final(DAV_SHA_CTX *ctx, unsigned char *buf) {
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
823 CC_SHA256_Final(buf, ctx);
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
824 free(ctx);
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
825 }
da2b0cc44e4f adds xml attribute support and xattr property
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 515
diff changeset
826
515
2465dd550bb5 fixes signedness of salt in dav_pw2key()
Mike Becker <universe@uap-core.de>
parents: 506
diff changeset
827 DavKey* dav_pw2key(const char *password, const unsigned char *salt, int saltlen, int pwfunc, int enc) {
488
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
828 if(!password) {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
829 return NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
830 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
831 size_t len = strlen(password);
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
832 if(len == 0) {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
833 return NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
834 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
835
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
836 // setup key data and length
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
837 unsigned char keydata[32];
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
838 int keylen = 32;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
839 switch(enc) {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
840 case DAV_KEY_AES128: keylen = 16; break;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
841 case DAV_KEY_AES256: keylen = 32; break;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
842 default: return NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
843 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
844
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
845 // generate key
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
846 switch(pwfunc) {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
847 case DAV_PWFUNC_PBKDF2_SHA256: {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
848 int result = CCKeyDerivationPBKDF(
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
849 kCCPBKDF2,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
850 password,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
851 len,
515
2465dd550bb5 fixes signedness of salt in dav_pw2key()
Mike Becker <universe@uap-core.de>
parents: 506
diff changeset
852 salt,
488
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
853 saltlen,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
854 kCCPRFHmacAlgSHA256,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
855 DAV_CRYPTO_ITERATION_COUNT,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
856 keydata,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
857 keylen);
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
858 if(result) {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
859 return NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
860 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
861 break;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
862 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
863 case DAV_PWFUNC_PBKDF2_SHA512: {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
864 int result = CCKeyDerivationPBKDF(
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
865 kCCPBKDF2,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
866 password,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
867 len,
515
2465dd550bb5 fixes signedness of salt in dav_pw2key()
Mike Becker <universe@uap-core.de>
parents: 506
diff changeset
868 salt,
488
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
869 saltlen,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
870 kCCPRFHmacAlgSHA512,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
871 DAV_CRYPTO_ITERATION_COUNT,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
872 keydata,
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
873 keylen);
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
874 if(result) {
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
875 return NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
876 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
877 break;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
878 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
879 default: return NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
880 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
881
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
882 // create DavKey with generated data
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
883 DavKey *key = malloc(sizeof(DavKey));
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
884 key->data = malloc(keylen);
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
885 key->length = keylen;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
886 key->name = NULL;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
887 key->type = enc;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
888 memcpy(key->data, keydata, keylen);
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
889 return key;
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
890 }
29b979ca8750 adds dav_pw2key commoncrypto implementation
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 478
diff changeset
891
349
0b4ecadaf3f9 ports openssl code to commoncrypto (macos)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 267
diff changeset
892 #endif
470
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
893
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
894 /* -------------------- Windows Crypto Functions -------------------- */
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
895 #ifdef DAV_CRYPTO_CNG
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
896
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
897 static void cng_cleanup(BCRYPT_ALG_HANDLE hAesAlg, BCRYPT_KEY_HANDLE hKey, BCRYPT_HASH_HANDLE hHash, void *pbObject) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
898 if(hAesAlg) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
899 BCryptCloseAlgorithmProvider(hAesAlg,0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
900 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
901 if(hKey) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
902 BCryptDestroyKey(hKey);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
903 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
904 if(hHash) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
905 BCryptDestroyHash(hHash);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
906 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
907 if(pbObject) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
908 free(pbObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
909 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
910 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
911
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
912 static int cng_init_key(BCRYPT_ALG_HANDLE *alg, BCRYPT_KEY_HANDLE *key, void **keyobj, DavKey *aesKey) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
913 BCRYPT_ALG_HANDLE hAesAlg = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
914 BCRYPT_KEY_HANDLE hKey = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
915
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
916 void *pbKeyObject = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
917 ULONG keyObjectLength = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
918
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
919 ULONG result = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
920
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
921 // check DavKey and get AES key length
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
922 if(!aesKey) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
923 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
924 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
925
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
926 ULONG aesKeyLength = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
927 if(aesKey->type == DAV_KEY_AES128) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
928 aesKeyLength = 16;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
929 } else if(aesKey->type == DAV_KEY_AES256) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
930 aesKeyLength = 32;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
931 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
932 if(aesKeyLength > aesKey->length || !aesKey->data) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
933 // invalid DavKey
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
934 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
935 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
936
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
937 // initialize BCrypt stuff
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
938 if(BCryptOpenAlgorithmProvider(&hAesAlg, BCRYPT_AES_ALGORITHM, NULL, 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
939 fprintf(stderr, "Error: BCryptOpenAlgorithmProvider failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
940 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
941 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
942
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
943 if(BCryptGetProperty(hAesAlg, BCRYPT_OBJECT_LENGTH, (PUCHAR)&keyObjectLength, sizeof(DWORD), &result, 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
944 fprintf(stderr, "Error: BCrypt: Cannot get BCRYPT_OBJECT_LENGTH\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
945 cng_cleanup(hAesAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
946 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
947 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
948
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
949 if(BCryptSetProperty(hAesAlg, BCRYPT_CHAINING_MODE, (PBYTE)BCRYPT_CHAIN_MODE_CBC, sizeof(BCRYPT_CHAIN_MODE_CBC), 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
950 fprintf(stderr, "Error: BCrypt: Cannot set CBC mode\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
951 cng_cleanup(hAesAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
952 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
953 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
954
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
955 pbKeyObject = calloc(1, keyObjectLength);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
956 if(!pbKeyObject) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
957 cng_cleanup(hAesAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
958 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
959 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
960
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
961 // init key
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
962 if(BCryptGenerateSymmetricKey(hAesAlg, &hKey, pbKeyObject, keyObjectLength, aesKey->data, aesKeyLength, 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
963 fprintf(stderr, "Error: BCrypt: Cannot set key\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
964 cng_cleanup(hAesAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
965 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
966 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
967
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
968 *alg = hAesAlg;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
969 *key = hKey;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
970 *keyobj = pbKeyObject;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
971
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
972 return 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
973 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
974
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
975 static int cng_hash_init(WinBCryptSHACTX *ctx) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
976 if(BCryptOpenAlgorithmProvider(&ctx->hAlg, BCRYPT_SHA256_ALGORITHM, NULL, 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
977 fprintf(stderr, "Error: BCryptOpenAlgorithmProvider failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
978 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
979 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
980
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
981 ULONG hashObjectLen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
982 ULONG result;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
983 if(BCryptGetProperty(ctx->hAlg, BCRYPT_OBJECT_LENGTH, (PBYTE)&hashObjectLen, sizeof(DWORD), &result, 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
984 cng_cleanup(ctx->hAlg, NULL, NULL, NULL);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
985 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
986 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
987
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
988 ctx->pbHashObject = calloc(1, hashObjectLen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
989
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
990 if(BCryptCreateHash(ctx->hAlg, &ctx->hHash, ctx->pbHashObject, hashObjectLen, NULL, 0, 0)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
991 cng_cleanup(ctx->hAlg, NULL, ctx->hHash, ctx->pbHashObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
992 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
993 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
994
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
995 return 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
996 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
997
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
998
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
999 int dav_rand_bytes(unsigned char *buf, size_t len) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1000 if(BCryptGenRandom(NULL, (unsigned char*)buf, (ULONG)len, BCRYPT_USE_SYSTEM_PREFERRED_RNG)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1001 return 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1002 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1003 return 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1004 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1005
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1006 AESDecrypter* aes_decrypter_new(DavKey *key, void *stream, dav_write_func write_func) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1007 AESDecrypter *dec = calloc(1, sizeof(AESDecrypter));
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1008 if(!dec) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1009 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1010 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1011 if(cng_hash_init(&dec->sha256)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1012 free(dec);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1013 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1014 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1015
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1016 dec->stream = stream;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1017 dec->write = write_func;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1018 dec->key = key;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1019 dec->init = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1020 dec->ivpos = 0;
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1021
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1022 return dec;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1023 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1024
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1025 static void aes_decrypter_init(AESDecrypter *dec) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1026 if(cng_init_key(&dec->ctx.hAlg, &dec->ctx.hKey, &dec->ctx.pbKeyObject, dec->key)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1027 fprintf(stderr, "Error: cng_init_key failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1028 exit(-1);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1029 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1030 // copy iv
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1031 memcpy(dec->ctx.pbIV, dec->ivtmp, 16);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1032 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1033
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1034 size_t aes_write(const void *buf, size_t s, size_t n, AESDecrypter *dec) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1035 int len = s*n;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1036 if(!dec->init) {
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1037 dec->init = 1;
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1038
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1039 size_t n = 16 - dec->ivpos;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1040 size_t cp = n > len ? len : n;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1041 memcpy(dec->ivtmp + dec->ivpos, buf, cp);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1042 dec->ivpos += cp;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1043 if(dec->ivpos >= 16) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1044 aes_decrypter_init(dec);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1045 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1046 if(len == cp) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1047 return len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1048 } else {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1049 buf = (char*)buf + cp;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1050 len -= cp;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1051 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1052 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1053
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1054 // the cipher text must be a multiply of 16
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1055 // remaining bytes are stored in ctx.buf and must be added to cibuf
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1056 // the next time
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1057 size_t cbufalloc = len + 64;
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1058 ULONG clen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1059 char *cbuf = malloc(cbufalloc);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1060
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1061 // add previous remaining bytes
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1062 if(dec->ctx.buflen > 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1063 memcpy(cbuf, dec->ctx.buf, dec->ctx.buflen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1064 clen = dec->ctx.buflen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1065 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1066 // add current bytes
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1067 memcpy(cbuf + clen, buf, len);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1068 clen += len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1069
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1070 // check if the message fits the blocksize
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1071 int remaining = clen % 16;
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1072 if(remaining == 0) {
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1073 // decrypt last block next time, or in aes_decrypter_shutdown
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1074 // this makes sure, that shutdown always decrypts the last block
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1075 // with BCRYPT_BLOCK_PADDING flag
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1076 remaining = 16;
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1077 }
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1078
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1079 // add remaining bytes to ctx.buf for the next aes_write run
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1080 clen -= remaining;
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1081 memcpy(dec->ctx.buf, cbuf + clen, remaining);
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1082 dec->ctx.buflen = remaining;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1083
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1084 // ready to decrypt the message
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1085 ULONG outlen = clen + 32;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1086 unsigned char *out = malloc(outlen);
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1087
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1088 // decrypt
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1089 if(clen > 0) {
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1090 ULONG enc_len = 0;
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1091 ULONG status = BCryptDecrypt(dec->ctx.hKey, cbuf, clen, NULL, dec->ctx.pbIV, 16, out, outlen, &enc_len, 0);
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1092 if(status > 0) {
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1093 fprintf(stderr, "Error: BCryptDecrypt failed: 0x%X\n", status);
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1094 free(out);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1095 free(cbuf);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1096 return 0;
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1097 }
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1098 outlen = enc_len;
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1099 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1100
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1101 // write decrypted data to the output stream and update the hash
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1102 dec->write(out, 1, outlen, dec->stream);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1103 BCryptHashData(dec->sha256.hHash, out, outlen, 0);
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1104
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1105 free(out);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1106 free(cbuf);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1107
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1108 return (s*n) / s;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1109 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1110
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1111 void aes_decrypter_shutdown(AESDecrypter *dec) {
689
b1f7d83f6e69 fix aes decrypter stream
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 688
diff changeset
1112 if(dec->init && dec->ctx.buflen > 0) {
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1113 ULONG outlen = 64;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1114 char out[64];
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1115 if(BCryptDecrypt(dec->ctx.hKey, dec->ctx.buf, dec->ctx.buflen, NULL, dec->ctx.pbIV, 16, out, outlen, &outlen, BCRYPT_BLOCK_PADDING)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1116 fprintf(stderr, "Error: BCryptDecrypt failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1117 return;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1118 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1119 dec->write(out, 1, outlen, dec->stream);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1120 BCryptHashData(dec->sha256.hHash, out, outlen, 0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1121 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1122 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1123
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1124 void aes_decrypter_close(AESDecrypter *dec) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1125 cng_cleanup(dec->ctx.hAlg, dec->ctx.hKey, NULL, dec->ctx.pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1126 cng_cleanup(dec->sha256.hAlg, NULL, dec->sha256.hHash, dec->sha256.pbHashObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1127 free(dec);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1128 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1129
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1130 AESEncrypter* aes_encrypter_new(DavKey *key, void *stream, dav_read_func read_func, dav_seek_func seek_func) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1131 unsigned char *iv = malloc(16);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1132 if(dav_rand_bytes(iv, 16)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1133 free(iv);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1134 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1135 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1136
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1137 AESEncrypter *enc = calloc(1, sizeof(AESEncrypter));
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1138 if(cng_hash_init(&enc->sha256)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1139 free(iv);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1140 free(enc);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1141 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1142 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1143
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1144 enc->stream = stream;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1145 enc->read = read_func;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1146 enc->seek = seek_func;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1147 enc->tmp = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1148 enc->tmplen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1149 enc->tmpoff = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1150 enc->end = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1151 enc->iv = iv;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1152 enc->ivlen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1153
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1154 if(cng_init_key(&enc->ctx.hAlg, &enc->ctx.hKey, &enc->ctx.pbKeyObject, key)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1155 fprintf(stderr, "Error: cng_init_key failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1156 exit(-1);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1157 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1158
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1159 enc->ctx.buflen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1160 memcpy(enc->ctx.pbIV, iv, 16);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1161
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1162 return enc;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1163 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1164
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1165 size_t aes_read(void *buf, size_t s, size_t n, AESEncrypter *enc) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1166 size_t len = s*n;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1167 size_t nread = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1168
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1169 if(enc->tmp) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1170 // the temp buffer contains bytes that are already encrypted, but
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1171 // the last aes_read had not enough read buffer space
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1172
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1173 // in case we have a tmp buf, we just return this
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1174 size_t tmp_diff = enc->tmplen - enc->tmpoff;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1175 size_t cp_len = tmp_diff > len ? len : tmp_diff;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1176 memcpy(buf, enc->tmp + enc->tmpoff, cp_len);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1177 enc->tmpoff += cp_len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1178 if(enc->tmpoff >= enc->tmplen) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1179 free(enc->tmp);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1180 enc->tmp = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1181 enc->tmplen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1182 enc->tmpoff = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1183 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1184 return cp_len / s;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1185 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1186
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1187 if(enc->ivlen < 16) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1188 size_t copy_iv_len = 16 - enc->ivlen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1189 copy_iv_len = len > copy_iv_len ? copy_iv_len : len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1190
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1191 memcpy(buf, enc->iv, copy_iv_len);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1192 buf += copy_iv_len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1193 len -= copy_iv_len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1194 nread = copy_iv_len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1195
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1196 enc->ivlen += copy_iv_len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1197
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1198 if(len == 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1199 return copy_iv_len / s;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1200 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1201 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1202
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1203 if(enc->end) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1204 return 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1205 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1206
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1207 size_t remaining = len % 16;
690
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1208 len -= remaining;
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1209
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1210 if(len > 256) {
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1211 len -= 16; // optimization for avoiding tmp buffer usage
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1212 }
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1213
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1214 size_t inalloc = len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1215 ULONG inlen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1216 unsigned char *in = malloc(inalloc);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1217
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1218 // fill the input buffer
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1219 while(inlen < inalloc) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1220 size_t r = enc->read(in + inlen, 1, inalloc - inlen, enc->stream);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1221 if(r == 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1222 enc->end = 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1223 break;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1224 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1225 inlen += r;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1226 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1227
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1228 if(inlen == 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1229 return nread / s;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1230 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1231
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1232 // hash read data
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1233 BCryptHashData(enc->sha256.hHash, in, inlen, 0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1234
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1235 // create output buffer
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1236 ULONG outalloc = inlen + 16;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1237 ULONG outlen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1238 char *out = malloc(outalloc);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1239
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1240 // encrypt
690
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1241 int flags = 0;
692
56b66fe2b4f5 fix dav-sync deltav versioning
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 691
diff changeset
1242 if(inlen % 16 != 0) {
691
48ec0ab17011 fix encryption of files with specific length
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 690
diff changeset
1243 enc->end = 1;
48ec0ab17011 fix encryption of files with specific length
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 690
diff changeset
1244 }
48ec0ab17011 fix encryption of files with specific length
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 690
diff changeset
1245 if(enc->end) {
690
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1246 flags = BCRYPT_BLOCK_PADDING;
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1247 }
ce253cfb9127 fix aes encrypter stream (cng)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 689
diff changeset
1248 if(BCryptEncrypt(enc->ctx.hKey, in, inlen, NULL, enc->ctx.pbIV, 16, out, outalloc, &outlen, flags)) {
688
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1249 fprintf(stderr, "Error: BCryptEncrypt failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1250 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1251
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1252 // check if the output fits in buf, if not, save the remaining bytes in tmp
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1253 if(outlen > len) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1254 size_t tmplen = outlen - len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1255 char *tmp = malloc(tmplen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1256 memcpy(tmp, out+len, tmplen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1257
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1258 enc->tmp = tmp;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1259 enc->tmplen = tmplen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1260 enc->tmpoff = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1261
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1262 outlen = len;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1263 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1264
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1265 // fill read buffer and return
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1266 memcpy(buf, out, outlen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1267 nread += outlen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1268
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1269 free(in);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1270 free(out);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1271
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1272 return nread / s;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1273 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1274
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1275 void aes_encrypter_close(AESEncrypter *enc) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1276 enc->end = 1;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1277 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1278
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1279 int aes_encrypter_reset(AESEncrypter *enc, curl_off_t offset, int origin) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1280 if(origin != SEEK_SET || offset != 0 || !enc->seek) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1281 return CURL_SEEKFUNC_CANTSEEK;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1282 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1283
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1284 enc->ivlen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1285 memcpy(enc->ctx.pbIV, enc->iv, 16);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1286 if(enc->seek(enc->stream, 0, SEEK_SET) != 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1287 return CURL_SEEKFUNC_FAIL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1288 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1289 return CURL_SEEKFUNC_OK;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1290 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1291
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1292 char* aes_encrypt(const char *in, size_t len, DavKey *key) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1293 // create random IV
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1294 char iv[16];
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1295 if(dav_rand_bytes(iv, 16)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1296 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1297 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1298
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1299 // initialize bcrypt stuff
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1300 BCRYPT_ALG_HANDLE hAlg = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1301 BCRYPT_KEY_HANDLE hKey = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1302 void *pbKeyObject = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1303 if(cng_init_key(&hAlg, &hKey, &pbKeyObject, key)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1304 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1305 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1306
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1307 // create output buffer
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1308 ULONG outlen = len + 128;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1309 char *out = malloc(outlen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1310
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1311 // the output must start with the IV
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1312 memcpy(out, iv, 16);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1313 char *encbuf = out + 16;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1314 ULONG enclen = outlen - 16;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1315 ULONG encoutlen = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1316
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1317 // encrypt
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1318 if(BCryptEncrypt(hKey, (PUCHAR)in, len, NULL, (PUCHAR)iv, 16, encbuf, enclen, &encoutlen, BCRYPT_BLOCK_PADDING)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1319 fprintf(stderr, "Error: BCryptEncrypt failed\n");
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1320 cng_cleanup(hAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1321 free(out);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1322 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1323 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1324
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1325 outlen = encoutlen + 16; // length of encrypted data + 16 bytes IV
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1326
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1327 // base64 encode
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1328 char *outstr = util_base64encode(out, outlen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1329
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1330 cng_cleanup(hAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1331 free(out);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1332
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1333 return outstr;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1334 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1335
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1336 char* aes_decrypt(const char *in, size_t *len, DavKey *key) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1337 BCRYPT_ALG_HANDLE hAlg = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1338 BCRYPT_KEY_HANDLE hKey = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1339 void *pbKeyObject = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1340 if(cng_init_key(&hAlg, &hKey, &pbKeyObject, key)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1341 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1342 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1343
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1344 int inlen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1345 unsigned char *buf = (unsigned char*)util_base64decode_len(in, &inlen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1346 if(inlen < 16 || !buf) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1347 cng_cleanup(hAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1348 if(buf) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1349 free(buf);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1350 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1351 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1352 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1353
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1354 // encrypted data starts with IV
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1355 char iv[16];
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1356 memcpy(iv, buf, 16);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1357
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1358 // decrypt data
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1359 char *data = buf + 16; // encrypted data starts after IV
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1360 size_t datalen = inlen - 16;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1361
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1362 // create output buffer
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1363 ULONG outlen = inlen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1364 char *out = malloc(outlen + 1);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1365
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1366 // decrypt
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1367 if(BCryptDecrypt(hKey, data, datalen, NULL, iv, 16, out, outlen, &outlen, BCRYPT_BLOCK_PADDING)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1368 cng_cleanup(hAlg, hKey, NULL, pbKeyObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1369 free(out);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1370 free(buf);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1371 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1372 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1373
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1374 // decrypt finished, return
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1375 out[outlen] = 0;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1376 *len = (size_t)outlen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1377 return out;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1378 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1379
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1380 void dav_get_hash(DAV_SHA_CTX *sha256, unsigned char *buf) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1381 BCryptFinishHash(sha256->hHash, buf, DAV_SHA256_DIGEST_LENGTH, 0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1382 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1383
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1384
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1385 char* dav_create_hash(const char *data, size_t len) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1386 unsigned char hash[DAV_SHA256_DIGEST_LENGTH];
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1387 DAV_SHA_CTX *ctx = dav_hash_init();
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1388 if(ctx) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1389 dav_hash_update(ctx, data, len);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1390 dav_hash_final(ctx, hash);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1391 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1392 return util_hexstr(hash, DAV_SHA256_DIGEST_LENGTH);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1393 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1394
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1395 DAV_SHA_CTX* dav_hash_init(void) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1396 DAV_SHA_CTX *ctx = malloc(sizeof(DAV_SHA_CTX));
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1397 if(!ctx) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1398 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1399 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1400 if(cng_hash_init(ctx)) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1401 free(ctx);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1402 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1403 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1404 return ctx;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1405 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1406
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1407 void dav_hash_update(DAV_SHA_CTX *ctx, const char *data, size_t len) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1408 BCryptHashData(ctx->hHash, (PUCHAR)data, len, 0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1409 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1410
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1411 void dav_hash_final(DAV_SHA_CTX *ctx, unsigned char *buf) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1412 BCryptFinishHash(ctx->hHash, (PUCHAR)buf, DAV_SHA256_DIGEST_LENGTH, 0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1413
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1414 // cleanup
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1415 cng_cleanup(ctx->hAlg, NULL, ctx->hHash, ctx->pbHashObject);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1416 free(ctx);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1417 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1418
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1419 DavKey* dav_pw2key(const char *password, const unsigned char *salt, int saltlen, int pwfunc, int enc) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1420 if(!password) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1421 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1422 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1423 size_t len = strlen(password);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1424 if(len == 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1425 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1426 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1427
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1428 // setup key data and length
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1429 unsigned char keydata[128];
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1430 int keylen = 32;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1431 switch(enc) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1432 case DAV_KEY_AES128: keylen = 16; break;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1433 case DAV_KEY_AES256: keylen = 32; break;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1434 default: return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1435 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1436
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1437 LPCWSTR algid;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1438 switch(pwfunc) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1439 case DAV_PWFUNC_PBKDF2_SHA256: algid = BCRYPT_SHA256_ALGORITHM; break;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1440 case DAV_PWFUNC_PBKDF2_SHA512: algid = BCRYPT_SHA512_ALGORITHM; break;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1441 default: return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1442 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1443
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1444 // open algorithm provider
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1445 BCRYPT_ALG_HANDLE hAlg;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1446 ULONG status = BCryptOpenAlgorithmProvider(&hAlg, algid, NULL, BCRYPT_ALG_HANDLE_HMAC_FLAG);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1447 if(status > 0) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1448 fprintf(stderr, "Error: dav_pw2key: BCryptOpenAlgorithmProvider failed: 0x%X\n", (unsigned int)status);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1449 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1450 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1451
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1452 // derive key
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1453 status = BCryptDeriveKeyPBKDF2(
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1454 hAlg,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1455 (PUCHAR)password,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1456 len,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1457 (PUCHAR)salt,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1458 saltlen,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1459 DAV_CRYPTO_ITERATION_COUNT,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1460 keydata,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1461 128,
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1462 0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1463
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1464 BCryptCloseAlgorithmProvider(hAlg,0);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1465
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1466 if(status) {
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1467 fprintf(stderr, "Error: dav_pw2key: BCryptDeriveKeyPBKDF2 failed: 0x%X\n", (unsigned int)status);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1468 return NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1469 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1470
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1471 // create DavKey with generated data
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1472 DavKey *key = malloc(sizeof(DavKey));
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1473 key->data = malloc(keylen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1474 key->length = keylen;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1475 key->name = NULL;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1476 key->type = enc;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1477 memcpy(key->data, keydata, keylen);
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1478 return key;
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1479 }
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1480 #endif
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1481
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1482
d405d2ac78e6 replace openssl on windows with cng/bcrypt
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 625
diff changeset
1483
470
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1484 UcxBuffer* aes_encrypt_buffer(UcxBuffer *in, DavKey *key) {
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1485 UcxBuffer *encbuf = ucx_buffer_new(
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1486 NULL,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1487 in->size+16,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1488 UCX_BUFFER_AUTOEXTEND);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1489
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1490 AESEncrypter *enc = aes_encrypter_new(
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1491 key,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1492 in,
478
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
1493 (dav_read_func)ucx_buffer_read,
baa63fef5c5c fixes redirects
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 470
diff changeset
1494 NULL);
470
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1495 if(!enc) {
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1496 ucx_buffer_free(encbuf);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1497 return NULL;
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1498 }
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1499
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1500 char buf[1024];
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1501 size_t r;
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1502 while((r = aes_read(buf, 1, 1024, enc)) > 0) {
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1503 ucx_buffer_write(buf, 1, r, encbuf);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1504 }
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1505 aes_encrypter_close(enc);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1506
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1507 encbuf->pos = 0;
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1508 return encbuf;
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1509 }
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1510
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1511 UcxBuffer* aes_decrypt_buffer(UcxBuffer *in, DavKey *key) {
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1512 UcxBuffer *decbuf = ucx_buffer_new(
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1513 NULL,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1514 in->size,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1515 UCX_BUFFER_AUTOEXTEND);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1516 AESDecrypter *dec = aes_decrypter_new(
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1517 key,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1518 decbuf,
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1519 (dav_write_func)ucx_buffer_write);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1520
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1521 aes_write(in->space, 1, in->size, dec);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1522 aes_decrypter_shutdown(dec);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1523 aes_decrypter_close(dec);
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1524 decbuf->pos = 0;
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1525 return decbuf;
6bf798ad3aec adds encrypted password store
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 462
diff changeset
1526 }

mercurial