src/server/util/hashing.h

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1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2025 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef HASHING_H
30 #define HASHING_H
31
32
33 #ifdef __APPLE__
34 /* macos */
35
36 #define WS_CRYPTO_COMMON_CRYPTO
37
38 #define WS_AES_CTX CCCryptorRef
39 #define WS_SHA_CTX CC_SHA256_CTX
40 #define WS_SHA256_DIGEST_LENGTH 32
41
42 #include <CommonCrypto/CommonCrypto.h>
43 #include <CommonCrypto/CommonDigest.h>
44
45 #elif defined(_WIN32)
46
47 #define WS_CRYPTO_CNG
48
49 #include <windows.h>
50 #include <bcrypt.h>
51
52 typedef struct WinBCryptCTX {
53 BCRYPT_ALG_HANDLE hAlg;
54 BCRYPT_KEY_HANDLE hKey;
55 void *pbKeyObject;
56 unsigned char pbIV[16];
57
58 unsigned char buf[16];
59 ULONG buflen;
60 } WinBCryptCTX;
61
62 typedef struct WinBCryptSHACTX {
63 BCRYPT_ALG_HANDLE hAlg;
64 BCRYPT_HASH_HANDLE hHash;
65 void *pbHashObject;
66 } WinBCryptSHACTX;
67
68 #define WS_AES_CTX WinBCryptCTX
69 #define WS_SHA_CTX WinBCryptSHACTX
70 #define WS_SHA256_DIGEST_LENGTH 32
71
72 #else
73 /* unix/linux */
74
75 #include <openssl/evp.h>
76 #include <openssl/rand.h>
77
78 #define WS_USE_OPENSSL
79
80 #define WS_AES_CTX EVP_CIPHER_CTX*
81
82 #if OPENSSL_VERSION_NUMBER < 0x30000000L
83 #define WS_SHA_CTX SHA256_CTX
84 #else
85 #define WS_SHA_CTX EVP_MD_CTX*
86 #endif
87 #define WS_SHA256_DIGEST_LENGTH 32
88
89
90 #if defined(__sun) && defined(__SunOS_5_10)
91 #include <sha2.h>
92 #define SHA256_Init SHA256Init
93 #define SHA256_Update SHA256Update
94 #define SHA256_Final SHA256Final
95 #else
96 #include <openssl/sha.h>
97 #endif
98
99 #endif
100
101
102 void ws_sha256_init(WS_SHA_CTX *ctx);
103 WS_SHA_CTX* ws_sha256_create(void);
104 void ws_sha256_update(WS_SHA_CTX *ctx, const char *data, size_t len);
105 void ws_sha256_final(WS_SHA_CTX *ctx, unsigned char *buf);
106
107
108 #ifdef __cplusplus
109 }
110 #endif
111
112 #endif /* HASHING_H */
113

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