--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/server/util/hashing.c Wed May 28 20:54:43 2025 +0200 @@ -0,0 +1,69 @@ +/* + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. + * + * Copyright 2025 Olaf Wintermann. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "hashing.h" + +#include <stdlib.h> + +WS_SHA_CTX* ws_sha256_create(void) { + WS_SHA_CTX *ctx = malloc(sizeof(WS_SHA_CTX)); + ws_sha256_init(ctx); + return ctx; +} + +#if OPENSSL_VERSION_NUMBER < 0x30000000L + +void ws_sha256_init(WS_SHA_CTX *ctx) { + SHA256_Init(ctx); +} + +void ws_sha256_update(WS_SHA_CTX *ctx, const void *data, size_t length) { + SHA256_Update(ctx, data, length); +} + +void ws_sha256_final(char *md, WS_SHA_CTX *ctx) { + SHA256_Final(md, ctx); +} + +#else + +void ws_sha256_init(WS_SHA_CTX *ctx) { + EVP_MD_CTX *mdctx = EVP_MD_CTX_new(); + EVP_DigestInit_ex(mdctx, EVP_sha256(), NULL); + *ctx = mdctx; +} + +void ws_sha256_update(WS_SHA_CTX *ctx, const char *data, size_t length) { + EVP_DigestUpdate(*ctx, data, length); +} + +void ws_sha256_final(WS_SHA_CTX *ctx, unsigned char *md) { + EVP_DigestFinal(*ctx, md, NULL); +} + +#endif