299 lines
9.7 KiB
C
299 lines
9.7 KiB
C
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#include <openssl/digest.h>
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#include <assert.h>
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#include <string.h>
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#include <openssl/md5.h>
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#include <openssl/obj.h>
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#include <openssl/sha.h>
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#include "internal.h"
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#if defined(NDEBUG)
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#define CHECK(x) (void) (x)
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#else
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#define CHECK(x) assert(x)
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#endif
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static void md5_init(EVP_MD_CTX *ctx) {
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CHECK(MD5_Init(ctx->md_data));
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}
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static void md5_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
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CHECK(MD5_Update(ctx->md_data, data, count));
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}
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static void md5_final(EVP_MD_CTX *ctx, uint8_t *out) {
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CHECK(MD5_Final(out, ctx->md_data));
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}
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static const EVP_MD md5_md = {
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NID_md5, MD5_DIGEST_LENGTH, 0 /* flags */, md5_init,
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md5_update, md5_final, 64 /* block size */, sizeof(MD5_CTX),
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};
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const EVP_MD *EVP_md5(void) { return &md5_md; }
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static void sha1_init(EVP_MD_CTX *ctx) {
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CHECK(SHA1_Init(ctx->md_data));
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}
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static void sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
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CHECK(SHA1_Update(ctx->md_data, data, count));
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}
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static void sha1_final(EVP_MD_CTX *ctx, uint8_t *md) {
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CHECK(SHA1_Final(md, ctx->md_data));
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}
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static const EVP_MD sha1_md = {
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NID_sha1, SHA_DIGEST_LENGTH, 0 /* flags */, sha1_init,
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sha1_update, sha1_final, 64 /* block size */, sizeof(SHA_CTX),
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};
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const EVP_MD *EVP_sha1(void) { return &sha1_md; }
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static void sha224_init(EVP_MD_CTX *ctx) {
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CHECK(SHA224_Init(ctx->md_data));
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}
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static void sha224_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
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CHECK(SHA224_Update(ctx->md_data, data, count));
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}
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static void sha224_final(EVP_MD_CTX *ctx, uint8_t *md) {
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CHECK(SHA224_Final(md, ctx->md_data));
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}
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static const EVP_MD sha224_md = {
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NID_sha224, SHA224_DIGEST_LENGTH, 0 /* flags */,
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sha224_init, sha224_update, sha224_final,
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64 /* block size */, sizeof(SHA256_CTX),
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};
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const EVP_MD *EVP_sha224(void) { return &sha224_md; }
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static void sha256_init(EVP_MD_CTX *ctx) {
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CHECK(SHA256_Init(ctx->md_data));
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}
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static void sha256_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
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CHECK(SHA256_Update(ctx->md_data, data, count));
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}
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static void sha256_final(EVP_MD_CTX *ctx, uint8_t *md) {
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CHECK(SHA256_Final(md, ctx->md_data));
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}
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static const EVP_MD sha256_md = {
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NID_sha256, SHA256_DIGEST_LENGTH, 0 /* flags */,
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sha256_init, sha256_update, sha256_final,
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64 /* block size */, sizeof(SHA256_CTX),
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};
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const EVP_MD *EVP_sha256(void) { return &sha256_md; }
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static void sha384_init(EVP_MD_CTX *ctx) {
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CHECK(SHA384_Init(ctx->md_data));
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}
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static void sha384_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
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CHECK(SHA384_Update(ctx->md_data, data, count));
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}
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static void sha384_final(EVP_MD_CTX *ctx, uint8_t *md) {
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CHECK(SHA384_Final(md, ctx->md_data));
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}
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static const EVP_MD sha384_md = {
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NID_sha384, SHA384_DIGEST_LENGTH, 0 /* flags */,
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sha384_init, sha384_update, sha384_final,
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128 /* block size */, sizeof(SHA512_CTX),
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};
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const EVP_MD *EVP_sha384(void) { return &sha384_md; }
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static void sha512_init(EVP_MD_CTX *ctx) {
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CHECK(SHA512_Init(ctx->md_data));
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}
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static void sha512_update(EVP_MD_CTX *ctx, const void *data, size_t count) {
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CHECK(SHA512_Update(ctx->md_data, data, count));
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}
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static void sha512_final(EVP_MD_CTX *ctx, uint8_t *md) {
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CHECK(SHA512_Final(md, ctx->md_data));
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}
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static const EVP_MD sha512_md = {
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NID_sha512, SHA512_DIGEST_LENGTH, 0 /* flags */,
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sha512_init, sha512_update, sha512_final,
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128 /* block size */, sizeof(SHA512_CTX),
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};
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const EVP_MD *EVP_sha512(void) { return &sha512_md; }
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typedef struct {
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MD5_CTX md5;
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SHA_CTX sha1;
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} MD5_SHA1_CTX;
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static void md5_sha1_init(EVP_MD_CTX *md_ctx) {
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MD5_SHA1_CTX *ctx = md_ctx->md_data;
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CHECK(MD5_Init(&ctx->md5) && SHA1_Init(&ctx->sha1));
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}
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static void md5_sha1_update(EVP_MD_CTX *md_ctx, const void *data,
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size_t count) {
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MD5_SHA1_CTX *ctx = md_ctx->md_data;
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CHECK(MD5_Update(&ctx->md5, data, count) &&
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SHA1_Update(&ctx->sha1, data, count));
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}
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static void md5_sha1_final(EVP_MD_CTX *md_ctx, uint8_t *out) {
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MD5_SHA1_CTX *ctx = md_ctx->md_data;
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CHECK(MD5_Final(out, &ctx->md5) &&
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SHA1_Final(out + MD5_DIGEST_LENGTH, &ctx->sha1));
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}
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static const EVP_MD md5_sha1_md = {
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NID_md5_sha1,
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MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
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0 /* flags */,
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md5_sha1_init,
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md5_sha1_update,
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md5_sha1_final,
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64 /* block size */,
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sizeof(MD5_SHA1_CTX),
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};
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const EVP_MD *EVP_md5_sha1(void) { return &md5_sha1_md; }
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struct nid_to_digest {
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int nid;
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const EVP_MD* (*md_func)(void);
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const char *short_name;
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const char *long_name;
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};
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static const struct nid_to_digest nid_to_digest_mapping[] = {
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{ NID_md5, EVP_md5, SN_md5, LN_md5 },
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{ NID_sha1, EVP_sha1, SN_sha1, LN_sha1 },
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{ NID_sha224, EVP_sha224, SN_sha224, LN_sha224 },
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{ NID_sha256, EVP_sha256, SN_sha256, LN_sha256 },
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{ NID_sha384, EVP_sha384, SN_sha384, LN_sha384 },
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{ NID_sha512, EVP_sha512, SN_sha512, LN_sha512 },
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{ NID_md5_sha1, EVP_md5_sha1, SN_md5_sha1, LN_md5_sha1 },
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{ NID_dsaWithSHA, EVP_sha1, SN_dsaWithSHA, LN_dsaWithSHA },
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{ NID_dsaWithSHA1, EVP_sha1, SN_dsaWithSHA1, LN_dsaWithSHA1 },
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{ NID_ecdsa_with_SHA1, EVP_sha1, SN_ecdsa_with_SHA1, NULL },
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{ NID_md5WithRSAEncryption, EVP_md5, SN_md5WithRSAEncryption,
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LN_md5WithRSAEncryption },
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{ NID_sha1WithRSAEncryption, EVP_sha1, SN_sha1WithRSAEncryption,
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LN_sha1WithRSAEncryption },
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{ NID_sha224WithRSAEncryption, EVP_sha224, SN_sha224WithRSAEncryption,
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LN_sha224WithRSAEncryption },
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{ NID_sha256WithRSAEncryption, EVP_sha256, SN_sha256WithRSAEncryption,
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LN_sha256WithRSAEncryption },
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{ NID_sha384WithRSAEncryption, EVP_sha384, SN_sha384WithRSAEncryption,
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LN_sha384WithRSAEncryption },
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{ NID_sha512WithRSAEncryption, EVP_sha512, SN_sha512WithRSAEncryption,
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LN_sha512WithRSAEncryption },
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};
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const EVP_MD* EVP_get_digestbynid(int nid) {
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unsigned i;
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for (i = 0; i < sizeof(nid_to_digest_mapping) / sizeof(struct nid_to_digest);
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i++) {
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if (nid_to_digest_mapping[i].nid == nid) {
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return nid_to_digest_mapping[i].md_func();
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}
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}
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return NULL;
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}
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const EVP_MD* EVP_get_digestbyobj(const ASN1_OBJECT *obj) {
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return EVP_get_digestbynid(OBJ_obj2nid(obj));
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}
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const EVP_MD *EVP_get_digestbyname(const char *name) {
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unsigned i;
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for (i = 0; i < sizeof(nid_to_digest_mapping) / sizeof(struct nid_to_digest);
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i++) {
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const char *short_name = nid_to_digest_mapping[i].short_name;
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const char *long_name = nid_to_digest_mapping[i].long_name;
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if ((short_name && strcmp(short_name, name) == 0) ||
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(long_name && strcmp(long_name, name) == 0)) {
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return nid_to_digest_mapping[i].md_func();
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}
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}
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return NULL;
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}
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