mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
a5abd438f8
This makes S/MIME and CMS signing in MIME format for SHA1 work again. Reviewed-by: Rich Salz <rsalz@openssl.org>
143 lines
3.2 KiB
C
143 lines
3.2 KiB
C
/*
|
|
* Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the OpenSSL license (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#if !defined(OPENSSL_NO_MD5)
|
|
|
|
# include <openssl/evp.h>
|
|
# include <openssl/objects.h>
|
|
# include <openssl/x509.h>
|
|
# include <openssl/md5.h>
|
|
# include <openssl/sha.h>
|
|
# include "internal/cryptlib.h"
|
|
# include "internal/evp_int.h"
|
|
# include <openssl/rsa.h>
|
|
|
|
struct md5_sha1_ctx {
|
|
MD5_CTX md5;
|
|
SHA_CTX sha1;
|
|
};
|
|
|
|
static int init(EVP_MD_CTX *ctx)
|
|
{
|
|
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
|
|
if (!MD5_Init(&mctx->md5))
|
|
return 0;
|
|
return SHA1_Init(&mctx->sha1);
|
|
}
|
|
|
|
static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
|
|
{
|
|
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
|
|
if (!MD5_Update(&mctx->md5, data, count))
|
|
return 0;
|
|
return SHA1_Update(&mctx->sha1, data, count);
|
|
}
|
|
|
|
static int final(EVP_MD_CTX *ctx, unsigned char *md)
|
|
{
|
|
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
|
|
if (!MD5_Final(md, &mctx->md5))
|
|
return 0;
|
|
return SHA1_Final(md + MD5_DIGEST_LENGTH, &mctx->sha1);
|
|
}
|
|
|
|
static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms)
|
|
{
|
|
unsigned char padtmp[48];
|
|
unsigned char md5tmp[MD5_DIGEST_LENGTH];
|
|
unsigned char sha1tmp[SHA_DIGEST_LENGTH];
|
|
struct md5_sha1_ctx *mctx;
|
|
|
|
if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
|
|
return -2;
|
|
|
|
if (ctx == NULL)
|
|
return 0;
|
|
|
|
mctx = EVP_MD_CTX_md_data(ctx);
|
|
|
|
/* SSLv3 client auth handling: see RFC-6101 5.6.8 */
|
|
if (mslen != 48)
|
|
return 0;
|
|
|
|
/* At this point hash contains all handshake messages, update
|
|
* with master secret and pad_1.
|
|
*/
|
|
|
|
if (update(ctx, ms, mslen) <= 0)
|
|
return 0;
|
|
|
|
/* Set padtmp to pad_1 value */
|
|
memset(padtmp, 0x36, sizeof(padtmp));
|
|
|
|
if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
|
|
return 0;
|
|
|
|
if (!MD5_Final(md5tmp, &mctx->md5))
|
|
return 0;
|
|
|
|
if (!SHA1_Update(&mctx->sha1, padtmp, 40))
|
|
return 0;
|
|
|
|
if (!SHA1_Final(sha1tmp, &mctx->sha1))
|
|
return 0;
|
|
|
|
/* Reinitialise context */
|
|
|
|
if (!init(ctx))
|
|
return 0;
|
|
|
|
if (update(ctx, ms, mslen) <= 0)
|
|
return 0;
|
|
|
|
/* Set padtmp to pad_2 value */
|
|
memset(padtmp, 0x5c, sizeof(padtmp));
|
|
|
|
if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
|
|
return 0;
|
|
|
|
if (!MD5_Update(&mctx->md5, md5tmp, sizeof(md5tmp)))
|
|
return 0;
|
|
|
|
if (!SHA1_Update(&mctx->sha1, padtmp, 40))
|
|
return 0;
|
|
|
|
if (!SHA1_Update(&mctx->sha1, sha1tmp, sizeof(sha1tmp)))
|
|
return 0;
|
|
|
|
/* Now when ctx is finalised it will return the SSL v3 hash value */
|
|
|
|
OPENSSL_cleanse(md5tmp, sizeof(md5tmp));
|
|
OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
static const EVP_MD md5_sha1_md = {
|
|
NID_md5_sha1,
|
|
NID_md5_sha1,
|
|
MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
|
|
0,
|
|
init,
|
|
update,
|
|
final,
|
|
NULL,
|
|
NULL,
|
|
MD5_CBLOCK,
|
|
sizeof(EVP_MD *) + sizeof(struct md5_sha1_ctx),
|
|
ctrl
|
|
};
|
|
|
|
const EVP_MD *EVP_md5_sha1(void)
|
|
{
|
|
return &md5_sha1_md;
|
|
}
|
|
#endif
|