mirror of
https://github.com/openssl/openssl.git
synced 2024-11-21 01:15:20 +08:00
d5e5e2ffaf
Move digest code into the relevant providers (fips, default, legacy). The headers are temporarily moved to be internal, and will be moved into providers after all external references are resolved. The deprecated digest code can not be removed until EVP_PKEY (signing) is supported by providers. EVP_MD data can also not yet be cleaned up for the same reasons. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8763)
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/crypto.h>
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#include <openssl/opensslconf.h>
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#include <openssl/opensslv.h>
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#include <openssl/evp.h>
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#include <openssl/sha.h>
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/* The implementation is in ../md32_common.h */
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#include "sha_locl.h"
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#include "internal/sha.h"
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int sha1_ctrl(SHA_CTX *sha1, int cmd, int mslen, void *ms)
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{
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unsigned char padtmp[40];
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unsigned char sha1tmp[SHA_DIGEST_LENGTH];
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if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
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return -2;
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if (sha1 == NULL)
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return 0;
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/* SSLv3 client auth handling: see RFC-6101 5.6.8 */
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if (mslen != 48)
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return 0;
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/* At this point hash contains all handshake messages, update
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* with master secret and pad_1.
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*/
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if (SHA1_Update(sha1, ms, mslen) <= 0)
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return 0;
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/* Set padtmp to pad_1 value */
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memset(padtmp, 0x36, sizeof(padtmp));
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if (!SHA1_Update(sha1, padtmp, sizeof(padtmp)))
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return 0;
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if (!SHA1_Final(sha1tmp, sha1))
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return 0;
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/* Reinitialise context */
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if (!SHA1_Init(sha1))
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return 0;
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if (SHA1_Update(sha1, ms, mslen) <= 0)
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return 0;
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/* Set padtmp to pad_2 value */
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memset(padtmp, 0x5c, sizeof(padtmp));
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if (!SHA1_Update(sha1, padtmp, sizeof(padtmp)))
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return 0;
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if (!SHA1_Update(sha1, sha1tmp, sizeof(sha1tmp)))
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return 0;
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/* Now when ctx is finalised it will return the SSL v3 hash value */
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OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
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return 1;
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}
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