155 lines
5.7 KiB
C
155 lines
5.7 KiB
C
/* crypto/sha/sha.h */
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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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*/
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#pragma once
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1))
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#error SHA is disabled.
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#endif
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#if defined(OPENSSL_FIPS)
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#define FIPS_SHA_SIZE_T size_t
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#endif
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/*
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Compat stuff from OpenSSL land
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*/
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/* crypto.h */
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#define fips_md_init(alg) fips_md_init_ctx(alg, alg)
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#define fips_md_init_ctx(alg, cx) int alg##_Init(cx##_CTX *c)
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#define fips_cipher_abort(alg) while (0)
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/*-
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* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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* ! SHA_LONG has to be at least 32 bits wide. If it's wider, then !
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* ! SHA_LONG_LOG2 has to be defined along. !
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* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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*/
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#if defined(__LP32__)
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#define SHA_LONG unsigned long
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#elif defined(__ILP64__)
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#define SHA_LONG unsigned long
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#define SHA_LONG_LOG2 3
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#else
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#define SHA_LONG unsigned int
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#endif
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#define SHA_LBLOCK 16
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#define SHA_CBLOCK \
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(SHA_LBLOCK * 4) /* SHA treats input data as a \
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* contiguous array of 32 bit wide \
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* big-endian values. */
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#define SHA_LAST_BLOCK (SHA_CBLOCK - 8)
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#define SHA_DIGEST_LENGTH 20
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typedef struct SHAstate_st
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{
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SHA_LONG h0, h1, h2, h3, h4;
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SHA_LONG Nl, Nh;
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SHA_LONG data[SHA_LBLOCK];
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unsigned int num;
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} SHA_CTX;
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#define SHA256_CBLOCK \
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(SHA_LBLOCK * 4) /* SHA-256 treats input data as a \
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* contiguous array of 32 bit wide \
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* big-endian values. */
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#define SHA224_DIGEST_LENGTH 28
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#define SHA256_DIGEST_LENGTH 32
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typedef struct SHA256state_st
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{
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SHA_LONG h[8];
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SHA_LONG Nl, Nh;
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SHA_LONG data[SHA_LBLOCK];
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unsigned int num, md_len;
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} SHA256_CTX;
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#ifndef OPENSSL_NO_SHA256
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#ifdef OPENSSL_FIPS
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int private_SHA224_Init(SHA256_CTX *c);
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int private_SHA256_Init(SHA256_CTX *c);
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#endif
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int SHA224_Init(SHA256_CTX *c);
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int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
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int SHA224_Final(unsigned char *md, SHA256_CTX *c);
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unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md);
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int SHA256_Init(SHA256_CTX *c);
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int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
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int SHA256_Final(unsigned char *md, SHA256_CTX *c);
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unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
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void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
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#endif
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#define SHA384_DIGEST_LENGTH 48
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#define SHA512_DIGEST_LENGTH 64
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#ifdef __cplusplus
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}
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#endif
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