2 * FIPS 180-2 SHA-224/256/384/512 implementation
3 * Last update: 02/02/2007
4 * Issue date: 04/30/2005
6 * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #define SHA224_DIGEST_SIZE ( 224 / 8)
42 #define SHA256_DIGEST_SIZE ( 256 / 8)
43 #define SHA384_DIGEST_SIZE ( 384 / 8)
44 #define SHA512_DIGEST_SIZE ( 512 / 8)
46 #define SHA256_BLOCK_SIZE ( 512 / 8)
47 #define SHA512_BLOCK_SIZE (1024 / 8)
48 #define SHA384_BLOCK_SIZE SHA512_BLOCK_SIZE
49 #define SHA224_BLOCK_SIZE SHA256_BLOCK_SIZE
58 unsigned char block[2 * SHA256_BLOCK_SIZE];
65 unsigned char block[2 * SHA512_BLOCK_SIZE];
69 typedef sha512_ctx sha384_ctx;
70 typedef sha256_ctx sha224_ctx;
72 void sha224_init(sha224_ctx *ctx);
73 void sha224_update(sha224_ctx *ctx, const unsigned char *message,
75 void sha224_final(sha224_ctx *ctx, unsigned char *digest);
76 void sha224(const unsigned char *message, unsigned int len,
77 unsigned char *digest);
79 void sha256_init(sha256_ctx * ctx);
80 void sha256_update(sha256_ctx *ctx, const unsigned char *message,
82 void sha256_final(sha256_ctx *ctx, unsigned char *digest);
83 void sha256(const unsigned char *message, unsigned int len,
84 unsigned char *digest);
86 void sha384_init(sha384_ctx *ctx);
87 void sha384_update(sha384_ctx *ctx, const unsigned char *message,
89 void sha384_final(sha384_ctx *ctx, unsigned char *digest);
90 void sha384(const unsigned char *message, unsigned int len,
91 unsigned char *digest);
93 void sha512_init(sha512_ctx *ctx);
94 void sha512_update(sha512_ctx *ctx, const unsigned char *message,
96 void sha512_final(sha512_ctx *ctx, unsigned char *digest);
97 void sha512(const unsigned char *message, unsigned int len,
98 unsigned char *digest);
104 /* implement the openssl fall back */
105 typedef sha256_ctx SHA256_CTX;
106 #define SHA256_Init(ctx) sha256_init(ctx)
107 #define SHA256_Update(ctx, msg, len) sha256_update(ctx, (const unsigned char *)(msg), len)
108 #define SHA256_Final(digest, ctx) sha256_final(ctx, digest)
110 typedef sha512_ctx SHA512_CTX;
111 #define SHA512_Init(ctx) sha512_init(ctx)
112 #define SHA512_Update(ctx, msg, len) sha512_update(ctx, (const unsigned char *)(msg), len)
113 #define SHA512_Final(digest, ctx) sha512_final(ctx, digest)
115 #endif /* HAVE_SHA2 */