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Diffstat (limited to '')
-rw-r--r-- | src/lib/sha2.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/lib/sha2.h b/src/lib/sha2.h new file mode 100644 index 0000000..8c893eb --- /dev/null +++ b/src/lib/sha2.h @@ -0,0 +1,89 @@ +/* + * FIPS 180-2 SHA-224/256/384/512 implementation + * Last update: 02/02/2007 + * Issue date: 04/30/2005 + * + * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef SHA2_H +#define SHA2_H + +#include "hash-method.h" +#include "sha-common.h" + +struct sha256_ctx { + size_t tot_len; + size_t len; + unsigned char block[2 * SHA256_BLOCK_SIZE]; + uint32_t h[8]; +}; + +struct sha384_ctx { + size_t tot_len; + size_t len; + unsigned char block[2 * SHA384_BLOCK_SIZE]; + uint64_t h[8]; +}; + +struct sha512_ctx { + size_t tot_len; + size_t len; + unsigned char block[2 * SHA512_BLOCK_SIZE]; + uint64_t h[8]; +}; + +void sha256_init(struct sha256_ctx *ctx); +void sha256_loop(struct sha256_ctx *ctx, const void *data, size_t len); +void sha256_result(struct sha256_ctx *ctx, + unsigned char digest[STATIC_ARRAY SHA256_RESULTLEN]); + +void sha256_get_digest(const void *data, size_t size, + unsigned char digest[STATIC_ARRAY SHA256_RESULTLEN]); + +void sha384_init(struct sha384_ctx *ctx); +void sha384_loop(struct sha384_ctx *ctx, const void *data, size_t len); +void sha384_result(struct sha384_ctx *ctx, + unsigned char digest[STATIC_ARRAY SHA384_RESULTLEN]); + +void sha384_get_digest(const void *data, size_t size, + unsigned char digest[STATIC_ARRAY SHA384_RESULTLEN]); + +void sha512_init(struct sha512_ctx *ctx); +void sha512_loop(struct sha512_ctx *ctx, const void *data, size_t len); +void sha512_result(struct sha512_ctx *ctx, + unsigned char digest[STATIC_ARRAY SHA512_RESULTLEN]); + +void sha512_get_digest(const void *data, size_t size, + unsigned char digest[STATIC_ARRAY SHA512_RESULTLEN]); + +extern const struct hash_method hash_method_sha256; +extern const struct hash_method hash_method_sha384; +extern const struct hash_method hash_method_sha512; + +#endif /* !SHA2_H */ |