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Diffstat (limited to 'REORG.TODO/crypt/sha512.h')
-rw-r--r-- | REORG.TODO/crypt/sha512.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/REORG.TODO/crypt/sha512.h b/REORG.TODO/crypt/sha512.h new file mode 100644 index 0000000000..58aec3decb --- /dev/null +++ b/REORG.TODO/crypt/sha512.h @@ -0,0 +1,72 @@ +/* Declaration of functions and data types used for SHA512 sum computing + library functions. + Copyright (C) 2007-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SHA512_H +#define _SHA512_H 1 + +#include <limits.h> +#include <stdint.h> +#include <stdio.h> +#include <endian.h> +#include <bits/wordsize.h> + + +/* Structure to save state of computation between the single steps. */ +struct sha512_ctx +{ + uint64_t H[8]; + + union + { +#if defined __GNUC__ && __WORDSIZE == 64 +# define USE_TOTAL128 + unsigned int total128 __attribute__ ((__mode__ (TI))); +#endif +#define TOTAL128_low (1 - (BYTE_ORDER == LITTLE_ENDIAN)) +#define TOTAL128_high (BYTE_ORDER == LITTLE_ENDIAN) + uint64_t total[2]; + }; + uint64_t buflen; + union + { + char buffer[256]; + uint64_t buffer64[32]; + }; +}; + +/* Initialize structure containing state of computation. + (FIPS 180-2: 5.3.3) */ +extern void __sha512_init_ctx (struct sha512_ctx *ctx) __THROW; + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is NOT required that LEN is a multiple of 128. */ +extern void __sha512_process_bytes (const void *buffer, size_t len, + struct sha512_ctx *ctx) __THROW; + +/* Process the remaining bytes in the buffer and put result from CTX + in first 64 bytes following RESBUF. + + IMPORTANT: On some systems it is required that RESBUF is correctly + aligned for a 64 bits value. */ +extern void *__sha512_finish_ctx (struct sha512_ctx *ctx, void *resbuf) + __THROW; + +#endif /* sha512.h */ |