mirror of
https://github.com/coreutils/coreutils.git
synced 2024-12-05 07:54:07 +08:00
100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
|
/* Declarations of functions and data types used for SHA512 and SHA384 sum
|
||
|
library functions.
|
||
|
Copyright (C) 2005 Free Software Foundation, Inc.
|
||
|
|
||
|
This program is free software; you can redistribute it and/or modify it
|
||
|
under the terms of the GNU General Public License as published by the
|
||
|
Free Software Foundation; either version 2, or (at your option) any
|
||
|
later version.
|
||
|
|
||
|
This program 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 General Public License for more details.
|
||
|
|
||
|
You should have received a copy of the GNU General Public License
|
||
|
along with this program; if not, write to the Free Software Foundation,
|
||
|
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
|
||
|
|
||
|
#ifndef SHA512_H
|
||
|
# define SHA512_H 1
|
||
|
|
||
|
# include <stdio.h>
|
||
|
|
||
|
# if HAVE_INTTYPES_H
|
||
|
# include <inttypes.h>
|
||
|
# endif
|
||
|
# if HAVE_STDINT_H || _LIBC
|
||
|
# include <stdint.h>
|
||
|
# endif
|
||
|
|
||
|
typedef uint64_t sha512_uint64;
|
||
|
|
||
|
|
||
|
/* Structure to save state of computation between the single steps. */
|
||
|
struct sha512_ctx
|
||
|
{
|
||
|
sha512_uint64 state[8];
|
||
|
|
||
|
sha512_uint64 total[2];
|
||
|
sha512_uint64 buflen;
|
||
|
char buffer[256];
|
||
|
};
|
||
|
|
||
|
|
||
|
/* Initialize structure containing state of computation. */
|
||
|
extern void sha512_init_ctx (struct sha512_ctx *ctx);
|
||
|
extern void sha384_init_ctx (struct sha512_ctx *ctx);
|
||
|
|
||
|
/* 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 necessary that LEN is a multiple of 128!!! */
|
||
|
extern void sha512_process_block (const void *buffer, size_t len,
|
||
|
struct sha512_ctx *ctx);
|
||
|
|
||
|
/* 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);
|
||
|
|
||
|
/* Process the remaining bytes in the buffer and put result from CTX
|
||
|
in first 64 (48) bytes following RESBUF. The result is always in little
|
||
|
endian byte order, so that a byte-wise output yields to the wanted
|
||
|
ASCII representation of the message digest.
|
||
|
|
||
|
IMPORTANT: On some systems it is required that RESBUF be correctly
|
||
|
aligned for a 64 bits value. */
|
||
|
extern void *sha512_finish_ctx (struct sha512_ctx *ctx, void *resbuf);
|
||
|
extern void *sha384_finish_ctx (struct sha512_ctx *ctx, void *resbuf);
|
||
|
|
||
|
|
||
|
/* Put result from CTX in first 64 (48) bytes following RESBUF. The result is
|
||
|
always in little endian byte order, so that a byte-wise output yields
|
||
|
to the wanted ASCII representation of the message digest.
|
||
|
|
||
|
IMPORTANT: On some systems it is required that RESBUF is correctly
|
||
|
aligned for a 32 bits value. */
|
||
|
extern void *sha512_read_ctx (const struct sha512_ctx *ctx, void *resbuf);
|
||
|
extern void *sha384_read_ctx (const struct sha512_ctx *ctx, void *resbuf);
|
||
|
|
||
|
|
||
|
/* Compute SHA512 (SHA384) message digest for bytes read from STREAM. The
|
||
|
resulting message digest number will be written into the 64 (48) bytes
|
||
|
beginning at RESBLOCK. */
|
||
|
extern int sha512_stream (FILE *stream, void *resblock);
|
||
|
extern int sha384_stream (FILE *stream, void *resblock);
|
||
|
|
||
|
/* Compute SHA512 (SHA384) message digest for LEN bytes beginning at BUFFER. The
|
||
|
result is always in little endian byte order, so that a byte-wise
|
||
|
output yields to the wanted ASCII representation of the message
|
||
|
digest. */
|
||
|
extern void *sha512_buffer (const char *buffer, size_t len, void *resblock);
|
||
|
extern void *sha384_buffer (const char *buffer, size_t len, void *resblock);
|
||
|
|
||
|
# define rol64(x,n) ( ((x) << (n)) | ((x) >> (64-(n))) )
|
||
|
|
||
|
#endif
|