projects / thirdparty / glibc.git / blame
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| c3266dc0 UD |
1 | /* Declaration of functions and data types used for SHA512 sum computing |
| 2 | library functions. | |
| 04277e02 | 3 | Copyright (C) 2007-2019 Free Software Foundation, Inc. |
| c3266dc0 UD |
4 | This file is part of the GNU C Library. |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Lesser General Public | |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 10 | ||
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public | |
| 59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| c3266dc0 UD |
19 | |
| 20 | #ifndef _SHA512_H | |
| 21 | #define _SHA512_H 1 | |
| 22 | ||
| 23 | #include <limits.h> | |
| 24 | #include <stdint.h> | |
| 25 | #include <stdio.h> | |
| feea4948 UD |
26 | #include <endian.h> |
| 27 | #include <bits/wordsize.h> | |
| c3266dc0 UD |
28 | |
| 29 | ||
| 30 | /* Structure to save state of computation between the single steps. */ | |
| 31 | struct sha512_ctx | |
| 32 | { | |
| 33 | uint64_t H[8]; | |
| 34 | ||
| fcfc776b UD |
35 | union |
| 36 | { | |
| 37 | #if defined __GNUC__ && __WORDSIZE == 64 | |
| 38 | # define USE_TOTAL128 | |
| 39 | unsigned int total128 __attribute__ ((__mode__ (TI))); | |
| feea4948 | 40 | #endif |
| d5032639 UD |
41 | #define TOTAL128_low (1 - (BYTE_ORDER == LITTLE_ENDIAN)) |
| 42 | #define TOTAL128_high (BYTE_ORDER == LITTLE_ENDIAN) | |
| fcfc776b UD |
43 | uint64_t total[2]; |
| 44 | }; | |
| c3266dc0 | 45 | uint64_t buflen; |
| 7dc6bd90 UD |
46 | union |
| 47 | { | |
| 48 | char buffer[256]; | |
| 49 | uint64_t buffer64[32]; | |
| 50 | }; | |
| c3266dc0 UD |
51 | }; |
| 52 | ||
| 53 | /* Initialize structure containing state of computation. | |
| 54 | (FIPS 180-2: 5.3.3) */ | |
| 55 | extern void __sha512_init_ctx (struct sha512_ctx *ctx) __THROW; | |
| 56 | ||
| 57 | /* Starting with the result of former calls of this function (or the | |
| 58 | initialization function update the context for the next LEN bytes | |
| 59 | starting at BUFFER. | |
| 60 | It is NOT required that LEN is a multiple of 128. */ | |
| 61 | extern void __sha512_process_bytes (const void *buffer, size_t len, | |
| 62 | struct sha512_ctx *ctx) __THROW; | |
| 63 | ||
| 64 | /* Process the remaining bytes in the buffer and put result from CTX | |
| 65 | in first 64 bytes following RESBUF. | |
| 66 | ||
| 67 | IMPORTANT: On some systems it is required that RESBUF is correctly | |
| 68 | aligned for a 64 bits value. */ | |
| 69 | extern void *__sha512_finish_ctx (struct sha512_ctx *ctx, void *resbuf) | |
| 70 | __THROW; | |
| 71 | ||
| 72 | #endif /* sha512.h */ |