diff options
Diffstat (limited to 'crypt/sha512.c')
| -rw-r--r-- | crypt/sha512.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/crypt/sha512.c b/crypt/sha512.c deleted file mode 100644 index ceabad1bf7..0000000000 --- a/crypt/sha512.c +++ /dev/null @@ -1,221 +0,0 @@ -/* Functions to compute SHA512 message digest of files or memory blocks. - according to the definition of SHA512 in FIPS 180-2. - Copyright (C) 2007-2023 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 - <https://www.gnu.org/licenses/>. */ - - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <endian.h> -#include <stdlib.h> -#include <string.h> -#include <stdint.h> -#include <sys/types.h> - -#include "sha512.h" - -#if __BYTE_ORDER == __LITTLE_ENDIAN -# ifdef _LIBC -# include <byteswap.h> -# define SWAP(n) bswap_64 (n) -# else -# define SWAP(n) \ - (((n) << 56) \ - | (((n) & 0xff00) << 40) \ - | (((n) & 0xff0000) << 24) \ - | (((n) & 0xff000000) << 8) \ - | (((n) >> 8) & 0xff000000) \ - | (((n) >> 24) & 0xff0000) \ - | (((n) >> 40) & 0xff00) \ - | ((n) >> 56)) -# endif -#else -# define SWAP(n) (n) -#endif - - -/* This array contains the bytes used to pad the buffer to the next - 64-byte boundary. (FIPS 180-2:5.1.2) */ -static const unsigned char fillbuf[128] = { 0x80, 0 /* , 0, 0, ... */ }; - - -/* Constants for SHA512 from FIPS 180-2:4.2.3. */ -static const uint64_t K[80] = - { - UINT64_C (0x428a2f98d728ae22), UINT64_C (0x7137449123ef65cd), - UINT64_C (0xb5c0fbcfec4d3b2f), UINT64_C (0xe9b5dba58189dbbc), - UINT64_C (0x3956c25bf348b538), UINT64_C (0x59f111f1b605d019), - UINT64_C (0x923f82a4af194f9b), UINT64_C (0xab1c5ed5da6d8118), - UINT64_C (0xd807aa98a3030242), UINT64_C (0x12835b0145706fbe), - UINT64_C (0x243185be4ee4b28c), UINT64_C (0x550c7dc3d5ffb4e2), - UINT64_C (0x72be5d74f27b896f), UINT64_C (0x80deb1fe3b1696b1), - UINT64_C (0x9bdc06a725c71235), UINT64_C (0xc19bf174cf692694), - UINT64_C (0xe49b69c19ef14ad2), UINT64_C (0xefbe4786384f25e3), - UINT64_C (0x0fc19dc68b8cd5b5), UINT64_C (0x240ca1cc77ac9c65), - UINT64_C (0x2de92c6f592b0275), UINT64_C (0x4a7484aa6ea6e483), - UINT64_C (0x5cb0a9dcbd41fbd4), UINT64_C (0x76f988da831153b5), - UINT64_C (0x983e5152ee66dfab), UINT64_C (0xa831c66d2db43210), - UINT64_C (0xb00327c898fb213f), UINT64_C (0xbf597fc7beef0ee4), - UINT64_C (0xc6e00bf33da88fc2), UINT64_C (0xd5a79147930aa725), - UINT64_C (0x06ca6351e003826f), UINT64_C (0x142929670a0e6e70), - UINT64_C (0x27b70a8546d22ffc), UINT64_C (0x2e1b21385c26c926), - UINT64_C (0x4d2c6dfc5ac42aed), UINT64_C (0x53380d139d95b3df), - UINT64_C (0x650a73548baf63de), UINT64_C (0x766a0abb3c77b2a8), - UINT64_C (0x81c2c92e47edaee6), UINT64_C (0x92722c851482353b), - UINT64_C (0xa2bfe8a14cf10364), UINT64_C (0xa81a664bbc423001), - UINT64_C (0xc24b8b70d0f89791), UINT64_C (0xc76c51a30654be30), - UINT64_C (0xd192e819d6ef5218), UINT64_C (0xd69906245565a910), - UINT64_C (0xf40e35855771202a), UINT64_C (0x106aa07032bbd1b8), - UINT64_C (0x19a4c116b8d2d0c8), UINT64_C (0x1e376c085141ab53), - UINT64_C (0x2748774cdf8eeb99), UINT64_C (0x34b0bcb5e19b48a8), - UINT64_C (0x391c0cb3c5c95a63), UINT64_C (0x4ed8aa4ae3418acb), - UINT64_C (0x5b9cca4f7763e373), UINT64_C (0x682e6ff3d6b2b8a3), - UINT64_C (0x748f82ee5defb2fc), UINT64_C (0x78a5636f43172f60), - UINT64_C (0x84c87814a1f0ab72), UINT64_C (0x8cc702081a6439ec), - UINT64_C (0x90befffa23631e28), UINT64_C (0xa4506cebde82bde9), - UINT64_C (0xbef9a3f7b2c67915), UINT64_C (0xc67178f2e372532b), - UINT64_C (0xca273eceea26619c), UINT64_C (0xd186b8c721c0c207), - UINT64_C (0xeada7dd6cde0eb1e), UINT64_C (0xf57d4f7fee6ed178), - UINT64_C (0x06f067aa72176fba), UINT64_C (0x0a637dc5a2c898a6), - UINT64_C (0x113f9804bef90dae), UINT64_C (0x1b710b35131c471b), - UINT64_C (0x28db77f523047d84), UINT64_C (0x32caab7b40c72493), - UINT64_C (0x3c9ebe0a15c9bebc), UINT64_C (0x431d67c49c100d4c), - UINT64_C (0x4cc5d4becb3e42b6), UINT64_C (0x597f299cfc657e2a), - UINT64_C (0x5fcb6fab3ad6faec), UINT64_C (0x6c44198c4a475817) - }; - -void __sha512_process_block (const void *buffer, size_t len, - struct sha512_ctx *ctx); - -/* Initialize structure containing state of computation. - (FIPS 180-2:5.3.3) */ -void -__sha512_init_ctx (struct sha512_ctx *ctx) -{ - ctx->H[0] = UINT64_C (0x6a09e667f3bcc908); - ctx->H[1] = UINT64_C (0xbb67ae8584caa73b); - ctx->H[2] = UINT64_C (0x3c6ef372fe94f82b); - ctx->H[3] = UINT64_C (0xa54ff53a5f1d36f1); - ctx->H[4] = UINT64_C (0x510e527fade682d1); - ctx->H[5] = UINT64_C (0x9b05688c2b3e6c1f); - ctx->H[6] = UINT64_C (0x1f83d9abfb41bd6b); - ctx->H[7] = UINT64_C (0x5be0cd19137e2179); - - ctx->total[0] = ctx->total[1] = 0; - ctx->buflen = 0; -} - - -/* Process the remaining bytes in the internal buffer and the usual - prolog according to the standard and write the result to RESBUF. - - IMPORTANT: On some systems it is required that RESBUF is correctly - aligned for a 32 bits value. */ -void * -__sha512_finish_ctx (struct sha512_ctx *ctx, void *resbuf) -{ - /* Take yet unprocessed bytes into account. */ - uint64_t bytes = ctx->buflen; - size_t pad; - - /* Now count remaining bytes. */ -#ifdef USE_TOTAL128 - ctx->total128 += bytes; -#else - ctx->total[TOTAL128_low] += bytes; - if (ctx->total[TOTAL128_low] < bytes) - ++ctx->total[TOTAL128_high]; -#endif - - pad = bytes >= 112 ? 128 + 112 - bytes : 112 - bytes; - memcpy (&ctx->buffer[bytes], fillbuf, pad); - - /* Put the 128-bit file length in *bits* at the end of the buffer. */ - ctx->buffer64[(bytes + pad + 8) / 8] = SWAP (ctx->total[TOTAL128_low] << 3); - ctx->buffer64[(bytes + pad) / 8] = SWAP ((ctx->total[TOTAL128_high] << 3) - | (ctx->total[TOTAL128_low] >> 61)); - - /* Process last bytes. */ - __sha512_process_block (ctx->buffer, bytes + pad + 16, ctx); - - /* Put result from CTX in first 64 bytes following RESBUF. */ - for (unsigned int i = 0; i < 8; ++i) - ((uint64_t *) resbuf)[i] = SWAP (ctx->H[i]); - - return resbuf; -} - - -void -__sha512_process_bytes (const void *buffer, size_t len, struct sha512_ctx *ctx) -{ - /* When we already have some bits in our internal buffer concatenate - both inputs first. */ - if (ctx->buflen != 0) - { - size_t left_over = ctx->buflen; - size_t add = 256 - left_over > len ? len : 256 - left_over; - - memcpy (&ctx->buffer[left_over], buffer, add); - ctx->buflen += add; - - if (ctx->buflen > 128) - { - __sha512_process_block (ctx->buffer, ctx->buflen & ~127, ctx); - - ctx->buflen &= 127; - /* The regions in the following copy operation cannot overlap. */ - memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~127], - ctx->buflen); - } - - buffer = (const char *) buffer + add; - len -= add; - } - - /* Process available complete blocks. */ - if (len >= 128) - { - while (len > 128) - { - __sha512_process_block (memcpy (ctx->buffer, buffer, 128), 128, - ctx); - buffer = (const char *) buffer + 128; - len -= 128; - } - } - - /* Move remaining bytes into internal buffer. */ - if (len > 0) - { - size_t left_over = ctx->buflen; - - memcpy (&ctx->buffer[left_over], buffer, len); - left_over += len; - if (left_over >= 128) - { - __sha512_process_block (ctx->buffer, 128, ctx); - left_over -= 128; - memcpy (ctx->buffer, &ctx->buffer[128], left_over); - } - ctx->buflen = left_over; - } -} - -#include <sha512-block.c> |