gnulib: lib/md5.c annotate

annotate lib/md5.c @ 37245:135e82dafbea

md5, sha1, sha256, sha512: use openssl routines if available --with-openssl the libcrypto md5, sha1, sha224, sha256, sha384, sha256 routines will be used if available, requiring apps to link @LIB_CRYPTO@ * lib/gl_openssl.h: Provide wrappers for specified openssl hash. * m4/gl-openssl.m4 (gl_CRYPTO_CHECK): New function to lookup libcrypto in the standard system location. * m4/sha1.m4: Call gl_CRYPTO_CHECK() for SHA1. * m4/sha256.m4: Likewise with SHA256. * m4/sha512.m4: Likewise with SHA512. * m4/md5.m4: Likewise with MD5. * m4/gc.m4: Ensure @LIB_CRYPTO@ set for tests. * lib/sha1.h: Include wrappers if HAVE_OPENSSL_SHA1. * lib/sha256.h: Likewise with SHA256. * lib/sha512.h: Likewise with SHA512. * lib/md5.h: Likewise with MD5. * lib/sha1.c: Exlude functionality if HAVE_OPENSSL_SHA1. * lib/sha256.c: Likewise with SHA256. * lib/sha512.c: Likewise with SHA512. * lib/md5.c: Likewise with MD5. * modules/crypto/sha1 (Link:): Add the new optional lib. (Depends-on:): Add dependency on extern-inline. * modules/crypto/sha256: Likewise. * modules/crypto/sha512: Likewise. * modules/crypto/md5: Likewise. * modules/crypto/sha1-tests: Reference the lib here too. * modules/crypto/md5-tests: Likewise. * modules/crypto/gc-des-tests: Likewise. * modules/crypto/gc-hmac-md5-tests: Likewise. * modules/crypto/gc-hmac-sha1-tests: Likewise. * modules/crypto/gc-hmac-sha256-tests: Likewise. * modules/crypto/gc-hmac-sha512-tests: Likewise. * modules/crypto/gc-md5-tests: Likewise. * modules/crypto/gc-pbkdf2-sha1-tests: Likewise. * modules/crypto/gc-sha1-tests: Likewise. * modules/crypto/gc-tests: Likewise. * modules/crypto/hmac-md5-tests: Likewise. * modules/crypto/hmac-sha1-tests: Likewise. * modules/crypto/hmac-sha256-tests: Likewise. * modules/crypto/hmac-sha512-tests: Likewise.

author	Pádraig Brady <P@draigBrady.com>
date	Sat, 30 Nov 2013 05:19:32 +0000
parents	c741bc27922a
children	344018b6e5d7

rev	line source
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	1 /* Functions to compute MD5 message digest of files or memory blocks.
20446 d574f1d1bb2a Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20437 diff changeset	2 according to the definition of MD5 in RFC 1321 from April 1992.
36940 c741bc27922a maint: update all copyright year number ranges Eric Blake <eblake@redhat.com> parents: 36874 diff changeset	3 Copyright (C) 1995-1997, 1999-2001, 2005-2006, 2008-2013 Free Software
33770 c67e5eb9825a maint: update almost all copyright ranges to include 2011 Jim Meyering <meyering@redhat.com> parents: 32250 diff changeset	4 Foundation, Inc.
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	5 This file is part of the GNU C Library.
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	6
20462 b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	7 This program is free software; you can redistribute it and/or modify it
b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	8 under the terms of the GNU General Public License as published by the
b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	9 Free Software Foundation; either version 2, or (at your option) any
b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	10 later version.
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	11
20462 b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	12 This program is distributed in the hope that it will be useful,
20446 d574f1d1bb2a Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20437 diff changeset	13 but WITHOUT ANY WARRANTY; without even the implied warranty of
20462 b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	15 GNU General Public License for more details.
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	16
20462 b126f393a8f8 update copyright Jim Meyering <jim@meyering.net> parents: 20446 diff changeset	17 You should have received a copy of the GNU General Public License
36057 81b1562e3d8b maint: replace FSF snail-mail addresses with URLs Paul Eggert <eggert@cs.ucla.edu> parents: 35892 diff changeset	18 along with this program; if not, see <http://www.gnu.org/licenses/>. */
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	19
20446 d574f1d1bb2a Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20437 diff changeset	20 /* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	21
26993 8aa31e5d3ec4 * _fpending.c: Include <config.h> unconditionally, since we no Paul Eggert <eggert@cs.ucla.edu> parents: 26244 diff changeset	22 #include <config.h>
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	23
37245 135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	24 #if HAVE_OPENSSL_MD5
135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	25 # define GL_OPENSSL_INLINE _GL_EXTERN_INLINE
135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	26 #endif
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	27 #include "md5.h"
62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	28
35688 5fe530331127 crypto libraries: use stdalign Paul Eggert <eggert@cs.ucla.edu> parents: 33770 diff changeset	29 #include <stdalign.h>
5fe530331127 crypto libraries: use stdalign Paul Eggert <eggert@cs.ucla.edu> parents: 33770 diff changeset	30 #include <stdint.h>
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	31 #include <stdlib.h>
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	32 #include <string.h>
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	33 #include <sys/types.h>
20158 f7cbb8cbd711 [memcpy]: Define to bcopy if needed. Jim Meyering <jim@meyering.net> parents: 20156 diff changeset	34
25010 d8d4ae78a2ab error.c, md5.c, regex.c: Use '#if USE_UNLOCKED_IO' instead of Simon Josefsson <simon@josefsson.org> parents: 25009 diff changeset	35 #if USE_UNLOCKED_IO
25009 ea3c229c77ea Remove dependencies on unlocked-io. Paul Eggert <eggert@cs.ucla.edu> parents: 24850 diff changeset	36 # include "unlocked-io.h"
ea3c229c77ea Remove dependencies on unlocked-io. Paul Eggert <eggert@cs.ucla.edu> parents: 24850 diff changeset	37 #endif
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	38
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	39 #ifdef _LIBC
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	40 # include <endian.h>
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	41 # if __BYTE_ORDER == __BIG_ENDIAN
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	42 # define WORDS_BIGENDIAN 1
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	43 # endif
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	44 /* We need to keep the namespace clean so define the MD5 function
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	45 protected using leading __ . */
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	46 # define md5_init_ctx __md5_init_ctx
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	47 # define md5_process_block __md5_process_block
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	48 # define md5_process_bytes __md5_process_bytes
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	49 # define md5_finish_ctx __md5_finish_ctx
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	50 # define md5_read_ctx __md5_read_ctx
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	51 # define md5_stream __md5_stream
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	52 # define md5_buffer __md5_buffer
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	53 #endif
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	54
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	55 #ifdef WORDS_BIGENDIAN
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	56 # define SWAP(n) \
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	57 (((n) << 24) \| (((n) & 0xff00) << 8) \| (((n) >> 8) & 0xff00) \| ((n) >> 24))
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	58 #else
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	59 # define SWAP(n) (n)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	60 #endif
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	61
31889 59a9e6ad38f8 digests, copy-file: increase the IO buffer size from 4KiB to 32KiB Pádraig Brady <P@draigBrady.com> parents: 29487 diff changeset	62 #define BLOCKSIZE 32768
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	63 #if BLOCKSIZE % 64 != 0
25913 299e806d4eb9 Merge glibc and coreutils changes into gnulib, plus a few Paul Eggert <eggert@cs.ucla.edu> parents: 25539 diff changeset	64 # error "invalid BLOCKSIZE"
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	65 #endif
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	66
37245 135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	67 #if ! HAVE_OPENSSL_MD5
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	68 /* This array contains the bytes used to pad the buffer to the next
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	69 64-byte boundary. (RFC 1321, 3.1: Step 1) */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	70 static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	71
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	72
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	73 /* Initialize structure containing state of computation.
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	74 (RFC 1321, 3.3: Step 3) */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	75 void
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	76 md5_init_ctx (struct md5_ctx *ctx)
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	77 {
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	78 ctx->A = 0x67452301;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	79 ctx->B = 0xefcdab89;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	80 ctx->C = 0x98badcfe;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	81 ctx->D = 0x10325476;
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	82
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	83 ctx->total[0] = ctx->total[1] = 0;
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	84 ctx->buflen = 0;
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	85 }
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	86
29348 e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	87 /* Copy the 4 byte value from v into the memory location pointed to by *cp,
e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	88 If your architecture allows unaligned access this is equivalent to
e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	89 * (uint32_t ) cp = v /
36874 024e48bc0b1d arctwo, md4, md5, sha1, sha256, sha512: no 'static inline' Paul Eggert <eggert@cs.ucla.edu> parents: 36551 diff changeset	90 static void
29348 e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	91 set_uint32 (char *cp, uint32_t v)
e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	92 {
29353 f9475e9874b4 Prefer "sizeof v" over the equivalent "4". Jim Meyering <meyering@redhat.com> parents: 29348 diff changeset	93 memcpy (cp, &v, sizeof v);
29348 e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	94 }
20446 d574f1d1bb2a Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20437 diff changeset	95
29348 e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	96 /* Put result from CTX in first 16 bytes following RESBUF. The result
e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	97 must be in little endian byte order. */
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	98 void *
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	99 md5_read_ctx (const struct md5_ctx ctx, void resbuf)
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	100 {
29348 e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	101 char *r = resbuf;
29357 e7c097072524 Use "sizeof VAR", rather than a literal "4". Jim Meyering <meyering@redhat.com> parents: 29353 diff changeset	102 set_uint32 (r + 0 * sizeof ctx->A, SWAP (ctx->A));
e7c097072524 Use "sizeof VAR", rather than a literal "4". Jim Meyering <meyering@redhat.com> parents: 29353 diff changeset	103 set_uint32 (r + 1 * sizeof ctx->B, SWAP (ctx->B));
e7c097072524 Use "sizeof VAR", rather than a literal "4". Jim Meyering <meyering@redhat.com> parents: 29353 diff changeset	104 set_uint32 (r + 2 * sizeof ctx->C, SWAP (ctx->C));
e7c097072524 Use "sizeof VAR", rather than a literal "4". Jim Meyering <meyering@redhat.com> parents: 29353 diff changeset	105 set_uint32 (r + 3 * sizeof ctx->D, SWAP (ctx->D));
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	106
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	107 return resbuf;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	108 }
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	109
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	110 /* Process the remaining bytes in the internal buffer and the usual
29348 e97e8d74a4cc md5: adapt alignment constraint fix from sha1. Simon Josefsson <simon@josefsson.org> parents: 26993 diff changeset	111 prolog according to the standard and write the result to RESBUF. */
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	112 void *
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	113 md5_finish_ctx (struct md5_ctx ctx, void resbuf)
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	114 {
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	115 /* Take yet unprocessed bytes into account. */
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	116 uint32_t bytes = ctx->buflen;
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	117 size_t size = (bytes < 56) ? 64 / 4 : 64 * 2 / 4;
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	118
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	119 /* Now count remaining bytes. */
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	120 ctx->total[0] += bytes;
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	121 if (ctx->total[0] < bytes)
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	122 ++ctx->total[1];
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	123
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	124 /* Put the 64-bit file length in bits at the end of the buffer. */
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	125 ctx->buffer[size - 2] = SWAP (ctx->total[0] << 3);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	126 ctx->buffer[size - 1] = SWAP ((ctx->total[1] << 3) \| (ctx->total[0] >> 29));
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	127
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	128 memcpy (&((char ) ctx->buffer)[bytes], fillbuf, (size - 2) 4 - bytes);
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	129
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	130 /* Process last bytes. */
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	131 md5_process_block (ctx->buffer, size * 4, ctx);
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	132
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	133 return md5_read_ctx (ctx, resbuf);
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	134 }
37245 135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	135 #endif
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	136
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	137 /* Compute MD5 message digest for bytes read from STREAM. The
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	138 resulting message digest number will be written into the 16 bytes
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	139 beginning at RESBLOCK. */
20156 78ac7698b8c0 (md5_stream): Check for read failure and return Jim Meyering <jim@meyering.net> parents: 20155 diff changeset	140 int
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	141 md5_stream (FILE stream, void resblock)
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	142 {
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	143 struct md5_ctx ctx;
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	144 size_t sum;
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	145
31889 59a9e6ad38f8 digests, copy-file: increase the IO buffer size from 4KiB to 32KiB Pádraig Brady <P@draigBrady.com> parents: 29487 diff changeset	146 char *buffer = malloc (BLOCKSIZE + 72);
59a9e6ad38f8 digests, copy-file: increase the IO buffer size from 4KiB to 32KiB Pádraig Brady <P@draigBrady.com> parents: 29487 diff changeset	147 if (!buffer)
59a9e6ad38f8 digests, copy-file: increase the IO buffer size from 4KiB to 32KiB Pádraig Brady <P@draigBrady.com> parents: 29487 diff changeset	148 return 1;
59a9e6ad38f8 digests, copy-file: increase the IO buffer size from 4KiB to 32KiB Pádraig Brady <P@draigBrady.com> parents: 29487 diff changeset	149
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	150 /* Initialize the computation context. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	151 md5_init_ctx (&ctx);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	152
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	153 /* Iterate over full file contents. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	154 while (1)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	155 {
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	156 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	157 computation function processes the whole buffer so that with the
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	158 next round of the loop another block can be read. */
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	159 size_t n;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	160 sum = 0;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	161
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	162 /* Read block. Take care for partial reads. */
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	163 while (1)
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	164 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	165 n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	166
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	167 sum += n;
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	168
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	169 if (sum == BLOCKSIZE)
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	170 break;
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	171
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	172 if (n == 0)
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	173 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	174 /* Check for the error flag IFF N == 0, so that we don't
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	175 exit the loop after a partial read due to e.g., EAGAIN
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	176 or EWOULDBLOCK. */
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	177 if (ferror (stream))
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	178 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	179 free (buffer);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	180 return 1;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	181 }
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	182 goto process_partial_block;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	183 }
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	184
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	185 /* We've read at least one byte, so ignore errors. But always
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	186 check for EOF, since feof may be true even though N > 0.
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	187 Otherwise, we could end up calling fread after EOF. */
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	188 if (feof (stream))
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	189 goto process_partial_block;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	190 }
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	191
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	192 /* Process buffer with BLOCKSIZE bytes. Note that
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	193 BLOCKSIZE % 64 == 0
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	194 */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	195 md5_process_block (buffer, BLOCKSIZE, &ctx);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	196 }
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	197
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	198 process_partial_block:
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	199
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	200 /* Process any remaining bytes. */
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	201 if (sum > 0)
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	202 md5_process_bytes (buffer, sum, &ctx);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	203
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	204 /* Construct result in desired memory. */
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	205 md5_finish_ctx (&ctx, resblock);
31889 59a9e6ad38f8 digests, copy-file: increase the IO buffer size from 4KiB to 32KiB Pádraig Brady <P@draigBrady.com> parents: 29487 diff changeset	206 free (buffer);
20156 78ac7698b8c0 (md5_stream): Check for read failure and return Jim Meyering <jim@meyering.net> parents: 20155 diff changeset	207 return 0;
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	208 }
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	209
37245 135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	210 #if ! HAVE_OPENSSL_MD5
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	211 /* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	212 result is always in little endian byte order, so that a byte-wise
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	213 output yields to the wanted ASCII representation of the message
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	214 digest. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	215 void *
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	216 md5_buffer (const char buffer, size_t len, void resblock)
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	217 {
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	218 struct md5_ctx ctx;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	219
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	220 /* Initialize the computation context. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	221 md5_init_ctx (&ctx);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	222
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	223 /* Process whole buffer but last len % 64 bytes. */
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	224 md5_process_bytes (buffer, len, &ctx);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	225
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	226 /* Put result in desired memory area. */
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	227 return md5_finish_ctx (&ctx, resblock);
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	228 }
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	229
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	230
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	231 void
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	232 md5_process_bytes (const void buffer, size_t len, struct md5_ctx ctx)
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	233 {
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	234 /* When we already have some bits in our internal buffer concatenate
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	235 both inputs first. */
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	236 if (ctx->buflen != 0)
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	237 {
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	238 size_t left_over = ctx->buflen;
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	239 size_t add = 128 - left_over > len ? len : 128 - left_over;
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	240
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	241 memcpy (&((char *) ctx->buffer)[left_over], buffer, add);
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	242 ctx->buflen += add;
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	243
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	244 if (ctx->buflen > 64)
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	245 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	246 md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
29487 6852b588fd27 Undo last change. Jim Meyering <meyering@redhat.com> parents: 29486 diff changeset	247
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	248 ctx->buflen &= 63;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	249 /* The regions in the following copy operation cannot overlap. */
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	250 memcpy (ctx->buffer,
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	251 &((char *) ctx->buffer)[(left_over + add) & ~63],
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	252 ctx->buflen);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	253 }
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	254
20437 e1d5a000ad28 (md5_process_bytes): Cast void* pointer to char* before Jim Meyering <jim@meyering.net> parents: 20436 diff changeset	255 buffer = (const char *) buffer + add;
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	256 len -= add;
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	257 }
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	258
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	259 /* Process available complete blocks. */
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	260 if (len >= 64)
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	261 {
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	262 #if !_STRING_ARCH_unaligned
35688 5fe530331127 crypto libraries: use stdalign Paul Eggert <eggert@cs.ucla.edu> parents: 33770 diff changeset	263 # define UNALIGNED_P(p) ((uintptr_t) (p) % alignof (uint32_t) != 0)
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	264 if (UNALIGNED_P (buffer))
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	265 while (len > 64)
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	266 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	267 md5_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	268 buffer = (const char *) buffer + 64;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	269 len -= 64;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	270 }
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	271 else
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	272 #endif
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	273 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	274 md5_process_block (buffer, len & ~63, ctx);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	275 buffer = (const char *) buffer + (len & ~63);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	276 len &= 63;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	277 }
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	278 }
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	279
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	280 /* Move remaining bytes in internal buffer. */
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	281 if (len > 0)
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	282 {
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	283 size_t left_over = ctx->buflen;
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	284
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	285 memcpy (&((char *) ctx->buffer)[left_over], buffer, len);
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	286 left_over += len;
680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	287 if (left_over >= 64)
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	288 {
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	289 md5_process_block (ctx->buffer, 64, ctx);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	290 left_over -= 64;
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	291 memcpy (ctx->buffer, &ctx->buffer[16], left_over);
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	292 }
24237 680ae920cc2e Merge from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 23309 diff changeset	293 ctx->buflen = left_over;
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	294 }
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	295 }
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	296
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	297
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	298 /* These are the four functions used in the four steps of the MD5 algorithm
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	299 and defined in the RFC 1321. The first function is a little bit optimized
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	300 (as found in Colin Plumbs public domain implementation). */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	301 /* #define FF(b, c, d) ((b & c) \| (~b & d)) */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	302 #define FF(b, c, d) (d ^ (b & (c ^ d)))
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	303 #define FG(b, c, d) FF (d, b, c)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	304 #define FH(b, c, d) (b ^ c ^ d)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	305 #define FI(b, c, d) (c ^ (b \| ~d))
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	306
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	307 /* Process LEN bytes of BUFFER, accumulating context into CTX.
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	308 It is assumed that LEN % 64 == 0. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	309
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	310 void
24361 62d1c8035baf Remove K&R cruft. Paul Eggert <eggert@cs.ucla.edu> parents: 24237 diff changeset	311 md5_process_block (const void buffer, size_t len, struct md5_ctx ctx)
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	312 {
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	313 uint32_t correct_words[16];
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	314 const uint32_t *words = buffer;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	315 size_t nwords = len / sizeof (uint32_t);
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	316 const uint32_t *endp = words + nwords;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	317 uint32_t A = ctx->A;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	318 uint32_t B = ctx->B;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	319 uint32_t C = ctx->C;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	320 uint32_t D = ctx->D;
36551 e44534a69277 crypto: fix bug in large buffer handling Paul Eggert <eggert@cs.ucla.edu> parents: 36057 diff changeset	321 uint32_t lolen = len;
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	322
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	323 /* First increment the byte count. RFC 1321 specifies the possible
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	324 length of the file up to 2^64 bits. Here we only compute the
4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	325 number of bytes. Do a double word increment. */
36551 e44534a69277 crypto: fix bug in large buffer handling Paul Eggert <eggert@cs.ucla.edu> parents: 36057 diff changeset	326 ctx->total[0] += lolen;
e44534a69277 crypto: fix bug in large buffer handling Paul Eggert <eggert@cs.ucla.edu> parents: 36057 diff changeset	327 ctx->total[1] += (len >> 31 >> 1) + (ctx->total[0] < lolen);
20436 4514ff2c2840 Update from GNU libc. Jim Meyering <jim@meyering.net> parents: 20423 diff changeset	328
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	329 /* Process all bytes in the buffer with 64 bytes in each round of
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	330 the loop. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	331 while (words < endp)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	332 {
26072 56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	333 uint32_t *cwp = correct_words;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	334 uint32_t A_save = A;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	335 uint32_t B_save = B;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	336 uint32_t C_save = C;
56e6483a97ab Separate sha1 from md5. Use stdint.h in both modules. Simon Josefsson <simon@josefsson.org> parents: 25913 diff changeset	337 uint32_t D_save = D;
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	338
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	339 /* First round: using the given function, the context and a constant
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	340 the next context is computed. Because the algorithms processing
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	341 unit is a 32-bit word and it is determined to work on words in
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	342 little endian byte order we perhaps have to change the byte order
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	343 before the computation. To reduce the work for the next steps
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	344 we store the swapped words in the array CORRECT_WORDS. */
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	345
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	346 #define OP(a, b, c, d, s, T) \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	347 do \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	348 { \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	349 a += FF (b, c, d) + (cwp++ = SWAP (words)) + T; \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	350 ++words; \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	351 CYCLIC (a, s); \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	352 a += b; \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	353 } \
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	354 while (0)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	355
25913 299e806d4eb9 Merge glibc and coreutils changes into gnulib, plus a few Paul Eggert <eggert@cs.ucla.edu> parents: 25539 diff changeset	356 /* It is unfortunate that C does not provide an operator for
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	357 cyclic rotation. Hope the C compiler is smart enough. */
25913 299e806d4eb9 Merge glibc and coreutils changes into gnulib, plus a few Paul Eggert <eggert@cs.ucla.edu> parents: 25539 diff changeset	358 #define CYCLIC(w, s) (w = (w << s) \| (w >> (32 - s)))
299e806d4eb9 Merge glibc and coreutils changes into gnulib, plus a few Paul Eggert <eggert@cs.ucla.edu> parents: 25539 diff changeset	359
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	360 /* Before we start, one word to the strange constants.
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	361 They are defined in RFC 1321 as
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	362
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	363 T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
25913 299e806d4eb9 Merge glibc and coreutils changes into gnulib, plus a few Paul Eggert <eggert@cs.ucla.edu> parents: 25539 diff changeset	364
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	365 Here is an equivalent invocation using Perl:
25913 299e806d4eb9 Merge glibc and coreutils changes into gnulib, plus a few Paul Eggert <eggert@cs.ucla.edu> parents: 25539 diff changeset	366
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	367 perl -e 'foreach(1..64){printf "0x%08x\n", int (4294967296 * abs (sin $_))}'
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	368 */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	369
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	370 /* Round 1. */
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	371 OP (A, B, C, D, 7, 0xd76aa478);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	372 OP (D, A, B, C, 12, 0xe8c7b756);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	373 OP (C, D, A, B, 17, 0x242070db);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	374 OP (B, C, D, A, 22, 0xc1bdceee);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	375 OP (A, B, C, D, 7, 0xf57c0faf);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	376 OP (D, A, B, C, 12, 0x4787c62a);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	377 OP (C, D, A, B, 17, 0xa8304613);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	378 OP (B, C, D, A, 22, 0xfd469501);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	379 OP (A, B, C, D, 7, 0x698098d8);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	380 OP (D, A, B, C, 12, 0x8b44f7af);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	381 OP (C, D, A, B, 17, 0xffff5bb1);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	382 OP (B, C, D, A, 22, 0x895cd7be);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	383 OP (A, B, C, D, 7, 0x6b901122);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	384 OP (D, A, B, C, 12, 0xfd987193);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	385 OP (C, D, A, B, 17, 0xa679438e);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	386 OP (B, C, D, A, 22, 0x49b40821);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	387
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	388 /* For the second to fourth round we have the possibly swapped words
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	389 in CORRECT_WORDS. Redefine the macro to take an additional first
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	390 argument specifying the function to use. */
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	391 #undef OP
32112 dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	392 #define OP(f, a, b, c, d, k, s, T) \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	393 do \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	394 { \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	395 a += f (b, c, d) + correct_words[k] + T; \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	396 CYCLIC (a, s); \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	397 a += b; \
dc7644a1c024 Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 31889 diff changeset	398 } \
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	399 while (0)
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	400
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	401 /* Round 2. */
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	402 OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	403 OP (FG, D, A, B, C, 6, 9, 0xc040b340);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	404 OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	405 OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	406 OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	407 OP (FG, D, A, B, C, 10, 9, 0x02441453);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	408 OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	409 OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	410 OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	411 OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	412 OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	413 OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	414 OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	415 OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	416 OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	417 OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	418
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	419 /* Round 3. */
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	420 OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	421 OP (FH, D, A, B, C, 8, 11, 0x8771f681);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	422 OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	423 OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	424 OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	425 OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	426 OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	427 OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	428 OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	429 OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	430 OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	431 OP (FH, B, C, D, A, 6, 23, 0x04881d05);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	432 OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	433 OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	434 OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	435 OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	436
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	437 /* Round 4. */
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	438 OP (FI, A, B, C, D, 0, 6, 0xf4292244);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	439 OP (FI, D, A, B, C, 7, 10, 0x432aff97);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	440 OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	441 OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	442 OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	443 OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	444 OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	445 OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	446 OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	447 OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	448 OP (FI, C, D, A, B, 6, 15, 0xa3014314);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	449 OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	450 OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	451 OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
26124 bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	452 OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
bdc480a5cac5 * md5.h, md5.c: Simplify buffer handling visavi alignment, Simon Josefsson <simon@josefsson.org> parents: 26072 diff changeset	453 OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
20155 d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	454
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	455 /* Add the starting values of the context. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	456 A += A_save;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	457 B += B_save;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	458 C += C_save;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	459 D += D_save;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	460 }
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	461
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	462 /* Put checksum in context given as argument. */
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	463 ctx->A = A;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	464 ctx->B = B;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	465 ctx->C = C;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	466 ctx->D = D;
d675da5f4b9d . Jim Meyering <jim@meyering.net> parents: diff changeset	467 }
37245 135e82dafbea md5, sha1, sha256, sha512: use openssl routines if available Pádraig Brady <P@draigBrady.com> parents: 36940 diff changeset	468 #endif

Mercurial > gnulib

annotate lib/md5.c @ 37245:135e82dafbea