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Improved md5() implementation (Solar Designer)
This commit is contained in:
Dmitry Stogov
parent
54680a30fc
commit
3ea9c13c4b
1
NEWS
1
NEWS
@ -102,6 +102,7 @@ PHP NEWS
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. Added support for OpenSSL digest functions
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. Added support for OpenSSL cipher functions
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. Added access to internal values of DSA, RSA and DH keys
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- Imoroved md5() implementation (Solar Designer, Dmitry)
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- Fixed html_entity_decode() incorrectly converting numeric html entities
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to different characters with cp1251 and cp866. (Scott)
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@ -442,8 +442,8 @@ const unsigned char block[64];
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/* MD4 */
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#define MD4_F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
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#define MD4_G(x,y,z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
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#define MD4_F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
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#define MD4_G(x,y,z) (((x) & ((y) | (z))) | ((y) & (z)))
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#define MD4_H(x,y,z) ((x) ^ (y) ^ (z))
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#define ROTL32(s,v) (((v) << (s)) | ((v) >> (32 - (s))))
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@ -518,8 +518,23 @@ static void MD4Transform(php_hash_uint32 state[4], const unsigned char block[64]
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state[3] += d;
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}
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/* {{{ PHP_MD4Init
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* MD4 initialization. Begins an MD4 operation, writing a new context.
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*/
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PHP_HASH_API void PHP_MD4Init(PHP_MD4_CTX * context)
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{
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context->count[0] = context->count[1] = 0;
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/* Load magic initialization constants.
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*/
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context->state[0] = 0x67452301;
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context->state[1] = 0xefcdab89;
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context->state[2] = 0x98badcfe;
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context->state[3] = 0x10325476;
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}
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/* }}} */
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/* {{{ PHP_MD4Update
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MD4 block update operation. Continues an MD5 message-digest
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MD4 block update operation. Continues an MD4 message-digest
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operation, processing another message block, and updating the
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context.
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*/
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@ -81,7 +81,7 @@ typedef struct {
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unsigned char buffer[64];
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} PHP_MD4_CTX;
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#define PHP_MD4Init PHP_MD5Init
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PHP_HASH_API void PHP_MD4Init(PHP_MD4_CTX *);
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PHP_HASH_API void PHP_MD4Update(PHP_MD4_CTX *context, const unsigned char *, unsigned int);
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PHP_HASH_API void PHP_MD4Final(unsigned char[16], PHP_MD4_CTX *);
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@ -12,26 +12,24 @@
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Lachlan Roche |
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| Author: Alexander Peslyak (Solar Designer) <solar at openwall.com> |
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| Lachlan Roche |
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| Alessandro Astarita <aleast@capri.it> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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/*
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* md5.c - Copyright 1997 Lachlan Roche
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* md5_file() added by Alessandro Astarita <aleast@capri.it>
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*/
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#include "php.h"
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#include "md5.h"
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PHPAPI void make_digest(char *md5str, unsigned char *digest)
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PHPAPI void make_digest(char *md5str, const unsigned char *digest) /* {{{ */
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{
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make_digest_ex(md5str, digest, 16);
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}
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/* }}} */
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PHPAPI void make_digest_ex(char *md5str, unsigned char *digest, int len)
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PHPAPI void make_digest_ex(char *md5str, const unsigned char *digest, int len) /* {{{ */
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{
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static const char hexits[17] = "0123456789abcdef";
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int i;
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@ -42,6 +40,7 @@ PHPAPI void make_digest_ex(char *md5str, unsigned char *digest, int len)
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}
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md5str[len * 2] = '\0';
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}
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/* }}} */
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/* {{{ proto string md5(string str, [ bool raw_output])
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Calculate the md5 hash of a string */
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@ -119,322 +118,272 @@ PHP_NAMED_FUNCTION(php_if_md5_file)
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/* }}} */
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/*
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* The remaining code is the reference MD5 code (md5c.c) from rfc1321
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*/
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/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
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* This is an OpenSSL-compatible implementation of the RSA Data Security,
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* Inc. MD5 Message-Digest Algorithm (RFC 1321).
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*
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* Written by Solar Designer <solar at openwall.com> in 2001, and placed
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* in the public domain. There's absolutely no warranty.
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*
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* This differs from Colin Plumb's older public domain implementation in
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* that no 32-bit integer data type is required, there's no compile-time
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* endianness configuration, and the function prototypes match OpenSSL's.
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* The primary goals are portability and ease of use.
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*
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* This implementation is meant to be fast, but not as fast as possible.
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* Some known optimizations are not included to reduce source code size
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* and avoid compile-time configuration.
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*/
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/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
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rights reserved.
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License to copy and use this software is granted provided that it
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is identified as the "RSA Data Security, Inc. MD5 Message-Digest
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Algorithm" in all material mentioning or referencing this software
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or this function.
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License is also granted to make and use derivative works provided
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that such works are identified as "derived from the RSA Data
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Security, Inc. MD5 Message-Digest Algorithm" in all material
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mentioning or referencing the derived work.
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RSA Data Security, Inc. makes no representations concerning either
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the merchantability of this software or the suitability of this
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software for any particular purpose. It is provided "as is"
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without express or implied warranty of any kind.
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These notices must be retained in any copies of any part of this
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documentation and/or software.
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*/
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/* Constants for MD5Transform routine.
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*/
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#define S11 7
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#define S12 12
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#define S13 17
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#define S14 22
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#define S21 5
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#define S22 9
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#define S23 14
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#define S24 20
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#define S31 4
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#define S32 11
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#define S33 16
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#define S34 23
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#define S41 6
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#define S42 10
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#define S43 15
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#define S44 21
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static void MD5Transform(php_uint32[4], const unsigned char[64]);
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static void Encode(unsigned char *, php_uint32 *, unsigned int);
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static void Decode(php_uint32 *, const unsigned char *, unsigned int);
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static unsigned char PADDING[64] =
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{
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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/* F, G, H and I are basic MD5 functions.
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*/
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#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
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#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
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#define H(x, y, z) ((x) ^ (y) ^ (z))
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#define I(x, y, z) ((y) ^ ((x) | (~z)))
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/* ROTATE_LEFT rotates x left n bits.
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*/
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#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
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/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
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Rotation is separate from addition to prevent recomputation.
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*/
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#define FF(a, b, c, d, x, s, ac) { \
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(a) += F ((b), (c), (d)) + (x) + (php_uint32)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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#define GG(a, b, c, d, x, s, ac) { \
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(a) += G ((b), (c), (d)) + (x) + (php_uint32)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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#define HH(a, b, c, d, x, s, ac) { \
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(a) += H ((b), (c), (d)) + (x) + (php_uint32)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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#define II(a, b, c, d, x, s, ac) { \
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(a) += I ((b), (c), (d)) + (x) + (php_uint32)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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/* {{{ PHP_MD5Init
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* MD5 initialization. Begins an MD5 operation, writing a new context.
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*/
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PHPAPI void PHP_MD5Init(PHP_MD5_CTX * context)
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{
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context->count[0] = context->count[1] = 0;
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/* Load magic initialization constants.
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*/
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context->state[0] = 0x67452301;
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context->state[1] = 0xefcdab89;
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context->state[2] = 0x98badcfe;
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context->state[3] = 0x10325476;
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}
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/* }}} */
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/* {{{ PHP_MD5Update
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MD5 block update operation. Continues an MD5 message-digest
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operation, processing another message block, and updating the
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context.
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*/
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PHPAPI void PHP_MD5Update(PHP_MD5_CTX * context, const unsigned char *input,
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unsigned int inputLen)
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{
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unsigned int i, index, partLen;
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/* Compute number of bytes mod 64 */
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index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
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/* Update number of bits */
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if ((context->count[0] += ((php_uint32) inputLen << 3))
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< ((php_uint32) inputLen << 3))
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context->count[1]++;
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context->count[1] += ((php_uint32) inputLen >> 29);
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partLen = 64 - index;
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/* Transform as many times as possible.
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*/
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if (inputLen >= partLen) {
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memcpy
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((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
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MD5Transform(context->state, context->buffer);
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for (i = partLen; i + 63 < inputLen; i += 64)
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MD5Transform(context->state, &input[i]);
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index = 0;
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} else
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i = 0;
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/* Buffer remaining input */
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memcpy
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((unsigned char*) & context->buffer[index], (unsigned char*) & input[i],
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inputLen - i);
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}
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/* }}} */
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/* {{{ PHP_MD5Final
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MD5 finalization. Ends an MD5 message-digest operation, writing the
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the message digest and zeroizing the context.
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*/
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PHPAPI void PHP_MD5Final(unsigned char digest[16], PHP_MD5_CTX * context)
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{
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unsigned char bits[8];
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unsigned int index, padLen;
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/* Save number of bits */
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Encode(bits, context->count, 8);
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/* Pad out to 56 mod 64.
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*/
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index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
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padLen = (index < 56) ? (56 - index) : (120 - index);
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PHP_MD5Update(context, PADDING, padLen);
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/* Append length (before padding) */
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PHP_MD5Update(context, bits, 8);
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/* Store state in digest */
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Encode(digest, context->state, 16);
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/* Zeroize sensitive information.
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*/
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memset((unsigned char*) context, 0, sizeof(*context));
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}
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/* }}} */
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/* {{{ MD5Transform
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* MD5 basic transformation. Transforms state based on block.
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*/
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static void MD5Transform(state, block)
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php_uint32 state[4];
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const unsigned char block[64];
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{
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php_uint32 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
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Decode(x, block, 64);
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/* Round 1 */
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FF(a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */
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FF(d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */
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FF(c, d, a, b, x[2], S13, 0x242070db); /* 3 */
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FF(b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */
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FF(a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */
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FF(d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */
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FF(c, d, a, b, x[6], S13, 0xa8304613); /* 7 */
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FF(b, c, d, a, x[7], S14, 0xfd469501); /* 8 */
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FF(a, b, c, d, x[8], S11, 0x698098d8); /* 9 */
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FF(d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */
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FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
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FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
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FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
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FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
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FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
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FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
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/* Round 2 */
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GG(a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */
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GG(d, a, b, c, x[6], S22, 0xc040b340); /* 18 */
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GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
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GG(b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */
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GG(a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */
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GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */
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GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
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GG(b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */
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GG(a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */
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GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
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GG(c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */
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GG(b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */
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GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
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GG(d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */
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GG(c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */
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GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
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/* Round 3 */
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HH(a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */
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HH(d, a, b, c, x[8], S32, 0x8771f681); /* 34 */
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HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
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HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
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HH(a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */
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HH(d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */
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HH(c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */
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HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
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HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
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HH(d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */
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HH(c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */
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HH(b, c, d, a, x[6], S34, 0x4881d05); /* 44 */
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HH(a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */
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HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
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HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
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HH(b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */
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/* Round 4 */
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II(a, b, c, d, x[0], S41, 0xf4292244); /* 49 */
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II(d, a, b, c, x[7], S42, 0x432aff97); /* 50 */
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II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
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II(b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */
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II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
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II(d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */
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II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
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II(b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */
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II(a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */
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II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
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II(c, d, a, b, x[6], S43, 0xa3014314); /* 59 */
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II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
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II(a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */
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II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
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II(c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */
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II(b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */
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state[0] += a;
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state[1] += b;
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state[2] += c;
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state[3] += d;
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/* Zeroize sensitive information. */
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memset((unsigned char*) x, 0, sizeof(x));
|
||||
}
|
||||
/* }}} */
|
||||
|
||||
/* {{{ Encode
|
||||
Encodes input (php_uint32) into output (unsigned char). Assumes len is
|
||||
a multiple of 4.
|
||||
*/
|
||||
static void Encode(output, input, len)
|
||||
unsigned char *output;
|
||||
php_uint32 *input;
|
||||
unsigned int len;
|
||||
{
|
||||
unsigned int i, j;
|
||||
|
||||
for (i = 0, j = 0; j < len; i++, j += 4) {
|
||||
output[j] = (unsigned char) (input[i] & 0xff);
|
||||
output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff);
|
||||
output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff);
|
||||
output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff);
|
||||
}
|
||||
}
|
||||
/* }}} */
|
||||
|
||||
/* {{{ Decode
|
||||
Decodes input (unsigned char) into output (php_uint32). Assumes len is
|
||||
a multiple of 4.
|
||||
*/
|
||||
static void Decode(output, input, len)
|
||||
php_uint32 *output;
|
||||
const unsigned char *input;
|
||||
unsigned int len;
|
||||
{
|
||||
unsigned int i, j;
|
||||
|
||||
for (i = 0, j = 0; j < len; i++, j += 4)
|
||||
output[i] = ((php_uint32) input[j]) | (((php_uint32) input[j + 1]) << 8) |
|
||||
(((php_uint32) input[j + 2]) << 16) | (((php_uint32) input[j + 3]) << 24);
|
||||
}
|
||||
/* }}} */
|
||||
#include <string.h>
|
||||
|
||||
/*
|
||||
* Local variables:
|
||||
* tab-width: 4
|
||||
* c-basic-offset: 4
|
||||
* End:
|
||||
* vim600: sw=4 ts=4 fdm=marker
|
||||
* vim<600: sw=4 ts=4
|
||||
* The basic MD5 functions.
|
||||
*
|
||||
* F and G are optimized compared to their RFC 1321 definitions for
|
||||
* architectures that lack an AND-NOT instruction, just like in Colin Plumb's
|
||||
* implementation.
|
||||
*/
|
||||
#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
|
||||
#define G(x, y, z) ((y) ^ ((z) & ((x) ^ (y))))
|
||||
#define H(x, y, z) ((x) ^ (y) ^ (z))
|
||||
#define I(x, y, z) ((y) ^ ((x) | ~(z)))
|
||||
|
||||
/*
|
||||
* The MD5 transformation for all four rounds.
|
||||
*/
|
||||
#define STEP(f, a, b, c, d, x, t, s) \
|
||||
(a) += f((b), (c), (d)) + (x) + (t); \
|
||||
(a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
|
||||
(a) += (b);
|
||||
|
||||
/*
|
||||
* SET reads 4 input bytes in little-endian byte order and stores them
|
||||
* in a properly aligned word in host byte order.
|
||||
*
|
||||
* The check for little-endian architectures that tolerate unaligned
|
||||
* memory accesses is just an optimization. Nothing will break if it
|
||||
* doesn't work.
|
||||
*/
|
||||
#if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
|
||||
# define SET(n) \
|
||||
(*(php_uint32 *)&ptr[(n) * 4])
|
||||
# define GET(n) \
|
||||
SET(n)
|
||||
#else
|
||||
# define SET(n) \
|
||||
(ctx->block[(n)] = \
|
||||
(php_uint32)ptr[(n) * 4] | \
|
||||
((php_uint32)ptr[(n) * 4 + 1] << 8) | \
|
||||
((php_uint32)ptr[(n) * 4 + 2] << 16) | \
|
||||
((php_uint32)ptr[(n) * 4 + 3] << 24))
|
||||
# define GET(n) \
|
||||
(ctx->block[(n)])
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This processes one or more 64-byte data blocks, but does NOT update
|
||||
* the bit counters. There are no alignment requirements.
|
||||
*/
|
||||
static const void *body(PHP_MD5_CTX *ctx, const void *data, size_t size)
|
||||
{
|
||||
const unsigned char *ptr;
|
||||
php_uint32 a, b, c, d;
|
||||
php_uint32 saved_a, saved_b, saved_c, saved_d;
|
||||
|
||||
ptr = data;
|
||||
|
||||
a = ctx->a;
|
||||
b = ctx->b;
|
||||
c = ctx->c;
|
||||
d = ctx->d;
|
||||
|
||||
do {
|
||||
saved_a = a;
|
||||
saved_b = b;
|
||||
saved_c = c;
|
||||
saved_d = d;
|
||||
|
||||
/* Round 1 */
|
||||
STEP(F, a, b, c, d, SET(0), 0xd76aa478, 7)
|
||||
STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)
|
||||
STEP(F, c, d, a, b, SET(2), 0x242070db, 17)
|
||||
STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)
|
||||
STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)
|
||||
STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)
|
||||
STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)
|
||||
STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)
|
||||
STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)
|
||||
STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)
|
||||
STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)
|
||||
STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)
|
||||
STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)
|
||||
STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)
|
||||
STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)
|
||||
STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)
|
||||
|
||||
/* Round 2 */
|
||||
STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)
|
||||
STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)
|
||||
STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)
|
||||
STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)
|
||||
STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)
|
||||
STEP(G, d, a, b, c, GET(10), 0x02441453, 9)
|
||||
STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)
|
||||
STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)
|
||||
STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)
|
||||
STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)
|
||||
STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)
|
||||
STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)
|
||||
STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)
|
||||
STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)
|
||||
STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)
|
||||
STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)
|
||||
|
||||
/* Round 3 */
|
||||
STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
|
||||
STEP(H, d, a, b, c, GET(8), 0x8771f681, 11)
|
||||
STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
|
||||
STEP(H, b, c, d, a, GET(14), 0xfde5380c, 23)
|
||||
STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
|
||||
STEP(H, d, a, b, c, GET(4), 0x4bdecfa9, 11)
|
||||
STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
|
||||
STEP(H, b, c, d, a, GET(10), 0xbebfbc70, 23)
|
||||
STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
|
||||
STEP(H, d, a, b, c, GET(0), 0xeaa127fa, 11)
|
||||
STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
|
||||
STEP(H, b, c, d, a, GET(6), 0x04881d05, 23)
|
||||
STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
|
||||
STEP(H, d, a, b, c, GET(12), 0xe6db99e5, 11)
|
||||
STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
|
||||
STEP(H, b, c, d, a, GET(2), 0xc4ac5665, 23)
|
||||
|
||||
/* Round 4 */
|
||||
STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
|
||||
STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)
|
||||
STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)
|
||||
STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)
|
||||
STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)
|
||||
STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)
|
||||
STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)
|
||||
STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)
|
||||
STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)
|
||||
STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)
|
||||
STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)
|
||||
STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)
|
||||
STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)
|
||||
STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)
|
||||
STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)
|
||||
STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)
|
||||
|
||||
a += saved_a;
|
||||
b += saved_b;
|
||||
c += saved_c;
|
||||
d += saved_d;
|
||||
|
||||
ptr += 64;
|
||||
} while (size -= 64);
|
||||
|
||||
ctx->a = a;
|
||||
ctx->b = b;
|
||||
ctx->c = c;
|
||||
ctx->d = d;
|
||||
|
||||
return ptr;
|
||||
}
|
||||
|
||||
PHPAPI void PHP_MD5Init(PHP_MD5_CTX *ctx)
|
||||
{
|
||||
ctx->a = 0x67452301;
|
||||
ctx->b = 0xefcdab89;
|
||||
ctx->c = 0x98badcfe;
|
||||
ctx->d = 0x10325476;
|
||||
|
||||
ctx->lo = 0;
|
||||
ctx->hi = 0;
|
||||
}
|
||||
|
||||
PHPAPI void PHP_MD5Update(PHP_MD5_CTX *ctx, const void *data, size_t size)
|
||||
{
|
||||
php_uint32 saved_lo;
|
||||
php_uint32 used, free;
|
||||
|
||||
saved_lo = ctx->lo;
|
||||
if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo) {
|
||||
ctx->hi++;
|
||||
}
|
||||
ctx->hi += size >> 29;
|
||||
|
||||
used = saved_lo & 0x3f;
|
||||
|
||||
if (used) {
|
||||
free = 64 - used;
|
||||
|
||||
if (size < free) {
|
||||
memcpy(&ctx->buffer[used], data, size);
|
||||
return;
|
||||
}
|
||||
|
||||
memcpy(&ctx->buffer[used], data, free);
|
||||
data = (unsigned char *)data + free;
|
||||
size -= free;
|
||||
body(ctx, ctx->buffer, 64);
|
||||
}
|
||||
|
||||
if (size >= 64) {
|
||||
data = body(ctx, data, size & ~(size_t)0x3f);
|
||||
size &= 0x3f;
|
||||
}
|
||||
|
||||
memcpy(ctx->buffer, data, size);
|
||||
}
|
||||
|
||||
PHPAPI void PHP_MD5Final(unsigned char *result, PHP_MD5_CTX *ctx)
|
||||
{
|
||||
php_uint32 used, free;
|
||||
|
||||
used = ctx->lo & 0x3f;
|
||||
|
||||
ctx->buffer[used++] = 0x80;
|
||||
|
||||
free = 64 - used;
|
||||
|
||||
if (free < 8) {
|
||||
memset(&ctx->buffer[used], 0, free);
|
||||
body(ctx, ctx->buffer, 64);
|
||||
used = 0;
|
||||
free = 64;
|
||||
}
|
||||
|
||||
memset(&ctx->buffer[used], 0, free - 8);
|
||||
|
||||
ctx->lo <<= 3;
|
||||
ctx->buffer[56] = ctx->lo;
|
||||
ctx->buffer[57] = ctx->lo >> 8;
|
||||
ctx->buffer[58] = ctx->lo >> 16;
|
||||
ctx->buffer[59] = ctx->lo >> 24;
|
||||
ctx->buffer[60] = ctx->hi;
|
||||
ctx->buffer[61] = ctx->hi >> 8;
|
||||
ctx->buffer[62] = ctx->hi >> 16;
|
||||
ctx->buffer[63] = ctx->hi >> 24;
|
||||
|
||||
body(ctx, ctx->buffer, 64);
|
||||
|
||||
result[0] = ctx->a;
|
||||
result[1] = ctx->a >> 8;
|
||||
result[2] = ctx->a >> 16;
|
||||
result[3] = ctx->a >> 24;
|
||||
result[4] = ctx->b;
|
||||
result[5] = ctx->b >> 8;
|
||||
result[6] = ctx->b >> 16;
|
||||
result[7] = ctx->b >> 24;
|
||||
result[8] = ctx->c;
|
||||
result[9] = ctx->c >> 8;
|
||||
result[10] = ctx->c >> 16;
|
||||
result[11] = ctx->c >> 24;
|
||||
result[12] = ctx->d;
|
||||
result[13] = ctx->d >> 8;
|
||||
result[14] = ctx->d >> 16;
|
||||
result[15] = ctx->d >> 24;
|
||||
|
||||
memset(ctx, 0, sizeof(*ctx));
|
||||
}
|
||||
|
||||
@ -12,7 +12,8 @@
|
||||
| obtain it through the world-wide-web, please send a note to |
|
||||
| license@php.net so we can mail you a copy immediately. |
|
||||
+----------------------------------------------------------------------+
|
||||
| Author: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
|
||||
| Author: Alexander Peslyak (Solar Designer) <solar at openwall.com> |
|
||||
| Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
|
||||
+----------------------------------------------------------------------+
|
||||
*/
|
||||
|
||||
@ -20,47 +21,35 @@
|
||||
|
||||
#ifndef MD5_H
|
||||
#define MD5_H
|
||||
/* MD5.H - header file for MD5C.C
|
||||
*/
|
||||
|
||||
/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
|
||||
rights reserved.
|
||||
|
||||
License to copy and use this software is granted provided that it
|
||||
is identified as the "RSA Data Security, Inc. MD5 Message-Digest
|
||||
Algorithm" in all material mentioning or referencing this software
|
||||
or this function.
|
||||
|
||||
License is also granted to make and use derivative works provided
|
||||
that such works are identified as "derived from the RSA Data
|
||||
Security, Inc. MD5 Message-Digest Algorithm" in all material
|
||||
mentioning or referencing the derived work.
|
||||
|
||||
RSA Data Security, Inc. makes no representations concerning either
|
||||
the merchantability of this software or the suitability of this
|
||||
software for any particular purpose. It is provided "as is"
|
||||
without express or implied warranty of any kind.
|
||||
|
||||
These notices must be retained in any copies of any part of this
|
||||
documentation and/or software.
|
||||
*/
|
||||
|
||||
#include "ext/standard/basic_functions.h"
|
||||
|
||||
/* MD5 context. */
|
||||
typedef struct {
|
||||
php_uint32 state[4]; /* state (ABCD) */
|
||||
php_uint32 count[2]; /* number of bits, modulo 2^64 (lsb first) */
|
||||
unsigned char buffer[64]; /* input buffer */
|
||||
} PHP_MD5_CTX;
|
||||
|
||||
PHPAPI void make_digest(char *md5str, unsigned char *digest);
|
||||
PHPAPI void make_digest_ex(char *md5str, unsigned char *digest, int len);
|
||||
PHPAPI void PHP_MD5Init(PHP_MD5_CTX *);
|
||||
PHPAPI void PHP_MD5Update(PHP_MD5_CTX *, const unsigned char *, unsigned int);
|
||||
PHPAPI void PHP_MD5Final(unsigned char[16], PHP_MD5_CTX *);
|
||||
PHPAPI void make_digest(char *md5str, const unsigned char *digest);
|
||||
PHPAPI void make_digest_ex(char *md5str, const unsigned char *digest, int len);
|
||||
|
||||
PHP_NAMED_FUNCTION(php_if_md5);
|
||||
PHP_NAMED_FUNCTION(php_if_md5_file);
|
||||
|
||||
#include "ext/standard/basic_functions.h"
|
||||
|
||||
/*
|
||||
* This is an OpenSSL-compatible implementation of the RSA Data Security,
|
||||
* Inc. MD5 Message-Digest Algorithm (RFC 1321).
|
||||
*
|
||||
* Written by Solar Designer <solar at openwall.com> in 2001, and placed
|
||||
* in the public domain. There's absolutely no warranty.
|
||||
*
|
||||
* See md5.c for more information.
|
||||
*/
|
||||
|
||||
/* MD5 context. */
|
||||
typedef struct {
|
||||
php_uint32 lo, hi;
|
||||
php_uint32 a, b, c, d;
|
||||
unsigned char buffer[64];
|
||||
php_uint32 block[16];
|
||||
} PHP_MD5_CTX;
|
||||
|
||||
PHPAPI void PHP_MD5Init(PHP_MD5_CTX *ctx);
|
||||
PHPAPI void PHP_MD5Update(PHP_MD5_CTX *ctx, const void *data, size_t size);
|
||||
PHPAPI void PHP_MD5Final(unsigned char *result, PHP_MD5_CTX *ctx);
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user