Use public domain implementation for MD5 algorithm
The RSA Data Security, Inc. implementation license bears a requirement similar to the old problematic BSD license with advertising clause. Change-Id: I877b71ff0548934b1c4fd87245696f53dedbdf26
This commit is contained in:
Andres Mejia
John Koleszar
parent
900d0548db
commit
1856f2213d
@ -26,21 +26,21 @@ is processed, then U, then V. It is important to honor the image's `stride`
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values.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PROCESS_DX
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unsigned char md5_sum[16];
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md5_ctx_t md5;
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MD5Context md5;
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int i;
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md5_init(&md5);
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MD5Init(&md5);
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for(plane=0; plane < 3; plane++) {
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unsigned char *buf =img->planes[plane];
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for(y=0; y<img->d_h >> (plane?1:0); y++) {
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md5_update(&md5, buf, img->d_w >> (plane?1:0));
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MD5Update(&md5, buf, img->d_w >> (plane?1:0));
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buf += img->stride[plane];
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}
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}
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md5_finalize(&md5, md5_sum);
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MD5Final(md5_sum, &md5);
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for(i=0; i<16; i++)
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fprintf(outfile, "%02x",md5_sum[i]);
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fprintf(outfile, " img-%dx%d-%04d.i420\n", img->d_w, img->d_h,
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8
ivfdec.c
8
ivfdec.c
@ -235,9 +235,9 @@ void *out_open(const char *out_fn, int do_md5)
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if (do_md5)
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{
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#if CONFIG_MD5
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md5_ctx_t *md5_ctx = out = malloc(sizeof(md5_ctx_t));
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MD5Context *md5_ctx = out = malloc(sizeof(MD5Context));
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(void)out_fn;
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md5_init(md5_ctx);
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MD5Init(md5_ctx);
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#endif
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}
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else
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@ -259,7 +259,7 @@ void out_put(void *out, const uint8_t *buf, unsigned int len, int do_md5)
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if (do_md5)
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{
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#if CONFIG_MD5
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md5_update(out, buf, len);
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MD5Update(out, buf, len);
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#endif
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}
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else
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@ -276,7 +276,7 @@ void out_close(void *out, const char *out_fn, int do_md5)
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uint8_t md5[16];
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int i;
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md5_finalize(out, md5);
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MD5Final(md5, out);
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free(out);
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for (i = 0; i < 16; i++)
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478
md5_utils.c
478
md5_utils.c
@ -1,299 +1,253 @@
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/*
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* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
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* This code implements the MD5 message-digest algorithm.
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* The algorithm is due to Ron Rivest. This code was
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* written by Colin Plumb in 1993, no copyright is claimed.
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* This code is in the public domain; do with it what you wish.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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* Equivalent code is available from RSA Data Security, Inc.
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* This code has been tested against that, and is equivalent,
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* except that you don't need to include two pages of legalese
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* with every copy.
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*
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* To compute the message digest of a chunk of bytes, declare an
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* MD5Context structure, pass it to MD5Init, call MD5Update as
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* needed on buffers full of bytes, and then call MD5Final, which
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* will fill a supplied 16-byte array with the digest.
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*
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* Changed so as no longer to depend on Colin Plumb's `usual.h' header
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* definitions
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* - Ian Jackson <ian@chiark.greenend.org.uk>.
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* Still in the public domain.
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*/
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#include <sys/types.h> /* for stupid systems */
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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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#include <string.h> /* for memcpy() */
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#include "md5_utils.h"
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#include <string.h>
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/* Constants for md5_transform 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 md5_transform(uint32_t state[4], const uint8_t block[64]);
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static void Encode(uint8_t *output, const uint32_t *input, unsigned int len);
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static void Decode(uint32_t *output, const uint8_t *input, unsigned int len);
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#define md5_memset memset
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#define md5_memcpy memcpy
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static unsigned char PADDING[64] =
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void
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byteSwap(UWORD32 *buf, unsigned words)
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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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md5byte *p;
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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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/* Only swap bytes for big endian machines */
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int i = 1;
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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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if (*(char *)&i == 1)
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return;
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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) + (uint32_t)(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) + (uint32_t)(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) + (uint32_t)(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) + (uint32_t)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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p = (md5byte *)buf;
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/* MD5 initialization. Begins an MD5 operation, writing a new context.
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*/
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void md5_init(md5_ctx_t *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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/* 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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void md5_update(md5_ctx_t *context, const uint8_t *input, unsigned int input_len)
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{
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unsigned int i, index, part_len;
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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] += ((uint32_t)input_len << 3))
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< ((uint32_t)input_len << 3))
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context->count[1]++;
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context->count[1] += ((uint32_t)input_len >> 29);
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part_len = 64 - index;
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/* Transform as many times as possible. */
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if (input_len >= part_len)
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do
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{
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memcpy(&context->buffer[index], input, part_len);
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md5_transform(context->state, context->buffer);
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for (i = part_len; i + 63 < input_len; i += 64)
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md5_transform(context->state, &input[i]);
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index = 0;
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*buf++ = (UWORD32)((unsigned)p[3] << 8 | p[2]) << 16 |
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((unsigned)p[1] << 8 | p[0]);
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p += 4;
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}
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else
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i = 0;
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/* Buffer remaining input */
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memcpy(&context->buffer[index], &input[i], input_len - i);
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while (--words);
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}
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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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* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
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* initialization constants.
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*/
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void md5_finalize(md5_ctx_t *context, uint8_t digest[16])
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void
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MD5Init(struct MD5Context *ctx)
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{
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unsigned char bits[8];
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unsigned int index, pad_len;
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ctx->buf[0] = 0x67452301;
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ctx->buf[1] = 0xefcdab89;
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ctx->buf[2] = 0x98badcfe;
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ctx->buf[3] = 0x10325476;
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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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pad_len = (index < 56) ? (56 - index) : (120 - index);
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md5_update(context, PADDING, pad_len);
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/* Append length (before padding) */
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md5_update(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(context, 0, sizeof(*context));
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ctx->bytes[0] = 0;
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ctx->bytes[1] = 0;
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}
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/* MD5 basic transformation. Transforms state based on block.
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/*
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* Update context to reflect the concatenation of another buffer full
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* of bytes.
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*/
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static void md5_transform(uint32_t state[4], const uint8_t block[64])
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void
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MD5Update(struct MD5Context *ctx, md5byte const *buf, unsigned len)
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{
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uint32_t a = state[0], b = state[1], c = state[2], d = state[3], x[16];
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UWORD32 t;
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Decode(x, block, 64);
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/* Update byte count */
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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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t = ctx->bytes[0];
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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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if ((ctx->bytes[0] = t + len) < t)
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ctx->bytes[1]++; /* Carry from low to high */
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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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t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */
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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.
|
||||
*/
|
||||
memset(x, 0, sizeof(x));
|
||||
}
|
||||
|
||||
/* Encodes input (uint32_t) into output (unsigned char). Assumes len is
|
||||
a multiple of 4.
|
||||
*/
|
||||
static void Encode(uint8_t *output, const uint32_t *input, unsigned int len)
|
||||
{
|
||||
unsigned int i, j;
|
||||
|
||||
for (i = 0, j = 0; j < len; i++, j += 4)
|
||||
if (t > len)
|
||||
{
|
||||
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);
|
||||
memcpy((md5byte *)ctx->in + 64 - t, buf, len);
|
||||
return;
|
||||
}
|
||||
|
||||
/* First chunk is an odd size */
|
||||
memcpy((md5byte *)ctx->in + 64 - t, buf, t);
|
||||
byteSwap(ctx->in, 16);
|
||||
MD5Transform(ctx->buf, ctx->in);
|
||||
buf += t;
|
||||
len -= t;
|
||||
|
||||
/* Process data in 64-byte chunks */
|
||||
while (len >= 64)
|
||||
{
|
||||
memcpy(ctx->in, buf, 64);
|
||||
byteSwap(ctx->in, 16);
|
||||
MD5Transform(ctx->buf, ctx->in);
|
||||
buf += 64;
|
||||
len -= 64;
|
||||
}
|
||||
|
||||
/* Handle any remaining bytes of data. */
|
||||
memcpy(ctx->in, buf, len);
|
||||
}
|
||||
|
||||
/* Decodes input (unsigned char) into output (uint32_t). Assumes len is
|
||||
a multiple of 4.
|
||||
/*
|
||||
* Final wrapup - pad to 64-byte boundary with the bit pattern
|
||||
* 1 0* (64-bit count of bits processed, MSB-first)
|
||||
*/
|
||||
static void Decode(uint32_t *output, const uint8_t *input, unsigned int len)
|
||||
void
|
||||
MD5Final(md5byte digest[16], struct MD5Context *ctx)
|
||||
{
|
||||
unsigned int i, j;
|
||||
int count = ctx->bytes[0] & 0x3f; /* Number of bytes in ctx->in */
|
||||
md5byte *p = (md5byte *)ctx->in + count;
|
||||
|
||||
for (i = 0, j = 0; j < len; i++, j += 4)
|
||||
output[i] = ((uint32_t)input[j]) | (((uint32_t)input[j+1]) << 8) |
|
||||
(((uint32_t)input[j+2]) << 16) | (((uint32_t)input[j+3]) << 24);
|
||||
/* Set the first char of padding to 0x80. There is always room. */
|
||||
*p++ = 0x80;
|
||||
|
||||
/* Bytes of padding needed to make 56 bytes (-8..55) */
|
||||
count = 56 - 1 - count;
|
||||
|
||||
if (count < 0) /* Padding forces an extra block */
|
||||
{
|
||||
memset(p, 0, count + 8);
|
||||
byteSwap(ctx->in, 16);
|
||||
MD5Transform(ctx->buf, ctx->in);
|
||||
p = (md5byte *)ctx->in;
|
||||
count = 56;
|
||||
}
|
||||
|
||||
memset(p, 0, count);
|
||||
byteSwap(ctx->in, 14);
|
||||
|
||||
/* Append length in bits and transform */
|
||||
ctx->in[14] = ctx->bytes[0] << 3;
|
||||
ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29;
|
||||
MD5Transform(ctx->buf, ctx->in);
|
||||
|
||||
byteSwap(ctx->buf, 4);
|
||||
memcpy(digest, ctx->buf, 16);
|
||||
memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
|
||||
}
|
||||
|
||||
#ifndef ASM_MD5
|
||||
|
||||
/* The four core functions - F1 is optimized somewhat */
|
||||
|
||||
/* #define F1(x, y, z) (x & y | ~x & z) */
|
||||
#define F1(x, y, z) (z ^ (x & (y ^ z)))
|
||||
#define F2(x, y, z) F1(z, x, y)
|
||||
#define F3(x, y, z) (x ^ y ^ z)
|
||||
#define F4(x, y, z) (y ^ (x | ~z))
|
||||
|
||||
/* This is the central step in the MD5 algorithm. */
|
||||
#define MD5STEP(f,w,x,y,z,in,s) \
|
||||
(w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x)
|
||||
|
||||
/*
|
||||
* The core of the MD5 algorithm, this alters an existing MD5 hash to
|
||||
* reflect the addition of 16 longwords of new data. MD5Update blocks
|
||||
* the data and converts bytes into longwords for this routine.
|
||||
*/
|
||||
void
|
||||
MD5Transform(UWORD32 buf[4], UWORD32 const in[16])
|
||||
{
|
||||
register UWORD32 a, b, c, d;
|
||||
|
||||
a = buf[0];
|
||||
b = buf[1];
|
||||
c = buf[2];
|
||||
d = buf[3];
|
||||
|
||||
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
|
||||
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
|
||||
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
|
||||
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
|
||||
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
|
||||
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
|
||||
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
|
||||
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
|
||||
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
|
||||
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
|
||||
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
|
||||
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
|
||||
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
|
||||
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
|
||||
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
|
||||
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
|
||||
|
||||
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
|
||||
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
|
||||
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
|
||||
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
|
||||
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
|
||||
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
|
||||
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
|
||||
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
|
||||
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
|
||||
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
|
||||
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
|
||||
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
|
||||
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
|
||||
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
|
||||
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
|
||||
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
|
||||
|
||||
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
|
||||
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
|
||||
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
|
||||
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
|
||||
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
|
||||
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
|
||||
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
|
||||
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
|
||||
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
|
||||
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
|
||||
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
|
||||
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
|
||||
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
|
||||
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
|
||||
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
|
||||
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
|
||||
|
||||
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
|
||||
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
|
||||
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
|
||||
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
|
||||
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
|
||||
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
|
||||
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
|
||||
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
|
||||
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
|
||||
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
|
||||
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
|
||||
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
|
||||
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
|
||||
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
|
||||
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
|
||||
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
|
||||
|
||||
buf[0] += a;
|
||||
buf[1] += b;
|
||||
buf[2] += c;
|
||||
buf[3] += d;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
71
md5_utils.h
71
md5_utils.h
@ -1,45 +1,42 @@
|
||||
/*
|
||||
* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
|
||||
* This is the header file for the MD5 message-digest algorithm.
|
||||
* The algorithm is due to Ron Rivest. This code was
|
||||
* written by Colin Plumb in 1993, no copyright is claimed.
|
||||
* This code is in the public domain; do with it what you wish.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
* Equivalent code is available from RSA Data Security, Inc.
|
||||
* This code has been tested against that, and is equivalent,
|
||||
* except that you don't need to include two pages of legalese
|
||||
* with every copy.
|
||||
*
|
||||
* To compute the message digest of a chunk of bytes, declare an
|
||||
* MD5Context structure, pass it to MD5Init, call MD5Update as
|
||||
* needed on buffers full of bytes, and then call MD5Final, which
|
||||
* will fill a supplied 16-byte array with the digest.
|
||||
*
|
||||
* Changed so as no longer to depend on Colin Plumb's `usual.h'
|
||||
* header definitions
|
||||
* - Ian Jackson <ian@chiark.greenend.org.uk>.
|
||||
* Still in the public domain.
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
|
||||
rights reserved.
|
||||
#ifndef MD5_H
|
||||
#define MD5_H
|
||||
|
||||
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.
|
||||
#define md5byte unsigned char
|
||||
#define UWORD32 unsigned int
|
||||
|
||||
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 "vpx/vpx_integer.h"
|
||||
|
||||
/* MD5 context. */
|
||||
typedef struct
|
||||
typedef struct MD5Context MD5Context;
|
||||
struct MD5Context
|
||||
{
|
||||
uint32_t state[4]; /* state (ABCD) */
|
||||
uint32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */
|
||||
uint8_t buffer[64]; /* input buffer */
|
||||
} md5_ctx_t;
|
||||
UWORD32 buf[4];
|
||||
UWORD32 bytes[2];
|
||||
UWORD32 in[16];
|
||||
};
|
||||
|
||||
void md5_init(md5_ctx_t *ctx);
|
||||
void md5_update(md5_ctx_t *ctx, const uint8_t *buf, unsigned int len);
|
||||
void md5_finalize(md5_ctx_t *ctx, uint8_t md5[16]);
|
||||
void MD5Init(struct MD5Context *context);
|
||||
void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len);
|
||||
void MD5Final(unsigned char digest[16], struct MD5Context *context);
|
||||
void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]);
|
||||
|
||||
#endif /* !MD5_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user