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Unified Diff: base/security/md5.c

Issue 624713003: Keep only base/extractor.[cc|h]. (Closed) Base URL: https://chromium.googlesource.com/external/omaha.git@master
Patch Set: Created 6 years, 2 months ago
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Index: base/security/md5.c
diff --git a/base/security/md5.c b/base/security/md5.c
deleted file mode 100644
index 7f3b7c1a27d725a3fe5143097e26a578b7b40bef..0000000000000000000000000000000000000000
--- a/base/security/md5.c
+++ /dev/null
@@ -1,171 +0,0 @@
-// Copyright 2007-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// Optimized for minimal code size.
-
-#include "md5.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-
-#define rol(bits, value) (((value) << (bits)) | ((value) >> (32 - (bits))))
-
-static const char Kr[64] =
-{
- 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
- 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
- 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
- 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21
-};
-
-static const int KK[64] =
-{
- 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
- 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
- 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
- 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
- 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
- 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
- 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
- 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
- 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
- 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
- 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
- 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
- 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
- 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
- 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
- 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
-};
-
-static void MD5_Transform(MD5_CTX* ctx) {
- uint32_t W[64];
- uint32_t A, B, C, D;
- uint8_t* p = ctx->buf;
- int t;
-
- for(t = 0; t < 16; ++t) {
- uint32_t tmp = *p++;
- tmp |= *p++ << 8;
- tmp |= *p++ << 16;
- tmp |= *p++ << 24;
- W[t] = tmp;
- }
-
- A = ctx->state[0];
- B = ctx->state[1];
- C = ctx->state[2];
- D = ctx->state[3];
-
- for(t = 0; t < 64; t++) {
- uint32_t f, tmp;
- int g;
-
- if (t < 16) {
- f = (D^(B&(C^D)));
- g = t;
- } else if ( t < 32) {
- f = (C^(D&(B^C)));
- g = (5*t + 1) & 15;
- } else if ( t < 48) {
- f = (B^C^D);
- g = (3*t + 5) & 15;
- } else {
- f = (C^(B|(~D)));
- g = (7*t) & 15;
- }
-
- tmp = D;
- D = C;
- C = B;
- B = B + rol(Kr[t], (A+f+KK[t]+W[g]));
- A = tmp;
- }
-
- ctx->state[0] += A;
- ctx->state[1] += B;
- ctx->state[2] += C;
- ctx->state[3] += D;
-}
-
-static const HASH_VTAB MD5_VTAB = {
- MD5_init,
- MD5_update,
- MD5_final,
- MD5,
- MD5_DIGEST_SIZE
-};
-
-void MD5_init(MD5_CTX* ctx) {
- ctx->f = &MD5_VTAB;
- ctx->state[0] = 0x67452301;
- ctx->state[1] = 0xEFCDAB89;
- ctx->state[2] = 0x98BADCFE;
- ctx->state[3] = 0x10325476;
- ctx->count = 0;
-}
-
-
-void MD5_update(MD5_CTX* ctx, const void* data, int len) {
- int i = ctx->count & 63;
- const uint8_t* p = (const uint8_t*)data;
-
- ctx->count += len;
-
- while (len--) {
- ctx->buf[i++] = *p++;
- if (i == 64) {
- MD5_Transform(ctx);
- i = 0;
- }
- }
-}
-
-
-const uint8_t* MD5_final(MD5_CTX* ctx) {
- uint8_t* p = ctx->buf;
- uint64_t cnt = ctx->count * 8;
- int i;
-
- MD5_update(ctx, (uint8_t*)"\x80", 1);
- while ((ctx->count & 63) != 56) {
- MD5_update(ctx, (uint8_t*)"\0", 1);
- }
- for (i = 0; i < 8; ++i) {
- uint8_t tmp = cnt >> (i * 8);
- MD5_update(ctx, &tmp, 1);
- }
-
- for (i = 0; i < 4; i++) {
- uint32_t tmp = ctx->state[i];
- *p++ = tmp;
- *p++ = tmp >> 8;
- *p++ = tmp >> 16;
- *p++ = tmp >> 24;
- }
-
- return ctx->buf;
-}
-
-
-/* Convenience function */
-const uint8_t* MD5(const void* data, int len, uint8_t* digest) {
- MD5_CTX ctx;
- MD5_init(&ctx);
- MD5_update(&ctx, data, len);
- memcpy(digest, MD5_final(&ctx), MD5_DIGEST_SIZE);
- return digest;
-}
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