diff options
Diffstat (limited to 'md5')
| -rwxr-xr-x | md5/md5.c | 252 | ||||
| -rwxr-xr-x | md5/md5.h | 38 | ||||
| -rwxr-xr-x | md5/media-thumb-hash.c | 107 |
3 files changed, 0 insertions, 397 deletions
diff --git a/md5/md5.c b/md5/md5.c deleted file mode 100755 index c223cfe..0000000 --- a/md5/md5.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * This code implements 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. - * - * 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <string.h> /* for memcpy() */ -#include "md5.h" - -#if (__BYTE_ORDER == 1234) -#define byteReverse(buf, len) /* Nothing */ -#else -void byteReverse(unsigned char *buf, unsigned longs); - -/* - * Note: this code is harmless on little-endian machines. - */ -void byteReverse(unsigned char *buf, unsigned longs) -{ - uint32_t t; - do { - t = (uint32_t) ((unsigned)buf[3] << 8 | buf[2]) << 16 | - ((unsigned)buf[1] << 8 | buf[0]); - *(uint32_t *) buf = t; - buf += 4; - } while (--longs); -} -#endif - -/* - * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious - * initialization constants. - */ -void media_thumb_MD5Init(MD5_CTX *ctx) -{ - ctx->buf[0] = 0x67452301; - ctx->buf[1] = 0xefcdab89; - ctx->buf[2] = 0x98badcfe; - ctx->buf[3] = 0x10325476; - - ctx->bits[0] = 0; - ctx->bits[1] = 0; -} - -/* - * Update context to reflect the concatenation of another buffer full - * of bytes. - */ -void media_thumb_MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) -{ - uint32_t t; - - /* Update bitcount */ - - t = ctx->bits[0]; - if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t) { - ctx->bits[1]++; /* Carry from low to high */ - } - - ctx->bits[1] += len >> 29; - - t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ - - /* Handle any leading odd-sized chunks */ - - if (t) { - unsigned char *p = (unsigned char *)ctx->in + t; - - t = 64 - t; - if (len < t) { - memcpy(p, buf, len); - return; - } - memcpy(p, buf, t); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (uint32_t *) ctx->in); - buf += t; - len -= t; - } - /* Process data in 64-byte chunks */ - - while (len >= 64) { - memcpy(ctx->in, buf, 64); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (uint32_t *) ctx->in); - buf += 64; - len -= 64; - } - - /* Handle any remaining bytes of data. */ - - memcpy(ctx->in, buf, len); -} - -/* - * Final wrapup - pad to 64-byte boundary with the bit pattern - * 1 0* (64-bit count of bits processed, MSB-first) - */ -void media_thumb_MD5Final(unsigned char digest[16], MD5_CTX *ctx) -{ - unsigned count; - unsigned char *p; - - /* Compute number of bytes mod 64 */ - count = (ctx->bits[0] >> 3) & 0x3F; - - /* Set the first char of padding to 0x80. This is safe since there is - always at least one byte free */ - p = ctx->in + count; - *p++ = 0x80; - - /* Bytes of padding needed to make 64 bytes */ - count = 64 - 1 - count; - - /* Pad out to 56 mod 64 */ - if (count < 8) { - /* Two lots of padding: Pad the first block to 64 bytes */ - memset(p, 0, count); - byteReverse(ctx->in, 16); - MD5Transform(ctx->buf, (uint32_t *) ctx->in); - - /* Now fill the next block with 56 bytes */ - memset(ctx->in, 0, 56); - } else { - /* Pad block to 56 bytes */ - memset(p, 0, count - 8); - } - byteReverse(ctx->in, 14); - - /* Append length in bits and transform */ - memcpy(((uint32_t *) ctx->in)+14, ctx->bits, sizeof(uint32_t)*2); - - MD5Transform(ctx->buf, (uint32_t *) ctx->in); - byteReverse((unsigned char *)ctx->buf, 4); - memcpy(digest, ctx->buf, 16); - memset((char *)ctx, 0, sizeof(*ctx)); /* In case it's sensitive */ -} - -/* 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, data, s) \ -(w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += 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(uint32_t buf[4], uint32_t const in[16]) -{ - register uint32_t 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; -} diff --git a/md5/md5.h b/md5/md5.h deleted file mode 100755 index 72c9994..0000000 --- a/md5/md5.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * This code implements 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. - * - * 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. - */ - - -#ifndef _MD5_H_ -#define _MD5_H_ - -#include <stdint.h> -#include <sys/types.h> - -#define MD5_HASHBYTES 16 - -typedef struct MD5Context { - uint32_t buf[4]; - uint32_t bits[2]; - unsigned char in[64]; -} MD5_CTX; - -extern void media_thumb_MD5Init(MD5_CTX *context); -extern void media_thumb_MD5Update(MD5_CTX *context, unsigned char const *buf, unsigned len); -extern void media_thumb_MD5Final(unsigned char digest[MD5_HASHBYTES], MD5_CTX *context); -extern void MD5Transform(uint32_t buf[4], uint32_t const in[16]); - -#endif diff --git a/md5/media-thumb-hash.c b/md5/media-thumb-hash.c deleted file mode 100755 index b0a94f7..0000000 --- a/md5/media-thumb-hash.c +++ /dev/null @@ -1,107 +0,0 @@ -/* - * libmedia-thumbnail - * - * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved. - * - * Contact: Hyunjun Ko <zzoon.ko@samsung.com> - * - * 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. - * - */ - -#include "md5.h" -#include <string.h> -#include <alloca.h> -#include <media-util-err.h> - - -static const char ACCEPTABLE_URI_CHARS[96] = { - /* ! " # $ % & ' ( ) * + , - . / */ - 0x00, 0x3F, 0x20, 0x20, 0x28, 0x00, 0x2C, 0x3F, 0x3F, 0x3F, 0x3F, 0x2A, - 0x28, 0x3F, 0x3F, 0x1C, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x38, 0x20, - 0x20, 0x2C, 0x20, 0x20, - /* @ A B C D E F G H I J K L M N O */ - 0x38, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x20, - 0x20, 0x20, 0x20, 0x3F, - /* ` a b c d e f g h i j k l m n o */ - 0x20, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, - 0x3F, 0x3F, 0x3F, 0x3F, - /* p q r s t u v w x y z { | } ~ DEL */ - 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x20, - 0x20, 0x20, 0x3F, 0x20 -}; - -char *_media_thumb_generate_hash_name(const char *file) -{ - int n; - MD5_CTX ctx; - static char md5out[(2 * MD5_HASHBYTES) + 1]; - unsigned char hash[MD5_HASHBYTES]; - static const char hex[] = "0123456789abcdef"; - - char *uri; - char *t; - const unsigned char *c; - int length; - - if (!file) { - return NULL; - } - - length = 3 * strlen(file) + 9; - - memset(md5out, 0, sizeof(md5out)); - -#define _check_uri_char(c) \ -((c) >= 32 && (c) < 128 && (ACCEPTABLE_URI_CHARS[(c) - 32] & 0x08)) - - uri = alloca(length); - if (uri == NULL) { - return NULL; - } - - strncpy(uri, "file://", length); - uri[length - 1] = '\0'; - t = uri + sizeof("file://") - 1; - - for (c = (const unsigned char *)file; *c != '\0'; c++) { - if (!_check_uri_char(*c)) { - *t++ = '%'; - *t++ = hex[*c >> 4]; - *t++ = hex[*c & 15]; - } else { - *t++ = *c; - } - } - *t = '\0'; -#undef _check_uri_char - - memset(&ctx, 0x00, sizeof(MD5_CTX)); - - media_thumb_MD5Init(&ctx); - media_thumb_MD5Update(&ctx, (unsigned char const *)uri, (unsigned)strlen(uri)); - media_thumb_MD5Final(hash, &ctx); - - for (n = 0; n < MD5_HASHBYTES; n++) { - md5out[2 * n] = hex[hash[n] >> 4]; - md5out[2 * n + 1] = hex[hash[n] & 0x0f]; - } - md5out[2 * n] = '\0'; - - return md5out; -} |