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Remove MD5

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This commit is contained in:
Zhi Guan
2023-12-13 20:14:19 +08:00
parent 7db4991b4d
commit 908ece9d0a
5 changed files with 2 additions and 285 deletions
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4
CMakeLists.txt
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@@ -249,8 +249,8 @@ endif()
option(ENABLE_BROKEN_CRYPTO "Enable broken crypto algorithms" OFF)
if (ENABLE_BROKEN_CRYPTO)
message(STATUS "ENABLE_BROKEN_CRYPTO")
list(APPEND src src/des.c src/sha1.c src/md5.c src/rc4.c)
list(APPEND tests des sha1 md5 rc4)
list(APPEND src src/des.c src/sha1.c src/rc4.c)
list(APPEND tests des sha1 rc4)
endif()

3
include/gmssl/digest.h
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@@ -17,7 +17,6 @@
#include <stdlib.h>
#include <gmssl/sm3.h>
#ifdef ENABLE_BROKEN_CRYPTO
#include <gmssl/md5.h>
#include <gmssl/sha1.h>
#endif
#include <gmssl/sha2.h>
@@ -40,7 +39,6 @@ struct DIGEST_CTX {
union {
SM3_CTX sm3_ctx;
#ifdef ENABLE_BROKEN_CRYPTO
MD5_CTX md5_ctx;
SHA1_CTX sha1_ctx;
#endif
SHA224_CTX sha224_ctx;
@@ -63,7 +61,6 @@ struct DIGEST {
const DIGEST *DIGEST_sm3(void);
#ifdef ENABLE_BROKEN_CRYPTO
const DIGEST *DIGEST_md5(void);
const DIGEST *DIGEST_sha1(void);
#endif
const DIGEST *DIGEST_sha224(void);

48
include/gmssl/md5.h
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@@ -1,48 +0,0 @@
/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#ifndef GMSSL_MD5_H
#define GMSSL_MD5_H
#include <string.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define MD5_IS_BIG_ENDIAN 0
#define MD5_DIGEST_SIZE 16
#define MD5_BLOCK_SIZE 64
#define MD5_STATE_WORDS (MD5_BLOCK_SIZE/sizeof(uint32_t))
typedef struct {
uint32_t state[MD5_STATE_WORDS];
uint64_t nblocks;
uint8_t block[MD5_BLOCK_SIZE];
size_t num;
} MD5_CTX;
void md5_init(MD5_CTX *ctx);
void md5_update(MD5_CTX *ctx, const uint8_t *data, size_t datalen);
void md5_finish(MD5_CTX *ctx, uint8_t dgst[MD5_DIGEST_SIZE]);
void md5_digest(const uint8_t *data, size_t datalen, uint8_t dgst[MD5_DIGEST_SIZE]);
#ifdef __cplusplus
}
#endif
#endif

51
src/digest.c
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@@ -25,7 +25,6 @@ typedef struct {
DIGEST_TABLE digest_table[] = {
{ OID_sm3, "sm3", "SM3" },
#ifdef ENABLE_BROKEN_CRYPTO
{ OID_md5, "md5", "MD5" },
{ OID_sha1, "sha1", "SHA-1" },
#endif
{ OID_sha224, "sha224", "SHA-224" },
@@ -96,8 +95,6 @@ const DIGEST *digest_from_name(const char *name)
if (!strcmp(name, "sm3") || !strcmp(name, "SM3")) {
return DIGEST_sm3();
#ifdef ENABLE_BROKEN_CRYPTO
} else if (!strcmp(name, "md5") || !strcmp(name, "MD5")) {
return DIGEST_md5();
} else if (!strcmp(name, "sha1") || !strcmp(name, "SHA1")) {
return DIGEST_sha1();
#endif
@@ -164,54 +161,6 @@ const DIGEST *DIGEST_sm3(void)
#ifdef ENABLE_BROKEN_CRYPTO
#include <gmssl/md5.h>
static int md5_digest_init(DIGEST_CTX *ctx)
{
if (!ctx) {
error_print();
return -1;
}
md5_init(&ctx->u.md5_ctx);
return 1;
}
static int md5_digest_update(DIGEST_CTX *ctx, const uint8_t *in, size_t inlen)
{
if (!ctx || (!in && inlen != 0)) {
error_print();
return -1;
}
md5_update(&ctx->u.md5_ctx, in, inlen);
return 1;
}
static int md5_digest_finish(DIGEST_CTX *ctx, uint8_t *dgst)
{
if (!ctx || !dgst) {
error_print();
return -1;
}
md5_finish(&ctx->u.md5_ctx, dgst);
return 1;
}
static const DIGEST md5_digest_object = {
OID_md5,
MD5_DIGEST_SIZE,
MD5_BLOCK_SIZE,
sizeof(MD5_CTX),
md5_digest_init,
md5_digest_update,
md5_digest_finish,
};
const DIGEST *DIGEST_md5(void)
{
return &md5_digest_object;
}
#include <gmssl/sha1.h>
static int sha1_digest_init(DIGEST_CTX *ctx)

181
src/md5.c
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@@ -1,181 +0,0 @@
/*
* Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <string.h>
#include <gmssl/md5.h>
#include <gmssl/endian.h>
#define F(B, C, D) (((B) & (C)) | ((~(B)) & (D)))
#define G(B, C, D) (((B) & (D)) | ((C) & (~(D))))
#define H(B, C, D) ((B) ^ (C) ^ (D))
#define I(B, C, D) ((C) ^ ((B) | (~(D))))
static const uint32_t K[] = {
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 const int S[] = {
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 void md5_compress_blocks(uint32_t state[4],
const unsigned char *data, size_t blocks)
{
uint32_t A;
uint32_t B;
uint32_t C;
uint32_t D;
uint32_t T;
uint32_t W[16];
int g, i;
while (blocks--) {
A = state[0];
B = state[1];
C = state[2];
D = state[3];
for (i = 0; i < 16; i++) {
W[i] = GETU32_LE(data);
data += sizeof(uint32_t);
}
for (i = 0; i < 16; i++) {
T = ROL32(A + F(B, C, D) + W[i] + K[i], S[i]) + B;
A = D;
D = C;
C = B;
B = T;
}
for (; i < 32; i++) {
g = (5 * i + 1) % 16;
T = ROL32(A + G(B, C, D) + W[g] + K[i], S[i]) + B;
A = D;
D = C;
C = B;
B = T;
}
for (; i < 48; i++) {
g = (3 * i + 5) % 16;
T = ROL32(A + H(B, C, D) + W[g] + K[i], S[i]) + B;
A = D;
D = C;
C = B;
B = T;
}
for (; i < 64; i++) {
g = (7 * i) % 16;
T = ROL32(A + I(B, C, D) + W[g] + K[i], S[i]) + B;
A = D;
D = C;
C = B;
B = T;
}
state[0] += A;
state[1] += B;
state[2] += C;
state[3] += D;
}
}
void md5_init(MD5_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xefcdab89;
ctx->state[2] = 0x98badcfe;
ctx->state[3] = 0x10325476;
}
void md5_update(MD5_CTX *ctx, const unsigned char *data, size_t datalen)
{
size_t blocks;
ctx->num &= 0x3f;
if (ctx->num) {
size_t left = MD5_BLOCK_SIZE - ctx->num;
if (datalen < left) {
memcpy(ctx->block + ctx->num, data, datalen);
ctx->num += datalen;
return;
} else {
memcpy(ctx->block + ctx->num, data, left);
md5_compress_blocks(ctx->state, ctx->block, 1);
ctx->nblocks++;
data += left;
datalen -= left;
}
}
blocks = datalen / MD5_BLOCK_SIZE;
md5_compress_blocks(ctx->state, data, blocks);
ctx->nblocks += blocks;
data += MD5_BLOCK_SIZE * blocks;
datalen -= MD5_BLOCK_SIZE * blocks;
ctx->num = datalen;
if (datalen) {
memcpy(ctx->block, data, datalen);
}
}
void md5_finish(MD5_CTX *ctx, unsigned char *dgst)
{
int i;
ctx->num &= 0x3f;
ctx->block[ctx->num] = 0x80;
if (ctx->num <= MD5_BLOCK_SIZE - 9) {
memset(ctx->block + ctx->num + 1, 0, MD5_BLOCK_SIZE - ctx->num - 9);
} else {
memset(ctx->block + ctx->num + 1, 0, MD5_BLOCK_SIZE - ctx->num - 1);
md5_compress_blocks(ctx->state, ctx->block, 1);
memset(ctx->block, 0, MD5_BLOCK_SIZE - 8);
}
PUTU64_LE(ctx->block + 56, (ctx->nblocks << 9) + (ctx->num << 3));
md5_compress_blocks(ctx->state, ctx->block, 1);
for (i = 0; i < 4; i++) {
PUTU32_LE(dgst, ctx->state[i]);
dgst += sizeof(uint32_t);
}
}
void md5_digest(const unsigned char *data, size_t datalen,
unsigned char dgst[MD5_DIGEST_SIZE])
{
MD5_CTX ctx;
md5_init(&ctx);
md5_update(&ctx, data, datalen);
md5_finish(&ctx, dgst);
memset(&ctx, 0, sizeof(ctx));
}