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- /*
- * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the Apache License 2.0 (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
- /*
- * MD5 low level APIs are deprecated for public use, but still ok for
- * internal use.
- */
- #include "internal/deprecated.h"
- #include <stdio.h>
- #include "md5_local.h"
- #include <openssl/opensslv.h>
- /*
- * Implemented from RFC1321 The MD5 Message-Digest Algorithm
- */
- #define INIT_DATA_A (unsigned long)0x67452301L
- #define INIT_DATA_B (unsigned long)0xefcdab89L
- #define INIT_DATA_C (unsigned long)0x98badcfeL
- #define INIT_DATA_D (unsigned long)0x10325476L
- int MD5_Init(MD5_CTX *c)
- {
- memset(c, 0, sizeof(*c));
- c->A = INIT_DATA_A;
- c->B = INIT_DATA_B;
- c->C = INIT_DATA_C;
- c->D = INIT_DATA_D;
- return 1;
- }
- #ifndef md5_block_data_order
- # ifdef X
- # undef X
- # endif
- void md5_block_data_order(MD5_CTX *c, const void *data_, size_t num)
- {
- const unsigned char *data = data_;
- register unsigned MD32_REG_T A, B, C, D, l;
- # ifndef MD32_XARRAY
- /* See comment in crypto/sha/sha_local.h for details. */
- unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
- XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
- # define X(i) XX##i
- # else
- MD5_LONG XX[MD5_LBLOCK];
- # define X(i) XX[i]
- # endif
- A = c->A;
- B = c->B;
- C = c->C;
- D = c->D;
- for (; num--;) {
- (void)HOST_c2l(data, l);
- X(0) = l;
- (void)HOST_c2l(data, l);
- X(1) = l;
- /* Round 0 */
- R0(A, B, C, D, X(0), 7, 0xd76aa478L);
- (void)HOST_c2l(data, l);
- X(2) = l;
- R0(D, A, B, C, X(1), 12, 0xe8c7b756L);
- (void)HOST_c2l(data, l);
- X(3) = l;
- R0(C, D, A, B, X(2), 17, 0x242070dbL);
- (void)HOST_c2l(data, l);
- X(4) = l;
- R0(B, C, D, A, X(3), 22, 0xc1bdceeeL);
- (void)HOST_c2l(data, l);
- X(5) = l;
- R0(A, B, C, D, X(4), 7, 0xf57c0fafL);
- (void)HOST_c2l(data, l);
- X(6) = l;
- R0(D, A, B, C, X(5), 12, 0x4787c62aL);
- (void)HOST_c2l(data, l);
- X(7) = l;
- R0(C, D, A, B, X(6), 17, 0xa8304613L);
- (void)HOST_c2l(data, l);
- X(8) = l;
- R0(B, C, D, A, X(7), 22, 0xfd469501L);
- (void)HOST_c2l(data, l);
- X(9) = l;
- R0(A, B, C, D, X(8), 7, 0x698098d8L);
- (void)HOST_c2l(data, l);
- X(10) = l;
- R0(D, A, B, C, X(9), 12, 0x8b44f7afL);
- (void)HOST_c2l(data, l);
- X(11) = l;
- R0(C, D, A, B, X(10), 17, 0xffff5bb1L);
- (void)HOST_c2l(data, l);
- X(12) = l;
- R0(B, C, D, A, X(11), 22, 0x895cd7beL);
- (void)HOST_c2l(data, l);
- X(13) = l;
- R0(A, B, C, D, X(12), 7, 0x6b901122L);
- (void)HOST_c2l(data, l);
- X(14) = l;
- R0(D, A, B, C, X(13), 12, 0xfd987193L);
- (void)HOST_c2l(data, l);
- X(15) = l;
- R0(C, D, A, B, X(14), 17, 0xa679438eL);
- R0(B, C, D, A, X(15), 22, 0x49b40821L);
- /* Round 1 */
- R1(A, B, C, D, X(1), 5, 0xf61e2562L);
- R1(D, A, B, C, X(6), 9, 0xc040b340L);
- R1(C, D, A, B, X(11), 14, 0x265e5a51L);
- R1(B, C, D, A, X(0), 20, 0xe9b6c7aaL);
- R1(A, B, C, D, X(5), 5, 0xd62f105dL);
- R1(D, A, B, C, X(10), 9, 0x02441453L);
- R1(C, D, A, B, X(15), 14, 0xd8a1e681L);
- R1(B, C, D, A, X(4), 20, 0xe7d3fbc8L);
- R1(A, B, C, D, X(9), 5, 0x21e1cde6L);
- R1(D, A, B, C, X(14), 9, 0xc33707d6L);
- R1(C, D, A, B, X(3), 14, 0xf4d50d87L);
- R1(B, C, D, A, X(8), 20, 0x455a14edL);
- R1(A, B, C, D, X(13), 5, 0xa9e3e905L);
- R1(D, A, B, C, X(2), 9, 0xfcefa3f8L);
- R1(C, D, A, B, X(7), 14, 0x676f02d9L);
- R1(B, C, D, A, X(12), 20, 0x8d2a4c8aL);
- /* Round 2 */
- R2(A, B, C, D, X(5), 4, 0xfffa3942L);
- R2(D, A, B, C, X(8), 11, 0x8771f681L);
- R2(C, D, A, B, X(11), 16, 0x6d9d6122L);
- R2(B, C, D, A, X(14), 23, 0xfde5380cL);
- R2(A, B, C, D, X(1), 4, 0xa4beea44L);
- R2(D, A, B, C, X(4), 11, 0x4bdecfa9L);
- R2(C, D, A, B, X(7), 16, 0xf6bb4b60L);
- R2(B, C, D, A, X(10), 23, 0xbebfbc70L);
- R2(A, B, C, D, X(13), 4, 0x289b7ec6L);
- R2(D, A, B, C, X(0), 11, 0xeaa127faL);
- R2(C, D, A, B, X(3), 16, 0xd4ef3085L);
- R2(B, C, D, A, X(6), 23, 0x04881d05L);
- R2(A, B, C, D, X(9), 4, 0xd9d4d039L);
- R2(D, A, B, C, X(12), 11, 0xe6db99e5L);
- R2(C, D, A, B, X(15), 16, 0x1fa27cf8L);
- R2(B, C, D, A, X(2), 23, 0xc4ac5665L);
- /* Round 3 */
- R3(A, B, C, D, X(0), 6, 0xf4292244L);
- R3(D, A, B, C, X(7), 10, 0x432aff97L);
- R3(C, D, A, B, X(14), 15, 0xab9423a7L);
- R3(B, C, D, A, X(5), 21, 0xfc93a039L);
- R3(A, B, C, D, X(12), 6, 0x655b59c3L);
- R3(D, A, B, C, X(3), 10, 0x8f0ccc92L);
- R3(C, D, A, B, X(10), 15, 0xffeff47dL);
- R3(B, C, D, A, X(1), 21, 0x85845dd1L);
- R3(A, B, C, D, X(8), 6, 0x6fa87e4fL);
- R3(D, A, B, C, X(15), 10, 0xfe2ce6e0L);
- R3(C, D, A, B, X(6), 15, 0xa3014314L);
- R3(B, C, D, A, X(13), 21, 0x4e0811a1L);
- R3(A, B, C, D, X(4), 6, 0xf7537e82L);
- R3(D, A, B, C, X(11), 10, 0xbd3af235L);
- R3(C, D, A, B, X(2), 15, 0x2ad7d2bbL);
- R3(B, C, D, A, X(9), 21, 0xeb86d391L);
- A = c->A += A;
- B = c->B += B;
- C = c->C += C;
- D = c->D += D;
- }
- }
- #endif
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