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+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/md5.h>
+
+#include <string.h>
+
+#include <openssl/mem.h>
+
+
+uint8_t *MD5(const uint8_t *data, size_t len, uint8_t *out) {
+ MD5_CTX ctx;
+ static uint8_t digest[MD5_DIGEST_LENGTH];
+
+ /* TODO(fork): remove this static buffer. */
+ if (out == NULL) {
+ out = digest;
+ }
+
+ MD5_Init(&ctx);
+ MD5_Update(&ctx, data, len);
+ MD5_Final(out, &ctx);
+
+ return out;
+}
+
+int MD5_Init(MD5_CTX *md5) {
+ memset(md5, 0, sizeof(MD5_CTX));
+ md5->A = 0x67452301UL;
+ md5->B = 0xefcdab89UL;
+ md5->C = 0x98badcfeUL;
+ md5->D = 0x10325476UL;
+ return 1;
+}
+
+#if !defined(OPENSSL_NO_ASM) && \
+ (defined(OPENSSL_X86_64) || defined(OPENSSL_X86))
+#define MD5_ASM
+#define md5_block_data_order md5_block_asm_data_order
+#endif
+
+
+void md5_block_data_order(MD5_CTX *md5, const void *p, size_t num);
+
+#define DATA_ORDER_IS_LITTLE_ENDIAN
+
+#define HASH_LONG uint32_t
+#define HASH_CTX MD5_CTX
+#define HASH_CBLOCK 64
+#define HASH_UPDATE MD5_Update
+#define HASH_TRANSFORM MD5_Transform
+#define HASH_FINAL MD5_Final
+#define HASH_MAKE_STRING(c, s) \
+ do { \
+ unsigned long ll; \
+ ll = (c)->A; \
+ (void) HOST_l2c(ll, (s)); \
+ ll = (c)->B; \
+ (void) HOST_l2c(ll, (s)); \
+ ll = (c)->C; \
+ (void) HOST_l2c(ll, (s)); \
+ ll = (c)->D; \
+ (void) HOST_l2c(ll, (s)); \
+ } while (0)
+#define HASH_BLOCK_DATA_ORDER md5_block_data_order
+
+#include "../digest/md32_common.h"
+
+/* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
+ * simplified to the code below. Wei attributes these optimizations
+ * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
+ */
+#define F(b,c,d) ((((c) ^ (d)) & (b)) ^ (d))
+#define G(b,c,d) ((((b) ^ (c)) & (d)) ^ (c))
+#define H(b,c,d) ((b) ^ (c) ^ (d))
+#define I(b,c,d) (((~(d)) | (b)) ^ (c))
+
+#define R0(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+F((b),(c),(d))); \
+ a=ROTATE(a,s); \
+ a+=b; };\
+
+#define R1(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+G((b),(c),(d))); \
+ a=ROTATE(a,s); \
+ a+=b; };
+
+#define R2(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+H((b),(c),(d))); \
+ a=ROTATE(a,s); \
+ a+=b; };
+
+#define R3(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+I((b),(c),(d))); \
+ a=ROTATE(a,s); \
+ a+=b; };
+
+#ifndef md5_block_data_order
+#ifdef X
+#undef X
+#endif
+void md5_block_data_order(MD5_CTX *md5, const void *in_data, size_t num) {
+ const uint8_t *data = in_data;
+ uint32_t A, B, C, D, l;
+ uint32_t XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7, XX8, XX9, XX10, XX11, XX12,
+ XX13, XX14, XX15;
+#define X(i) XX##i
+
+ A = md5->A;
+ B = md5->B;
+ C = md5->C;
+ D = md5->D;
+
+ for (; num--;) {
+ HOST_c2l(data, l);
+ X(0) = l;
+ HOST_c2l(data, l);
+ X(1) = l;
+ /* Round 0 */
+ R0(A, B, C, D, X(0), 7, 0xd76aa478L);
+ HOST_c2l(data, l);
+ X(2) = l;
+ R0(D, A, B, C, X(1), 12, 0xe8c7b756L);
+ HOST_c2l(data, l);
+ X(3) = l;
+ R0(C, D, A, B, X(2), 17, 0x242070dbL);
+ HOST_c2l(data, l);
+ X(4) = l;
+ R0(B, C, D, A, X(3), 22, 0xc1bdceeeL);
+ HOST_c2l(data, l);
+ X(5) = l;
+ R0(A, B, C, D, X(4), 7, 0xf57c0fafL);
+ HOST_c2l(data, l);
+ X(6) = l;
+ R0(D, A, B, C, X(5), 12, 0x4787c62aL);
+ HOST_c2l(data, l);
+ X(7) = l;
+ R0(C, D, A, B, X(6), 17, 0xa8304613L);
+ HOST_c2l(data, l);
+ X(8) = l;
+ R0(B, C, D, A, X(7), 22, 0xfd469501L);
+ HOST_c2l(data, l);
+ X(9) = l;
+ R0(A, B, C, D, X(8), 7, 0x698098d8L);
+ HOST_c2l(data, l);
+ X(10) = l;
+ R0(D, A, B, C, X(9), 12, 0x8b44f7afL);
+ HOST_c2l(data, l);
+ X(11) = l;
+ R0(C, D, A, B, X(10), 17, 0xffff5bb1L);
+ HOST_c2l(data, l);
+ X(12) = l;
+ R0(B, C, D, A, X(11), 22, 0x895cd7beL);
+ HOST_c2l(data, l);
+ X(13) = l;
+ R0(A, B, C, D, X(12), 7, 0x6b901122L);
+ HOST_c2l(data, l);
+ X(14) = l;
+ R0(D, A, B, C, X(13), 12, 0xfd987193L);
+ 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 = md5->A += A;
+ B = md5->B += B;
+ C = md5->C += C;
+ D = md5->D += D;
+ }
+}
+#endif
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