1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <stdlib.h> |
11 | #include <string.h> |
12 | #include <openssl/opensslconf.h> |
13 | #include <openssl/md4.h> |
14 | |
15 | void md4_block_data_order(MD4_CTX *c, const void *p, size_t num); |
16 | |
17 | #define DATA_ORDER_IS_LITTLE_ENDIAN |
18 | |
19 | #define HASH_LONG MD4_LONG |
20 | #define HASH_CTX MD4_CTX |
21 | #define HASH_CBLOCK MD4_CBLOCK |
22 | #define HASH_UPDATE MD4_Update |
23 | #define HASH_TRANSFORM MD4_Transform |
24 | #define HASH_FINAL MD4_Final |
25 | #define HASH_MAKE_STRING(c,s) do { \ |
26 | unsigned long ll; \ |
27 | ll=(c)->A; (void)HOST_l2c(ll,(s)); \ |
28 | ll=(c)->B; (void)HOST_l2c(ll,(s)); \ |
29 | ll=(c)->C; (void)HOST_l2c(ll,(s)); \ |
30 | ll=(c)->D; (void)HOST_l2c(ll,(s)); \ |
31 | } while (0) |
32 | #define HASH_BLOCK_DATA_ORDER md4_block_data_order |
33 | |
34 | #include "crypto/md32_common.h" |
35 | |
36 | /*- |
37 | #define F(x,y,z) (((x) & (y)) | ((~(x)) & (z))) |
38 | #define G(x,y,z) (((x) & (y)) | ((x) & ((z))) | ((y) & ((z)))) |
39 | */ |
40 | |
41 | /* |
42 | * As pointed out by Wei Dai, the above can be simplified to the code |
43 | * below. Wei attributes these optimizations to Peter Gutmann's SHS code, |
44 | * and he attributes it to Rich Schroeppel. |
45 | */ |
46 | #define F(b,c,d) ((((c) ^ (d)) & (b)) ^ (d)) |
47 | #define G(b,c,d) (((b) & (c)) | ((b) & (d)) | ((c) & (d))) |
48 | #define H(b,c,d) ((b) ^ (c) ^ (d)) |
49 | |
50 | #define R0(a,b,c,d,k,s,t) { \ |
51 | a+=((k)+(t)+F((b),(c),(d))); \ |
52 | a=ROTATE(a,s); }; |
53 | |
54 | #define R1(a,b,c,d,k,s,t) { \ |
55 | a+=((k)+(t)+G((b),(c),(d))); \ |
56 | a=ROTATE(a,s); }; |
57 | |
58 | #define R2(a,b,c,d,k,s,t) { \ |
59 | a+=((k)+(t)+H((b),(c),(d))); \ |
60 | a=ROTATE(a,s); }; |
61 | |