1 | /* ripemd160.h |
2 | |
3 | RIPEMD-160 hash function. |
4 | |
5 | Copyright (C) 2011 Andres Mejia |
6 | |
7 | This file is part of GNU Nettle. |
8 | |
9 | GNU Nettle is free software: you can redistribute it and/or |
10 | modify it under the terms of either: |
11 | |
12 | * the GNU Lesser General Public License as published by the Free |
13 | Software Foundation; either version 3 of the License, or (at your |
14 | option) any later version. |
15 | |
16 | or |
17 | |
18 | * the GNU General Public License as published by the Free |
19 | Software Foundation; either version 2 of the License, or (at your |
20 | option) any later version. |
21 | |
22 | or both in parallel, as here. |
23 | |
24 | GNU Nettle is distributed in the hope that it will be useful, |
25 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
26 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
27 | General Public License for more details. |
28 | |
29 | You should have received copies of the GNU General Public License and |
30 | the GNU Lesser General Public License along with this program. If |
31 | not, see http://www.gnu.org/licenses/. |
32 | */ |
33 | |
34 | #ifndef NETTLE_RIPEMD160_H_INCLUDED |
35 | #define NETTLE_RIPEMD160_H_INCLUDED |
36 | |
37 | #ifdef __cplusplus |
38 | extern "C" { |
39 | #endif |
40 | |
41 | #include "nettle-types.h" |
42 | |
43 | /* Name mangling */ |
44 | #define ripemd160_init nettle_ripemd160_init |
45 | #define ripemd160_update nettle_ripemd160_update |
46 | #define ripemd160_digest nettle_ripemd160_digest |
47 | |
48 | /* RIPEMD160 */ |
49 | |
50 | #define RIPEMD160_DIGEST_SIZE 20 |
51 | #define RIPEMD160_BLOCK_SIZE 64 |
52 | /* For backwards compatibility */ |
53 | #define RIPEMD160_DATA_SIZE RIPEMD160_BLOCK_SIZE |
54 | |
55 | /* Digest is kept internally as 5 32-bit words. */ |
56 | #define _RIPEMD160_DIGEST_LENGTH 5 |
57 | |
58 | struct ripemd160_ctx |
59 | { |
60 | uint32_t state[_RIPEMD160_DIGEST_LENGTH]; |
61 | uint64_t count; /* 64-bit block count */ |
62 | uint8_t block[RIPEMD160_BLOCK_SIZE]; |
63 | unsigned int index; |
64 | }; |
65 | |
66 | void |
67 | ripemd160_init(struct ripemd160_ctx *ctx); |
68 | |
69 | void |
70 | ripemd160_update(struct ripemd160_ctx *ctx, |
71 | size_t length, |
72 | const uint8_t *data); |
73 | |
74 | void |
75 | ripemd160_digest(struct ripemd160_ctx *ctx, |
76 | size_t length, |
77 | uint8_t *digest); |
78 | |
79 | /* Internal compression function. STATE points to 5 uint32_t words, |
80 | and DATA points to 64 bytes of input data, possibly unaligned. */ |
81 | void |
82 | _nettle_ripemd160_compress(uint32_t *state, const uint8_t *data); |
83 | |
84 | #ifdef __cplusplus |
85 | } |
86 | #endif |
87 | |
88 | #endif /* NETTLE_RIPEMD160_H_INCLUDED */ |
89 | |