1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to.  The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 *    notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 *    notice, this list of conditions and the following disclaimer in the
29 *    documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 *    must display the following acknowledgement:
32 *    "This product includes cryptographic software written by
33 *     Eric Young (eay@cryptsoft.com)"
34 *    The word 'cryptographic' can be left out if the rouines from the library
35 *    being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 *    the apps directory (application code) you must include an acknowledgement:
38 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed.  i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#ifndef OPENSSL_HEADER_RIPEMD_H
58#define OPENSSL_HEADER_RIPEMD_H
59
60#include <openssl/base.h>
61
62#ifdef  __cplusplus
63extern "C" {
64#endif
65
66
67# define RIPEMD160_CBLOCK        64
68# define RIPEMD160_LBLOCK        (RIPEMD160_CBLOCK/4)
69# define RIPEMD160_DIGEST_LENGTH 20
70
71struct RIPEMD160state_st {
72  uint32_t h[5];
73  uint32_t Nl, Nh;
74  uint8_t data[RIPEMD160_CBLOCK];
75  unsigned num;
76};
77
78/* RIPEMD160_Init initialises |ctx| and returns one. */
79OPENSSL_EXPORT int RIPEMD160_Init(RIPEMD160_CTX *ctx);
80
81/* RIPEMD160_Update adds |len| bytes from |data| to |ctx| and returns one. */
82OPENSSL_EXPORT int RIPEMD160_Update(RIPEMD160_CTX *ctx, const void *data,
83                                   size_t len);
84
85/* RIPEMD160_Final adds the final padding to |ctx| and writes the resulting
86 * digest to |md|, which must have at least |RIPEMD160_DIGEST_LENGTH| bytes of
87 * space. It returns one. */
88OPENSSL_EXPORT int RIPEMD160_Final(uint8_t *md, RIPEMD160_CTX *ctx);
89
90/* RIPEMD160 writes the digest of |len| bytes from |data| to |out| and returns
91 * |out|. There must be at least |RIPEMD160_DIGEST_LENGTH| bytes of space in
92 * |out|. */
93OPENSSL_EXPORT uint8_t *RIPEMD160(const uint8_t *data, size_t len,
94                                  uint8_t *out);
95
96/* RIPEMD160_Transform is a low-level function that performs a single,
97 * RIPEMD160 block transformation using the state from |ctx| and 64 bytes from
98 * |block|. */
99OPENSSL_EXPORT void RIPEMD160_Transform(RIPEMD160_CTX *ctx,
100                                        const uint8_t *block);
101
102
103#if defined(__cplusplus)
104}  /* extern C */
105#endif
106
107#endif  /* OPENSSL_HEADER_RIPEMD_H */
108