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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
63 extern "C" {
64 #endif
65 
66 
67 # define RIPEMD160_CBLOCK        64
68 # define RIPEMD160_LBLOCK        (RIPEMD160_CBLOCK/4)
69 # define RIPEMD160_DIGEST_LENGTH 20
70 
71 struct 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. */
79 OPENSSL_EXPORT int RIPEMD160_Init(RIPEMD160_CTX *ctx);
80 
81 /* RIPEMD160_Update adds |len| bytes from |data| to |ctx| and returns one. */
82 OPENSSL_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. */
88 OPENSSL_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|. */
93 OPENSSL_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|. */
99 OPENSSL_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