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      1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      2  * All rights reserved.
      3  *
      4  * This package is an SSL implementation written
      5  * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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