107 lines
4.4 KiB
C
107 lines
4.4 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#ifndef OPENSSL_HEADER_MD4_H
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#define OPENSSL_HEADER_MD4_H
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#include <openssl/base.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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// MD4.
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// MD4_CBLOCK is the block size of MD4.
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#define MD4_CBLOCK 64
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// MD4_DIGEST_LENGTH is the length of an MD4 digest.
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#define MD4_DIGEST_LENGTH 16
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// MD4_Init initialises |md4| and returns one.
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OPENSSL_EXPORT int MD4_Init(MD4_CTX *md4);
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// MD4_Update adds |len| bytes from |data| to |md4| and returns one.
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OPENSSL_EXPORT int MD4_Update(MD4_CTX *md4, const void *data, size_t len);
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// MD4_Final adds the final padding to |md4| and writes the resulting digest to
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// |md|, which must have at least |MD4_DIGEST_LENGTH| bytes of space. It
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// returns one.
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OPENSSL_EXPORT int MD4_Final(uint8_t *md, MD4_CTX *md4);
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// MD4 writes the digest of |len| bytes from |data| to |out| and returns |out|.
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// There must be at least |MD4_DIGEST_LENGTH| bytes of space in |out|.
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OPENSSL_EXPORT uint8_t *MD4(const uint8_t *data, size_t len, uint8_t *out);
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// MD4_Transform is a low-level function that performs a single, MD4 block
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// transformation using the state from |md4| and 64 bytes from |block|.
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OPENSSL_EXPORT void MD4_Transform(MD4_CTX *md4, const uint8_t *block);
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struct md4_state_st {
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uint32_t h[4];
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uint32_t Nl, Nh;
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uint8_t data[MD4_CBLOCK];
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unsigned num;
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};
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#if defined(__cplusplus)
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} // extern C
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#endif
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#endif // OPENSSL_HEADER_MD4_H
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