ref: 127dfcfefaec2397cb462ef797befd0b3611864e
dir: /third_party/boringssl/src/include/openssl/md5.h/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#ifndef OPENSSL_HEADER_MD5_H
#define OPENSSL_HEADER_MD5_H
#include <openssl/base.h>
#if defined(__cplusplus)
extern "C" {
#endif
// MD5.
// MD5_CBLOCK is the block size of MD5.
#define MD5_CBLOCK 64
// MD5_DIGEST_LENGTH is the length of an MD5 digest.
#define MD5_DIGEST_LENGTH 16
// MD5_Init initialises |md5| and returns one.
OPENSSL_EXPORT int MD5_Init(MD5_CTX *md5);
// MD5_Update adds |len| bytes from |data| to |md5| and returns one.
OPENSSL_EXPORT int MD5_Update(MD5_CTX *md5, const void *data, size_t len);
// MD5_Final adds the final padding to |md5| and writes the resulting digest to
// |out|, which must have at least |MD5_DIGEST_LENGTH| bytes of space. It
// returns one.
OPENSSL_EXPORT int MD5_Final(uint8_t out[MD5_DIGEST_LENGTH], MD5_CTX *md5);
// MD5 writes the digest of |len| bytes from |data| to |out| and returns |out|.
// There must be at least |MD5_DIGEST_LENGTH| bytes of space in |out|.
OPENSSL_EXPORT uint8_t *MD5(const uint8_t *data, size_t len,
uint8_t out[MD5_DIGEST_LENGTH]);
// MD5_Transform is a low-level function that performs a single, MD5 block
// transformation using the state from |md5| and 64 bytes from |block|.
OPENSSL_EXPORT void MD5_Transform(MD5_CTX *md5,
const uint8_t block[MD5_CBLOCK]);
struct md5_state_st {
uint32_t h[4];
uint32_t Nl, Nh;
uint8_t data[MD5_CBLOCK];
unsigned num;
};
#if defined(__cplusplus)
} // extern C
#endif
#endif // OPENSSL_HEADER_MD5_H