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/**
* $Id: b7bdd6a15ee28497d05d8ac8991e0feaac63a3a8 $
*
* @note license is LGPL, but largely derived from a public domain source.
*
* @file md4.h
* @brief Structures and prototypes for md4.
*/
#ifndef _FR_MD4_H
#define _FR_MD4_H
RCSIDH(md4_h, "$Id: b7bdd6a15ee28497d05d8ac8991e0feaac63a3a8 $")
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
#include <string.h>
#ifdef HAVE_OPENSSL_MD4_H
# include <openssl/md4.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MD4_DIGEST_LENGTH
# define MD4_DIGEST_LENGTH 16
#endif
#ifndef HAVE_OPENSSL_MD4_H
/*
* The MD5 code used here and in md4.c was originally retrieved from:
* http://www.openbsd.org/cgi-bin/cvsweb/src/include/md4.h?rev=1.12
*
* This code implements the MD4 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
* Todd C. Miller modified the MD5 code to do MD4 based on RFC 1186.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*/
# define MD4_BLOCK_LENGTH 64
# define MD4_DIGEST_STRING_LENGTH (MD4_DIGEST_LENGTH * 2 + 1)
typedef struct FR_MD4Context {
uint32_t state[4]; //!< State.
uint32_t count[2]; //!< Number of bits, mod 2^64.
uint8_t buffer[MD4_BLOCK_LENGTH]; //!< Input buffer.
} FR_MD4_CTX;
void fr_md4_init(FR_MD4_CTX *ctx);
void fr_md4_update(FR_MD4_CTX *ctx, uint8_t const *in, size_t inlen)
CC_BOUNDED(__string__, 2, 3);
void fr_md4_final(uint8_t out[MD4_DIGEST_LENGTH], FR_MD4_CTX *ctx)
CC_BOUNDED(__minbytes__, 1, MD4_DIGEST_LENGTH);
void fr_md4_transform(uint32_t buf[4], uint8_t const inc[MD4_BLOCK_LENGTH])
CC_BOUNDED(__size__, 1, 4, 4)
CC_BOUNDED(__minbytes__, 2, MD4_BLOCK_LENGTH);
#else /* HAVE_OPENSSL_MD4_H */
USES_APPLE_DEPRECATED_API
# define FR_MD4_CTX MD4_CTX
# define fr_md4_init MD4_Init
# define fr_md4_update MD4_Update
# define fr_md4_final MD4_Final
# define fr_md4_transform MD4_Transform
#endif
/* md4.c */
void fr_md4_calc(uint8_t out[MD4_DIGEST_LENGTH], uint8_t const *in, size_t inlen);
#ifdef __cplusplus
}
#endif
#endif /* _FR_MD4_H */
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