/* $OpenBSD: md5.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $ */
/*
* This code implements the MD5 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.
*
* 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.
*/
#ifndef _MD5_H_
#define _MD5_H_
#include <sys/types.h>
#include <stdint.h>
#define MD5_BLOCK_LENGTH 64
#define MD5_DIGEST_LENGTH 16
#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1)
typedef struct MD5Context {
uint32_t state[4]; /* state */
uint64_t count; /* number of bits, mod 2^64 */
uint8_t buffer[MD5_BLOCK_LENGTH]; /* input buffer */
} MD5_CTX;
#ifdef __cplusplus
extern "C" {
#endif
void MD5Init(MD5_CTX *);
void MD5Update(MD5_CTX *, const uint8_t *, size_t);
void MD5Pad(MD5_CTX *);
void MD5Final(uint8_t [MD5_DIGEST_LENGTH], MD5_CTX *);
void MD5Transform(uint32_t [4], const uint8_t [MD5_BLOCK_LENGTH]);
char *MD5End(MD5_CTX *, char *);
char *MD5File(const char *, char *);
char *MD5FileChunk(const char *, char *, off_t, off_t);
char *MD5Data(const uint8_t *, size_t, char *);
#ifdef __cplusplus
}
#endif
/* Avoid polluting the namespace. Even though this makes this usage
* implementation-specific, defining it unconditionally should not be
* a problem, and better than possibly breaking unexpecting code. */
#ifdef LIBMD_MD5_ALADDIN
/*
* Interface compatibility with Aladdin Enterprises independent
* implementation from RFC 1321.
*/
typedef uint8_t md5_byte_t;
typedef uint32_t md5_word_t;
typedef MD5_CTX md5_state_t;
#define md5_init(pms) MD5Init(pms)
#define md5_append(pms, data, nbytes) MD5Update(pms, data, nbytes)
#define md5_finish(pms, digest) MD5Final(digest, pms)
#endif /* LIBMD_MD5_ALADDIN */
#endif /* _MD5_H_ */
