blob: 6a1fcd4175e13f386c9df2d22aa1c8f6d3c42482 [file] [log] [blame]
/*
* This is the header file for 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.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*
* Changed so as no longer to depend on Colin Plumb's `usual.h'
* header definitions; now uses stuff from dpkg's config.h
* - Ian Jackson <ijackson@nyx.cs.du.edu>.
* Still in the public domain.
*/
#ifndef MD5_H
#define MD5_H
#include "types.h"
#include <string.h>
#define MD5_BLOCK_WORDS 16
#define MD5_BLOCK_BYTES (MD5_BLOCK_WORDS * 4)
#define MD5_DIGEST_WORDS 4
#define MD5_DIGEST_BYTES (MD5_DIGEST_WORDS * 4)
#define MD5_COUNTER_BYTES 8
struct md5_ctx {
u32 block[MD5_BLOCK_WORDS];
u32 digest[MD5_DIGEST_WORDS];
u64 count;
};
void md5_init(struct md5_ctx *ctx);
void md5_update(struct md5_ctx *ctx, const void *data_in, size_t len);
void md5_final(struct md5_ctx *ctx, u8 *out);
#endif /* !MD5_H */