Blame src/microhttpd/md5.h

Packit 875988
/*
Packit 875988
 * This code implements the MD5 message-digest algorithm.
Packit 875988
 * The algorithm is due to Ron Rivest.	This code was
Packit 875988
 * written by Colin Plumb in 1993, no copyright is claimed.
Packit 875988
 * This code is in the public domain; do with it what you wish.
Packit 875988
 *
Packit 875988
 * Equivalent code is available from RSA Data Security, Inc.
Packit 875988
 * This code has been tested against that, and is equivalent,
Packit 875988
 * except that you don't need to include two pages of legalese
Packit 875988
 * with every copy.
Packit 875988
 *
Packit 875988
 * To compute the message digest of a chunk of bytes, declare an
Packit 875988
 * MD5Context structure, pass it to MD5Init, call MD5Update as
Packit 875988
 * needed on buffers full of bytes, and then call MD5Final, which
Packit 875988
 * will fill a supplied 16-byte array with the digest.
Packit 875988
 */
Packit 875988
Packit 875988
#ifndef MHD_MD5_H
Packit 875988
#define MHD_MD5_H
Packit 875988
Packit 875988
#include "platform.h"
Packit 875988
Packit 875988
#define	MD5_BLOCK_SIZE              64
Packit 875988
#define	MD5_DIGEST_SIZE             16
Packit 875988
#define	MD5_DIGEST_STRING_LENGTH    (MD5_DIGEST_SIZE * 2 + 1)
Packit 875988
Packit 875988
struct MD5Context
Packit 875988
{
Packit 875988
  uint32_t state[4];			/* state */
Packit 875988
  uint64_t count;			/* number of bits, mod 2^64 */
Packit 875988
  uint8_t buffer[MD5_BLOCK_SIZE];	/* input buffer */
Packit 875988
};
Packit 875988
Packit 875988
/*
Packit 875988
 * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
Packit 875988
 * initialization constants.
Packit 875988
 */
Packit 875988
void MD5Init(struct MD5Context *ctx);
Packit 875988
Packit 875988
/*
Packit 875988
 * Update context to reflect the concatenation of another buffer full
Packit 875988
 * of bytes.
Packit 875988
 */
Packit 875988
void MD5Update(struct MD5Context *ctx, const unsigned char *input, size_t len);
Packit 875988
Packit 875988
/*
Packit 875988
 * Pad pad to 64-byte boundary with the bit pattern
Packit 875988
 * 1 0* (64-bit count of bits processed, MSB-first)
Packit 875988
 */
Packit 875988
void MD5Pad(struct MD5Context *ctx);
Packit 875988
Packit 875988
/*
Packit 875988
 * Final wrapup--call MD5Pad, fill in digest and zero out ctx.
Packit 875988
 */
Packit 875988
void MD5Final(unsigned char digest[MD5_DIGEST_SIZE], struct MD5Context *ctx);
Packit 875988
Packit 875988
/*
Packit 875988
 * The core of the MD5 algorithm, this alters an existing MD5 hash to
Packit 875988
 * reflect the addition of 16 longwords of new data.  MD5Update blocks
Packit 875988
 * the data and converts bytes into longwords for this routine.
Packit 875988
 */
Packit 875988
void MD5Transform(uint32_t state[4], const uint8_t block[MD5_BLOCK_SIZE]);
Packit 875988
Packit 875988
#endif /* !MHD_MD5_H */