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* 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.
* 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.
#ifndef MD5_H_
#define MD5_H_
#define MD5_DIGEST_LENGTH 16
#define MD5_BLOCK_LENGTH 64
typedef struct MD5Context {
uint32_t state[4]; /* state (ABCD) */
uint64_t count; /* number of bits, modulo 2^64 (lsb first) */
unsigned char buffer[MD5_BLOCK_LENGTH]; /* input buffer */
} MD5_CTX;
void MD5Init(MD5_CTX *);
void MD5Update(MD5_CTX *, const unsigned char *, size_t);
void MD5Final(unsigned char[MD5_DIGEST_LENGTH], MD5_CTX *);