FreeBSD/Linux Kernel Cross Reference
sys/crypto/md5.h

     /*      $OpenBSD: md5.h,v 1.3 2014/11/16 17:39:09 tedu 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_
    
    #define MD5_BLOCK_LENGTH                64
    #define MD5_DIGEST_LENGTH               16
    
    typedef struct MD5Context {
            u_int32_t state[4];                     /* state */
            u_int64_t count;                        /* number of bits, mod 2^64 */
            u_int8_t buffer[MD5_BLOCK_LENGTH];      /* input buffer */
    } MD5_CTX;
    
    __BEGIN_DECLS
    void     MD5Init(MD5_CTX *);
    void     MD5Update(MD5_CTX *, const void *, size_t)
                    __attribute__((__bounded__(__string__,2,3)));
    void     MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
                    __attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
    void     MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
                    __attribute__((__bounded__(__minbytes__,1,4)))
                    __attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
    __END_DECLS
    
    #endif /* _MD5_H_ */

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