NAME    [Toc]    [Back]

     md5 - message digest routines

SYNOPSIS    [Toc]    [Back]

     #include <sys/kernel.h>

     void
     MD5Init(u_int32_t buf[4]);

     void
     MD5Transform(u_int32_t buf[4], u_int32_t const in[16]);

DESCRIPTION    [Toc]    [Back]

     The md5 module implements the RSA Data Security,  Inc.   MD5
Message-Digest
     Algorithm (MD5).  It produces 128-bit MD5 Digest of data.

     MD5Init       must be called just before MD5Transform() will
be used to
                   produce a digest.  The  buf  argument  is  the
storage for the
                   digest  being  produced on subsequent calls to
the
                   MD5Transform() routine.

     MD5Transform is the core of the MD5 algorithm,  this  alters
an existing
                   MD5  hash  kept in buf to reflect the addition
of 16 longwords
 of new data passed in in argument.

COPYRIGHTS    [Toc]    [Back]

     The code for MD5 transform was taken from Colin Plumb's  implementation,
     which has been placed in the public domain.  The MD5 cryptographic checksum
 was devised by Ronald Rivest, and is documented  in  RFC
1321, "The MD5
     Message Digest Algorithm".

SEE ALSO    [Toc]    [Back]

     random(4), random(9)

OpenBSD      3.6                          April      17,     1996