bionic (9) MD5.9freebsd.gz

NAME

     MD5, MD5Init, MD5Transform — message digest routines

SYNOPSIS

     #include <sys/types.h>
     #include <sys/md5.h>

     void
     MD5Init(MD5_CTX *buf);

     void
     MD5Transform(uint32_t buf[4], const unsigned char block[64]);

DESCRIPTION

     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 64 characters of new data passed in block argument.

COPYRIGHTS

     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".