1 .\" $OpenBSD: md5.9,v 1.1 1996/04/17 21:40:14 mickey Exp $
3 .\" Copyright (c) 1996 Michael Shalayeff
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40 .Nd message digest routines
45 .Fn MD5Init "MD5_CTX *buf"
47 .Fn MD5Transform "u_int32_t buf[4]" "const unsigned char block[64]"
51 module implements the RSA Data Security, Inc. MD5 Message-Digest Algorithm
52 (MD5). It produces 128-bit MD5 Digest of data.
54 .Bl -hang -width MD5Transformxxx
56 must be called just before
58 will be used to produce a digest.
61 argument is the storage for the digest being produced on subsequent
66 is the core of the MD5 algorithm, this alters an existing MD5 hash
69 to reflect the addition of 64 characters
75 The code for MD5 transform was taken from Colin Plumb's
76 implementation, which has been placed in the public domain.
77 The MD5 cryptographic checksum was devised by Ronald Rivest, and is
78 documented in RFC 1321, "The MD5 Message Digest Algorithm".