Joe <[EMAIL PROTECTED]> wrote:
>I assume I need something called MD5.pm; where could I get it?
Same place you get all your Perl modules -- CPAN!
>What does it do?
>From `perldoc Digest`:
The Digest:: modules calculate digests, also called
"fingerprints" or "hashes", of some data, called a
message. The digest is some small fixed size string. The
actual size of the digest depend of the algorithm used.
The message is simply a sequence of arbitrary bytes.
An important property of the digest algorithms is that the
digest is likely to change if the message change in some
way. Another property is that digest functions are one-
way functions, i.e. it should be hard to find a message
that correspond to some given digest. Algorithms differ
in how "likely" and how "hard", as well as how efficient
they are to compute.
>From `perldoc Digest::MD5`:
The Digest::MD5 module allows you to use the RSA Data
Security Inc. MD5 Message Digest algorithm from within
Perl programs. The algorithm takes as input a message of
arbitrary length and produces as output a 128-bit
"fingerprint" or "message digest" of the input.
Ryan Caveney
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