NAME
    Crypt::TripleDES - Triple DES encyption.

SYNOPSIS
     my $des = new Crypt::TripleDES; 
     my $cyphertext = $des->encrypt3 ( $plaintext, $passphrase );
     my $plaintext = $des->decrypt3 ( $cyphertext, $passphrase );

DESCRIPTION
    This module implements 3DES encryption in ECB mode. The code is based on
    Eric Young's implementation of DES in pure perl. It's quite slow because
    of the way Perl handles bit operations and is not recommended for use
    with large texts.

METHODS
    new The constructor.

    encrypt3 $plaintext, $passphrase
        Encrypts the plaintext string using the passphrase. Whitespace
        characters are appended to the string if its length is not a
        multiple of eight. User applications can correct for this by storing
        plaintext size with the cyphertext. The passphrase is an ASCII
        character string of upto 48 characters.

    decrypt3 $cyphertext, $passphrase
        Inverse of encrypt3().

AUTHOR
     Vipul Ved Prakash, mail@vipul.net    
     Eric Young, eay@psych.psy.uq.oz.au

     Patches: 
     Jonathan Mayer <jmayer@cobaltnet.com>

