Here is a simple example of how to use Crypt::CBC:

#!/usr/bin/perl -w
use Crypt::CBC;
use MIME::Base64;
use strict;

my $plainin = 
"Now is the time for all good time for all good men to
come to the aid of their party.  The quick brown fox
jumped over the lazy dog's back.\n";


my $cipher = Crypt::CBC->new( 
     {'key'             => 'Richard',
      'cipher'          => 'Blowfish',
      });

my $cryptext = $cipher->encrypt($plainin);

# if you need to save the cryptext as ASCII, use something
# like uuencoding:
my $cipher_uuenc = pack("u", $cryptext);
# or Base64 encoding (not built in to Perl, may need to install module
+)
# (Use one or the other, not both.  I just show both for pedagogical
# purposes).
my $cipher_base64 = encode_base64($cryptext);

print "cipher_uuenc  = $cipher_uuenc\n";
print "cipher_base64 = $cipher_base64\n";

my $cryptext2 = unpack("u", $cipher_uuenc);
my $cryptext3 = decode_base64($cipher_base64);

if ($cryptext2 eq $cryptext3) {
  print "Hey, they had better be equal!\n";
} else {
  print "Something is really screwed up!\n";
}

my $cipherx = Crypt::CBC->new( 
     {'key'             => 'Richard',
      'cipher'          => 'Blowfish',
      });
my $plainout = $cipherx->decrypt($cryptext2);
print "plainout =\n$plainout";
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Tedrek

I tried to swear at perl and it compiled!