What are you trying to do? Encrypt a cookie? If that's the case, then you can use any of the Crypt modules, but you want to use Mime::Base64 on it, so it can pass thru the web. Here is an example for Crypt::RC4. The nice thing about RC4 is that it has a pure perl module which you can upload to your server, if they don't have it installed. It's fast, although not the best security(but who are you trying to hide from anyways? It's probably not secure from the government) 
#!/usr/bin/perl
use strict;
use warnings;
use Crypt::RC4;
use MIME::Base64;
my $key       = "abcdefghijklm";
my $plaintext = "Hello, World!";
my $encrypted = RC4($key, $plaintext);

my $encoded = encode_base64($encrypted);
my $decoded = decode_base64($encoded);
print "$encoded\n";
print "$decoded\n";

my $decrypted = RC4($key, $decoded);
print "$decrypted\n";

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In reply to Re: which crypt:: ? by zentara
in thread which crypt:: ? by silent11

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