From: Dan Zwell <dzwell@...>
Date: 2007-09-02T20:47:33+09:00
Subject: Re: 2 Way encryption for password

Gabriel Dragffy wrote:
> Hi
> 
> I'm creating a password database (a dangerous thing to do, I know!) 
> normally I'd hash the passwords for storage in the DB, but in this case 
> I need to be able to also reverse them to their original state. I'm 
> familiar with the digest module, but of course it isn't of use here. I 
> didn't see anything obvious on my Google travels. Could anyone suggest 
> how to perform encryption in ruby, in particular based on a rails 
> application...?
> 
> Many thanks
> 
> Gabriel
> 
> 

Have a look here: 
http://stakeventures.com/articles/2005/06/16/crypto-in-ruby (OpenSSL 
contains many encryption algorithms), and you might want to browse this 
list: 
http://raa.ruby-lang.org/cat.rhtml?category_major=Library;category_minor=Cryptography

Hope this helps,
Dan