Encrypting

I've looked thru the docs and haven't found anything on data encryption.

I'm sure this has been discussed before, but can someone tell me where I 
can
get hold of a method of encrypting the data in a field (i.e. a password 
field)?

If there's something already generated, I would apppreciate not
having to build my own.
-- 
_________________________
Herb Blacker
Database Administrator
ReCare, Inc.
(512) 791-4340
herbblacker@isgenesis.com