>You may need to store things like credit card numbers or passwords in
>the database. DBAs have full access to the database, and may need it,
>but you don't want them to know this information. If you need to get
>the information back out, then use encryption (blowfish etc) and store
>the encrypted data only.
>

Any suggestions on the best means of implementing encryption of this
sort? UDF? trigger? etc? How does one go about making this workable?

Mitch