I am using Services to collect data from an application. I will store each user's key on their drupal profile, and want to match that key against a key submitted through services. I would like to store the user key as an encrypted field on the user's profile, then match that to the one being submitted. I'm looking for a contrib module that provides:
- field encryption
- a simple way to match (yes/no) the encrypted field against another entity
Any suggestions?
The closest I've found so far is http://drupal.org/project/encrypt