Rails: storing encrypted data in database

Question

I want to encrypt database because confidential data is being stored. I use mongodb with mongoid. It possible for this kind of database? And what alternatives can you recome

Answer 1

http://ezcrypto.rubyforge.org/

Using postgreSQL with the ezcrypto gem atm - works reasonably well although there are limitations in using associations between models with encrypted fields (this maybe down to my inability to find the correct up-to-date fork of this project).

The encrypted fields are stored in the postgreSQL database as the BYTEA datatype and will usually require for single quotes to be escaped (another issue with the plugin),

PostgreSQL does also have access to its own encryption / decryption modeul 'pgcrypto' which also returns a BYTEA datatype. Not sure how this would integrate with Rails activerecord and associations between models (probably badly :D).