This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
A better approach than storing cleartext or encrypted passwords in a DB is to store a hashed version of the password. That way, nobody can get at the password, and there's no need to deal with en-/decryption. It is as easy as: