[gnfurlong]

I'm surprised there's not more discussion of passwordstore in this thread. In light of the parent article, I want to point out one of it's killer features (from my perspective). As it's built on top of PGP, you can move your private key to a PGP smart card and then decryption operations are done entirely on the smart card. Your private key never leaves the card. If you're using a Yubikey as the smart card, there's also a feature where you have to touch the card to approve of any operation (even when already unlocked by entering the smart card's password).