ets-berkeley-edu/calcentral — pull request #296 by raydavis (2012-11-23 21:53:24+00:00)
Title: CLC-526 Store encrypted access tokens

If you can reach someone's approved OAuth2 tokens, you effectively control their account on the proxied apps. Now that our data will be stored on a remote database, we need to encrypt tokens via keys stored outside that database.