We at www.smartsignin.com has developed a Single Sign-On system which gives your complete security and privacy by letting you choose your own decryption key (Cryptphrase) which makes you the sole owner of your data. We use client side encryption/decryption and doesn't store user's cryptphrase on the server thereby ensuring that not even the employees of SmartSignin can ever access user's data.<p>We have made it possible by using out patent-pending SmartKey algorithm developed in joint venture with Ganita Labs, University of Toronto.<p>Would love for HN people to try it and provide some feedback.