A digital wallet stores an cryptographically camouflaged access-controlled datum, e.g., a private key encrypted under the user's PIN. Entry of the correct PIN will correctly decrypt the stored key. Entry of certain pseudo-valid PINs will also decrypt the stored key, but improperly so, resulting in a...http://www.google.fr/patents/US6956950?utm_source=gb-gplus-shareBrevet US6956950 - Computer readable medium having a private key encryption program
Computer readable medium having a private key encryption program
