Patent ID: 9021248
Filing Date: 2015-04-28
Classification: G06F,H04L

Abstract:
1. A method of authenticating a user on a first computing device, comprising: receiving a user input at a first time from a user of the first computing device for authenticating the user; generating first information derived from the user input at the first computing device; sending the first information to a second computing device for comparison with second information stored in the second computing device, the second information derived from a first password provided by the user at a second time preceding the first time; receiving an unencrypted server token from the second computing device responsive to the second computing device authenticating the user based at least on matching of the first information and the second information; using the unencrypted server token to access an application or encrypted data in the first computing device; receiving a second password at a third time from the user of the first computing device for authentication of the user, the communication between the first and the second computing devices unavailable at the third time and decrypting an encrypted server token stored in the first computing device using the second password to obtain the unencrypted server token.