06836554 is referenced by 93 patents.

Authentication methods are very important in several applications. Existing methods of authentication based on possessions or knowledge have several problems that can be overcome by using biometrics. Unfortunately biometrics-based authentication is unrevocable today and has many privacy concerns in users' minds. The proposed technique employs signal scrambling and morphing techniques to intentionally distort the original biometrics signal in a non-invertible fashion. If the security is compromised, the system can cancel a particular distortion and reacquire the signal with a new distortion function. This provides functionality as good as non-biometric authentication methods in terms of their power of revocation.

Title
System and method for distorting a biometric for transactions with enhanced security and privacy
Application Number
9/595935
Publication Number
6836554 (B1)
Application Date
June 16, 2000
Publication Date
December 28, 2004
Inventor
Nalini K Ratha
White Plains
NY, US
Jonathan H Connell
Cortlandt Manor
NY, US
Rudolf Maarten Bolle
Bedford Hills
NY, US
Agent
Louis J Percello Esq
US
Assignee
International Business Machines Corporation
NY, US
IPC
G06K 9/00
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