06553494 is referenced by 121 patents and cites 6 patents.

A method and apparatus are disclosed whereby a person signs an electronic document using a personal biometric. A sample of biometric data is collected from the person at the time of the signing of the document, and encrypted with the document itself and various other data to form a digital signature. The encryption technique utilized irrefutably couples the biometric data with the document. To authenticate the coupling, an authenticator signature is generated using the original data and is then compared with the original signature to verify a match there between. The biometric data used to generate the authenticator signature is then matched with a sample provided by an alleged signer of the document to verify his or her identity.

Title
Method and apparatus for applying and verifying a biometric-based digital signature to an electronic document
Application Number
9/358593
Publication Number
6553494 (B1)
Application Date
July 21, 1999
Publication Date
April 22, 2003
Inventor
Randal Glass
Hockessin
DE, US
Agent
Woodcock Washburn
US
Assignee
Sensar
NJ, US
IPC
H04L 9/32
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