Patent ID: 8775809
Filing Date: 2014-07-08
Classification: H04L

Abstract:
1. A method of verifying the validity of a digital signature based on biometric data, the method comprising the acts of: attaining by a verifier a first biometric template of an individual to be verified using a biometric sensor; storing on a user device a secret user key and a signing algorithm to create the digital signature on a message, and a second biometric template of the individual to be verified, wherein the secret user key is created by a trusted authority device using a secret master key and the second biometric template, wherein the second biometric template is obtained by the trusted authority device from the individual during registration of the individual, and wherein the digital signature is created using the signing algorithm to sign the message with the secret user key; receiving by the verifier, from the user device, the digital signature, the message and the second biometric template of the individual associated with the digital signature; verifying by the verifier the digital signature by using one of the first biometric template and the second biometric template as a public key; and comparing by the verifier the first biometric template with the second biometric template, wherein the verifying act is considered to be valid if the first biometric template matches the second biometric template within a predetermined value, wherein the verifier is different from the trusted authority device.