Patent ID: 6202151
Filing Date: 2001-03-13
Classification: G06Q,G07C

Abstract:
A system for authenticating electronic transactions involving a user, comprising:a transaction input device configured to receive transaction data relating to an electronic transaction;a biometric input device configured to generate biometric data corresponding to a physical condition of the user;a biometric certificate generator configured to generate a biometric certificate from the transaction data, the biometric data, and a public key corresponding to the user;a hash function generator configured to generate a hash value signal from the biometric certificate using a hash function;a registration authority configured to generate a biometric digital signature from the hash value signal and a private key corresponding to the user;an electronic transaction generator configured to generate a transaction signal, corresponding to the electronic transaction to be transmitted over a network, from the biometric digital signature and the transaction data;a receiver configured to receive the transaction signal from the network and process the received transaction signal to extract the biometric certificate; anda biometric certificate management system configured to certify the electronic transaction as being from the user, including:a biometric data extractor configured to isolate the biometric data from the extracted biometric certificate, anda classifier configured to retrieve pre-registered biometric data corresponding to the user from a biometric database, compare the biometric data to the pre-registered biometric data, generate an authentication decision signal based on the comparison, and provide the authentication decision signal to the receiver to permit the receiver to determine whether the electronic transaction involves the user.