Patent ID: 6778688
Filing Date: 2004-08-17
Classification: G06F,G06K,G07C

Abstract:
A method for enabling the remote authentication of fingerprints over an insecure network using a client-server architecture, comprising:transmitting the identity of the finger-print source to the server, retrieving the fingerprint pattern data of the fingerprint source from the fingerprint data-base at the server, transmitting a set of queries, each of which is derived from a randomly selected set of fingerprint pattern elements in said fingerprint pattern, to said client, comparing the received set of queries against the observed fingerprint pattern at the client, transmitting the identities of those queries to the server for which a match is observed by the client provided at least a defined minimum number of queries are verified, generating a set of challenges pertaining to defined physical relationships between fingerprint pattern elements in the identified queries, transmitting said challenges to said client, responding to said challenges based on observed fingerprint patterns at the client, and confirming authentication provided at least a defined minimum proportion of responses are determined to be correct by the server.