Patent ID: 6237095
Filing Date: 2001-05-22
Classification: G06Q,G07F,H04L

Abstract:
An apparatus for receiving and transmitting encrypted data, comprising:an input/output interface for receiving a challenge number from an electronic device;a microprocessor circuit connected to said input/output interface;a coprocessor circuit, connected to said microprocessor circuit;a timing circuit connected to the microprocessor, the timing circuit for generating a time stamp;a first memory connected to said microprocessor circuit, said first memory for storing a first data object; anda second memory connected to said microprocessor circuit, said second memory including instructions readable by said microprocessor circuit to thereby cause said microprocessor circuit to:initiate generation of a certificate, said certificate including said challenge number and a second data object; andadjust said first data object according to said second data object responsive to a verification signal from said electronic device;store a transaction script, the transaction script including at least a representation of the time stamp generated by the timing circuit.