Patent ID: 9098691
Filing Date: 2015-08-04
Classification: G06F

Abstract:
1. A handheld strong authentication token for generating dynamic security values comprising: a data storage component for storing data; at least one of an acoustical input interface for acoustically receiving input data and an optical input interface for optically receiving input data, the acoustical interface, if present, comprising a microphone and a demodulation circuit connected to the microphone adapted to demodulate an acoustical signal received by the microphone, and the optical input interface, if present, comprising at least one or more optical detectors for receiving an optical signal; and a data processing component connected to the at least one of the acoustical input interface and the optical input interface, the data processing component adapted to recover input data transmitted in the acoustical or optical signal received by the at least one of an acoustical input interface and optical input interface, to process the recovered input data, and to generate the dynamic security values; wherein the data processing component is further adapted to decode a message comprising at least two data blocks and comprising at least the input data and transmitted in the acoustical or optical signal received by the at least one of the acoustical input interface and the optical input interface by: