FAST VERIFICATION METHOD FOR IDENTITY-BASED AGGREGATE SIGNATURES AND SYSTEM THEREOF

摘要

PURPOSE: A method for fast checking a group signature and a system thereof are provided to reduce the amount of information by verifying the validity of the group signature based on a plurality of electronic signatures. CONSTITUTION: A transmitting and receiving module(133) receives an electronic signature from a plurality of user terminals. A group signature generation module(135) generates a group signature based on a plurality of electronic signatures. An authentication module(137) verifies the validity of the group signature by using public variables. The verification module includes an operating module(138) and an comparing module(139). An authentiction server(130) includes the transmitting and receiving module, the group signature generation module, and the verification module.