ID-Based Ring Signature against Continual Side Channel Attack

The security of the signature scheme is destroyed because its secret information system leaked due to side channel attack. Ring has good application value, which can provide more flexibility and complete anonymity. It be used in some systems such as anonymous authentication ad hoc networks, electronic voting crypto coin based on blockchain. Because attack, private key ring may exposed, cause insecurity. We present a against continuous symmetry ring, user’s identity privacy protection. proposed completely secure without random oracle model disclosure rate close 1/3. Through dual technique, existential unforgeability unconditional anonymity are proved composite order group subgroup decision assumption.