Certificateless linear homomorphic signature algorithm for cloud computing based on DDH assumption
Yuan Tian, Xuan Zhou · 2023
Aiming at the privacy protection problem in the cloud computing environment, a signature algorithm based on the Decision Diffie-Hellman (DDH) assumption and the discrete logarithm problem is designed when studying the Certificateless Homomorphic Signature (CLHS) technology. Our algorithm can resist pollution attacks from cloud computing users, collusion attacks from semi-honest participants, and malicious attacks from key generation centers. While protecting user privacy, our algorithm also ensures the efficient development of cloud computation server services.