Zhengping Jin

TL;DR: A secure and efficient two-factor mutual authentication and key agreement scheme to reduce the computational cost and provide the patient anonymity by employing the dynamic identity is proposed.

TL;DR: An outsourced dynamic provable data possession scheme, which migrates frequent auditing task to an external auditor to reduce clients’ verification overhead, and simultaneously provides log audit mechanism with lower computation burden for clients to prevent from dishonest auditor is proposed.

TL;DR: A construction for realizing circuit ciphertext-policy attribute-based hybrid encryption with verifiable delegation, which achieves security against chosen-plaintext attacks under the k-multilinear Decisional Diffie-Hellman assumption and an extensive simulation campaign confirms the feasibility and efficiency of the proposed solution.

TL;DR: A new PECK scheme based on pairings, where no pairing operations are involved in the encryption and trapdoor phases and no secure channel is needed between server and users is proposed.