Abstract:

On the basis of Chameleon hash and D.Boneh’s one round multi-party key agreement protocol, a multi-designated verifiers signature scheme was proposed. In the scheme, the signature can be verified independently by each of the n designated verifiers designated by the signer and no one else than the designated person can be convinced by this signature even if one of the designated verifiers reveals the secret value. The security analysis of the proposed scheme shows that it satisfies non-transferability, unforgeability, privacy of signer's identity and has low computational cost.

Key words: multi-designated verifiers signature, multilinear map, privacy of signer’s identity