Identity-based Efficient Short Group Signature Scheme
Changshe Ma · Jisuanji gongcheng · 2011
This paper using the subgroup decision assumption proposes an identity-based efficient short group signature scheme by using the hierarchical identity-based group signature construction method.It allows new members to join in the group dynamically without updating the group public key and other group members' private signing keys.The length of the signature is independent of the amount of the group members,and the group manager can not forge any other member's signature.Experimental results show that,this scheme satisfies anonymity,unforgeability,traceability and non-frameability of the security requirements of group signature under Chosen Plaintext Attacks(CPA).This scheme is more efficient and the length of the signature is shorter.