Short group signature with high efficiency under standard model

This paper constructed a two-level signature scheme based on BB signature based on SDH assumption. By making certain reasonable assumptions and applying the technique of non-interactive proof system, a full anonymous dynamic short group signature scheme with the standard model was presented. The scheme was proved to satisfy the secure request of BSZ model. Compared with the latest other schemes, the scheme is more efficient and of shorter length of group signature. It allows new member to join in the group dynamically, and the group manager cannot forge any member’s signature.