A New Group Signature Scheme Based on Bilinear Pairings
Pang Zhi-bi · Microcomputer Information · 2009
At present,the electronic cash schemes always use the traditional digital signature cryptosystem or the identity-based public key cryptosystem. But there is two problem which is the certificates signed by third trusted party(TTP) are required to ensure the authenticity of the public keys of users or the key escrow of uses' private keys is inherent. We propose a new group signature scheme based on bilinear pairings. We settle the problem of key escrow when verifying with the bilinear pairings. The scheme reduces the process of verification and increases the rate and efficiency. It show that the scheme can effectively resist every attacks and safety when we analyze its security and feasibility.