New certificateless signature scheme with message recovery
Yun Zhang · Computer Engineering and Applications Journal · 2013
The proposed certificateless public key cryptosystem resolves key escrow problem in the identity-based and certificate-based public key cryptosystem. Combined with the advantage of certificateless signature scheme, based on discrete logarithms problem and Lein Harn et al’s certificateless signature, a DL-based certificateless signature scheme with message recovery is proposed. The proposed scheme is secure against key escrow, and can reduce the computational cost, which improves its security and efficiency.