Efficient Design of Certificateless Chameleon Signature from Bilinear Pairing
Tejeshwari Thakur, Neetu Sharma, Birendra Kumar Sharma · International Journal of Database Theory and Application · 2014
Certificateless public key cryptography (CL-PKC), does not require the use of the certificate to guarantee the authenticity of public keys.It does rely upon the use of a trusted third party (TTP), who is in possession of a master key.CL-PKC does not suffer from the key escrow property.Thus, CL-PKC can be seen as a model for the use in public key cryptography.In this paper, we proposed a new certificateless Chameleon signature scheme based on bilinear pairings.The proposed scheme is more efficient than AL-Riyami and Pateson [10] schemes.And our scheme is un-forgeable under the hardness assumption of the q-strong Diffie-Hellman problem and Computational Diffie-Hellman problem.