Efficient and Provable Secure ID-based Threshold Signature Scheme

Gu Ke et al have studied efficient and secure identity-based signature scheme based on Paterson’s scheme in a standard model,which has proved to have a security reduction to CDHP assumption. An efficient identity-based threshold signature scheme based on Gu Ke’s signature scheme in standard model is shown. The scheme has proved to have a security reduction to CDHP assumption and the existential unforgeability under an adaptive choosen message attack. Comparing with other identity-based threshold signature scheme in standard model,the new scheme is more efficient.