Forward-secure threshold signature scheme
Jianzhong Zhang · Computer Engineering and Applications Journal · 2009
In this paper,a forward-secure threshold signature scheme based on the Asmuth-Bloom threshold scheme is proposed. Its security is based on the difficulty of solving discrete logarithm in finite field and quadratic residue on some special conditions.The scheme can not merely guarantee the security of the signature in the past after the key is revealed,and the security of the one that can have guaranteed to sign at the present stage and signature not signed,thus can reduce the losses greatly.