Forward-secure threshold signature scheme based on polynomial secret sharing
Haixing Zhao · Journal of Communications · 2009
Based on polynomial secret sharing, a new forward-secure threshold digital signature scheme was proposed. The scheme included a lot of property as follows: it was impossible to forge signature relating players to the past even if more than the threshold numbers of players are compromised, keep the public key fixed and update the secret keys at regular intervals, the scheme can tolerate mobile halting adversaries. Moreover, for assuming factoring is hard, it is for-ward-secure in random oracle model.