An Identity-Based Key-Insulated Signature Scheme Supporting Multiple External Devices
Huiyan Zhao · Journal of Qingdao University · 2012
A new identity-based key-insulated signature scheme supporting multiple external devices was proposed.In this scheme,n different and independent devices were introduced,which share the key evolution information in the way of(k,n) threshold secret sharin and any k devices of which can help the user complete the update of the temporary private key.The security of this scheme is improved greatly.