An Pairing-based Threshold Signature
Liu Wen-hua · Aeronautical Computing Technique · 2009
Threshold signature scheme is an important digital signature of modern electronic business.In this paper,we adopt the pairings on elliptic curves,in order to reduce caculation.we adopt such a method that the private key associated with an identity rather than the master key is shared,to improve the security.Using Gennaro′s idea of simulatablity,we prove that the proposed scheme has the properties of robustness and unforgeability,therefore,the scheme is secure.Compared with the scheme proposed by Cheng et.al.recently,the new scheme is more efficient in computation.