基于双线性对的可验证的门限签名方案

Verified Threshold Signature Scheme Based on Bilinear Pairing

基于椭圆曲线上的双线性对函数,提出一个新的门限签名方案.该方案有如下特点:利用Shamir秘密共享技术共享一个用户的私钥,而不是共享密钥管理中心生成的主密钥;具有椭圆曲线密码体制的"短密钥,高安全性"的特点;双线性对的出现减少了计算量使得系统更加简单有效;利用Gennaro可模拟的思想,证明了提出方案具有健壮性和不可伪造性.因此具有较高的安全性和实用性.

Based on the method of the pairings on elliptic curves,a new threshold signature scheme has proposed.The scheme includes a lot of property as follows： the private key is associated with an identity rather than share the master key,this scheme has the characteristic of short secret key with the elliptic curve cryptosystem,the appearance of the bilinear pairing has decreased the calculative amount,which can make the system more simple and effective,employing Grennaro＇s idea of simulatablity,the proposed scheme are proved to have the properties of robustness and unforgebility.So it can become safer and more practical.