摘要
将数字签名与无可信中心门限秘密共享结合,在基于椭圆曲线密码学的ElGamal数字签名方案的基础上,提出了一个无可信中心的(t,n)门限数字签名方案。方案中不需要一个可信中心来管理密钥和分配秘密份额,t个或t个以上成员在不产生私钥的前提下产生数字签名;只在秘密产生阶段要求秘密通信,具备很好的安全性及执行效率。
With Combination of digital signatures and non-trusted threshold secret sharing,Based on ECC and ElGamal digital signature scheme,a threshold digital signature scheme without a trusted center is designed,.In this scheme,the trusted center to manage secret key and distribute secret shadows is eliminated,t or more than t members produce a digital signature.They don＇ t produce a secret key.Secret communication is required only in the secret-generating phase.The scheme is characterized by excellentsecurity as well as high efficiency.
出处
《微计算机信息》
2012年第2期143-144,128,共3页
Control & Automation
基金
基金申请人:侯整风:项目名称:无可信中心门限秘密共享的协同机理研究:基金颁发部门:安徽省自然科学基金委员会(090412051)
关键词
秘密共享
门限数字签名
椭圆曲线密码体制
secret sharing
threshold digital signature
elliptic curve cryptography
