摘要
利用椭圆曲线离散对数问题(ECDLP),设计了一个无可信中心(SDC)的(t,n)门限秘密共享方案。系统的初始化、组成员的私钥、公钥的产生都不需要SDC的参与,利用各成员之间的秘密共享值,构造了秘密共享矩阵,结合Lagrange插值定理,实现了(t,n)门限秘密共享。分析表明,该方案具有较高的安全性和一定的实用价值。
By means of Ellipse Curve Discrete Logarithm Problem(ECDLP),a (t,n) threshold secret sharing scheme based on ellipse curve cryptography is proposed in this paper.Systemic initialization,the private key and the public key are produced without SDC,the secret sharing matrix is built by the secret sharing value of each member's.At last a (t,n) threshold secret sharing scheme is realized by the matrix and Lagrange interpolation theorem.The scheme is security in theory and is suitable for the practice.
出处
《计算机工程与应用》
CSCD
北大核心
2008年第32期85-86,92,共3页
Computer Engineering and Applications
基金
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60772122)
安徽省教育厅自然科学研究重点项目(No.KJ2007A072)
安徽省教育厅自然科学研究项目(No.KJ2007B376ZC)。
关键词
椭圆曲线
秘密共享
门限方案
可信中心
Elliptic Curve Cryptography(ECC)
secret sharing
threshold scheme
trusted Share Distribution Center(SDC)