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1. 北京电子科技学院 北京100070
2. 西安电子科技大学 西安 710071
Published Online:2015-10,
Published:20 October 2015
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Huiyan Chen, Yong Yuan, Zongjie Wan, et al. A Forward-Secure Digital Signature Based on Elliptic Curve[J]. Telecommunications science, 2015, 31(10): 99-102.
Huiyan Chen, Yong Yuan, Zongjie Wan, et al. A Forward-Secure Digital Signature Based on Elliptic Curve[J]. Telecommunications science, 2015, 31(10): 99-102. DOI: 10.11959/j.issn.1000-0801.2015202.
具有前向安全的数字签名是一种重要的数字签名方案,其要求攻击者即使在 t 时段入侵系统获得签名密钥,也无法伪造 t 时段之前的签名。换句话说,前向安全数字签名确保了密钥泄露时段以前所有签名的有效性。基于椭圆曲线离散对数问题和大数分解问题,构造了一种基于椭圆曲线的前向安全数字签名方案,并且对方案的安全性和效率进行了系统的分析和证明。
The forward-secure digital signature is an important digital signature scheme.It requires that even if the attackers have already been given a signature key by invading a system in t time,it still can’t forge signatures before time t.In other words,the forward-secure digital signature provides an assurance that any signatures in the previous periods are still valid before the key compromises.Based on the elliptic curve discrete logarithm problem and the factoring problem,a forward-secure digital signature scheme was put forward,and the safety and efficiency of the program was analyzed and proved systematically.
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