| 防失败签字安全性的理论分析 |
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| 引用本文： | 张清华,郑继明. 防失败签字安全性的理论分析[J]. 计算机工程与应用, 2003, 39(18): 153-155 |
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| 作者姓名： | 张清华 郑继明 |
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| 作者单位： | 重庆邮电学院计算机科学与技术学院,重庆,400065 |
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| 基金项目： | 重庆邮电学院青年教师科技基金资助项目(编号:A2002-19) |
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| 摘 要： | 防失败签字是一种十分安全的签字体制,即使攻击者得到签字密钥后也难以伪造签字。论文首先简要介绍了该签字方案的签字过程和验证过程,然后根据这些过程利用矩阵方程等对该签字体制进行理论分析并证明了该体制的安全性。最后得出结论:攻击者得到签字者密钥后成功伪造签字的可能仅为1/q。
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| 关 键 词： | 防失败签字 安全性 概率 矩阵方程 密钥 |
| 文章编号： | 1002-8331-(2003)18-0153-03 |
| 修稿时间： | 2002-06-01 |
Theoretic Analysis of Security for the Fail-stop Signature |
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| Zhang Qinghua Zheng Jiming. Theoretic Analysis of Security for the Fail-stop Signature[J]. Computer Engineering and Applications, 2003, 39(18): 153-155 |
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| Authors: | Zhang Qinghua Zheng Jiming |
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| Abstract: | The Fail-stop signature is a very secure system,even though the attacker gains signature key,it is difficult to forge signature.This paper at first introduces the signature process and validating process briefly,and then according to these processes analyses and proves the security of the system by the theories of matrix-equation.Finally this paper draws a conclusion:the possibility that attacker forges the signature successfully after it gains signature key only is1/q. |
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| Keywords: | Fail-stop signature Security Probability Matrix-equation Key |
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