| 基于RSA的密钥门限共享优化方案的设计实现 |
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| 引用本文： | 刘佳,庄毅.基于RSA的密钥门限共享优化方案的设计实现[J].计算机工程与应用,2005,41(36):149-151,186. |
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| 作者姓名： | 刘佳 庄毅 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,南京,210016;南京航空航天大学信息科学与技术学院,南京,210016 |
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| 基金项目： | 国家“十五”预研基金项目（编号：41801150201）;航空基金项目（编号：04c52009）资助 |
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| 摘 要： | CA是网络中通信双方所共同信任的第三方,其安全是信息传输安全的前提基础,文章讨论了CA私钥的安全存储方案,使系统在受到一定攻击或者出现某些故障的情况下仍然可以正常工作。文章重点对基于RSA算法的(m,n)密钥共享方案进行优化,推导证明了在保证系统高容错性前提下私钥拆分分组数目最小值的计算公式并,提出子密钥分发规则,最后通过实验对系统性能进行了分析。
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| 关 键 词： | 密钥共享 容错 数字签名 RSA算法 CA |
| 文章编号： | 1002-8331-（2005）36-0149-03 |
| 收稿时间： | 2005-08 |
| 修稿时间： | 2005-08 |
Design and Implementation of a Key Share Optimization Scheme Based on RSA |
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| Liu Jia,Zhuang Yi.Design and Implementation of a Key Share Optimization Scheme Based on RSA[J].Computer Engineering and Applications,2005,41(36):149-151,186. |
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| Authors: | Liu Jia Zhuang Yi |
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| Affiliation: | Nanjing University of Aeronautics and Astronautics,Nanjing 210016 |
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| Abstract: | CA(Certification Authority) is an institution that A and B should both believe when they are communicating with each other.Keeping CA's private key security is the basic of network communication's security.This paper discusses about the methods of saving CA's private key and makes CA working normally even when a few of its components have some troubles.This paper is emphasis on optimization of(m,n) key share scheme and then it puts forward the minimum of w and the approach to distribute sub key.Finally it analyzes system performance according to the experiments. |
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| Keywords: | key share fault tolerant digital signature RSA CA |
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