计算机技术与发展Issue(2)：250-253,4.DOI:10.3969/j.issn.1673-629X.2013.02.064
一种数字签名私钥丢失后的安全保障方案
A Security Scheme of Solving Digital Signature Private Key Lost Situation
摘要
Abstract
The digital signature security relies on the security of the signer's private key,if the private key leaks out,all of the signatures from the private key will completely lost their credibility. A new scheme is proposed which adds a time parameter T and a trustworthy third-party in order to solve the problem of verification of the signature before the lost of the private key. It is suggested that the signer maintains a signature form,and a third-party also maintains one,and then periodically compare the two signature records,can make signer timely find lost private key. Analysis shows that,the new scheme can timely find the loss of the private key,and after the signer loses pri-vate key,still can guarantee the effectiveness of signature generated by private key before lost,is a safe and feasible digital signature scheme.关键词
数字签名/私钥/丢失/可信性Key words
digital signature/private key/lost/verification分类
信息技术与安全科学引用本文复制引用
王琪,缪祥华..一种数字签名私钥丢失后的安全保障方案[J].计算机技术与发展,2013,(2):250-253,4.基金项目
昆明理工大学科学研究基金(2007-29) （2007-29）
