一类前向安全签名方案的安全性分析  

Analysis of a kind of forward secure proxy signature schemes

作　　者：胡江红[1] 

机构地区：[1]宝鸡文理学院数学系,陕西宝鸡721013

出　　处：《电子设计工程》2015年第14期23-25,共3页Electronic Design Engineering

基　　金：国家自然科学基金(61402015);陕西省教育厅专项科研计划(2013JK0601);宝鸡市科技计划项目(2013R4-3);宝鸡文理学院科研计划重点项目(ZK14058)

摘　　要：前向安全理论可以有效减少因密钥泄漏带来的安全问题,通过对一类前向安全签名方案的安全性进行分析,指出这几个方案都不能抵抗伪造攻击,一旦签名者的签名密钥泄露,签名就不具备前向安全性.最后,总结了这些方案不安全的本质原因。Forward security can solve the problem that aroused for the reason of the secret keys exposure, through the security analysis of a kind of forward secure signature schemes, it is pointed out that these schemes didn＇t resist forgery attack, and once the proxy signer＇s private keys were exposure, the signature had not the characteristic of forward security at all. Finally, the essential reasons that aroused these schemes insecure are presented.

关 键 词：前向安全 代理签名 密钥更新 伪造攻击 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]