Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (9): 75-76.
• 网络、通信、安全 • Previous Articles Next Articles
WANG Yongfeng1,ZHANG Jianzhong2
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王永峰1,张建中2
Abstract: Cryptanalysis of a designated verifier proxy blind signature scheme with message recovery shows that it exists follow security flaws:Verifiability of the signature scheme is not valid in view of error in module computation;On the point of proxy signer,the scheme doesn’t meet the blind nature;the proxy signer can sign any message,that is to say the scheme doesn’t meet unmisusability.
Key words: message recovery, designated verifier, strong blind signature
摘要: 对一个具有消息恢复的指定接收者的代理盲签名方案提出安全分析,指出方案存在以下安全缺陷:由于模运算错误,使得方案不满足可验证性;对代理签名者而言,不满足方案的盲性;代理签名者可以生成对任意消息的有效签名,即方案不满足不可滥用性。
关键词: 消息恢复, 指定验证者, 强盲签名
WANG Yongfeng1,ZHANG Jianzhong2. Security analysis of proxy blind signature scheme[J]. Computer Engineering and Applications, 2011, 47(9): 75-76.
王永峰1,张建中2. 一个代理盲签名方案的安全性分析[J]. 计算机工程与应用, 2011, 47(9): 75-76.
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http://cea.ceaj.org/EN/Y2011/V47/I9/75