| 基于ID的一次性盲公钥的密码学分析 |
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| 引用本文： | 谢琪,于秀源. 基于ID的一次性盲公钥的密码学分析[J]. 浙江大学学报(理学版), 2005, 32(6): 644-645,720 |
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| 作者姓名： | 谢琪 于秀源 |
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| 作者单位： | 1. 浙江大学,数学系,浙江,杭州,310027;杭州师范学院,信息工程学院,浙江,杭州,310012
2. 杭州师范学院,浙江,杭州,310012;衢州学院,数理系,浙江,衢州,324000 |
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| 摘 要： | 为保护用户的隐私又可以避免用户犯罪,ZHANG等提出了基于ID的一次性盲公钥协议.本文给出了两种伪造攻击方案,任何注册用户和非注册用户都可以伪造私钥和证书并可以对任何消息产生有效的签名,而可信中心无法在法院授权的情况下揭示签名者的真实身份,从而指出他们的方案无法阻止用户犯罪,而且是全局可伪造的.
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| 关 键 词： | 盲签名 盲公钥 因子分解问题 离散对数问题 |
| 文章编号： | 1008-9497（2005）06-644-02 |
| 收稿时间： | 2004-01-16 |
| 修稿时间： | 2004-01-16 |
Cryptanalysis of one-off blind public key based on ID |
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| XIE Qi,YU Xiu-yuan. Cryptanalysis of one-off blind public key based on ID[J]. Journal of Zhejiang University(Sciences Edition), 2005, 32(6): 644-645,720 |
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| Authors: | XIE Qi YU Xiu-yuan |
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| Affiliation: | 1. Department of Mathematics, Zhejiang University, Hangzhou 310027, China; 2. School of Information and Engineering, Hangzhou Teachers College, Hangzhou 310012, China; 3. Hangzhou Teachers College, Hangzhou 310012, China; 4. Department of Mathematics and Physics, Quzhou College, Quzhou 324000, China |
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| Abstract: | To protect individual privacy and prevent from the consumer committing,ZHANG et al(2003) proposed one-off blind public key based on ID.However,two forgery attacks are proposed that any consumer and adversary forge the private-key and certificate,and generate the valid signature for any message,such that the trusted center cannot reveal the actual signer under the count's grant.That is,their scheme is universal forgery,and it cannot prevent from the consumer committing. |
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| Keywords: | blind signature blind public key factorization problem discrete logarithm |
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