| 强代理不可否认签名 |
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| 引用本文： | 吴晨煌,黄振杰. 强代理不可否认签名[J]. 计算机应用, 2006, 26(11): 2592-2595 |
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| 作者姓名： | 吴晨煌 黄振杰 |
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| 作者单位： | 漳州师范学院,数学与信息科学系,福建,漳州,363000;中国科学院软件研究所,信息安全国家重点实验室,北京,100080 |
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| 基金项目： | 福建省青年科技人才创新基金;国家重点实验室基金;福建省教育厅科技计划项目 |
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| 摘 要： | 代理签名使得原始签名人可以授权代理人代理其签名, 不可否认签名则使得只有签名人才能向第三方证实或否认签名的有效性。 将代理签名与不可否认签名组合到一起, 提出代理不可否认签名的概念, 给出一个代理不可否认签名方案。该方案在决策Diffie Hellman困难性假设下可证明是安全的。
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| 关 键 词： | 数字签名 代理签名 不可否认签名 |
| 文章编号： | 1001-9081（2006）11-2592-04 |
| 收稿时间： | 2006-05-07 |
| 修稿时间： | 2006-05-072006-07-11 |
Proxy undeniable signatures |
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| WU Chen-huang,HUANG Zhen-jie. Proxy undeniable signatures[J]. Journal of Computer Applications, 2006, 26(11): 2592-2595 |
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| Authors: | WU Chen-huang HUANG Zhen-jie |
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| Affiliation: | 1. Department of Mathematics and Information Science, Zhangzhou Normal College, Zhangzhou Fujian 363000, China; 2. State Key Laboratory of lnformation Security, Institute of Software of Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Proxy signatures allow an original signer to entrust a proxy signer to sign messages on behalf of him. Undeniable signatures ensure that only the signer can confirm or deny the validity of a given signature to the third party. For the need of some practical applications, the proxy signature and the undeniable signature were combined together, and a new concept of proxy undeniable signature was proposed. The proxy undeniable signature scheme's security could be proved under the decisional Diffie-Hellman assumption. |
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| Keywords: | digital signature proxy signature undeniable signature |
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