| 基于DLP的指定验证人的代理签名 |
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| 引用本文： | 李素娟. 基于DLP的指定验证人的代理签名[J]. 南京工业大学学报(自然科学版), 2006, 28(3): 100-103 |
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| 作者姓名： | 李素娟 |
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| 作者单位： | 南京工业大学,理学院,江苏,南京,210009;南京师范大学,数学与计算机科学学院,江苏,南京,210097 |
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| 摘 要： | 代理签名与指定验证人签名都是非常有用的密码学工具，在实际生活中有着广泛的应用。在代理签名中，原始签名人能将其数字签名的权力委托给代理签名人；而在指定验证人签名方案中，对于验证人却是有所限制的。文章结合两者的优点，利用基于离散对数的Schnorr签名方案构造了一个指定验证人的代理签名方案。本方案与其他方案相比，除了满足所必需的安全性之外，在代价及计算量上更为高效。
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| 关 键 词： | 代理签名 指定验证人签名 数字产品 电子商务 信息安全 |
| 文章编号： | 1671-7643(2006)03-0100-04 |
| 收稿时间： | 2005-05-30 |
| 修稿时间： | 2005-05-30 |
Designated-verifier proxy signature scheme based on DLP |
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| LI Su-juan. Designated-verifier proxy signature scheme based on DLP[J]. Journal of Nanjing University of Technology, 2006, 28(3): 100-103 |
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| Authors: | LI Su-juan |
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| Affiliation: | 1. College of Sciences, Nanjing University of Technology, Nanjing 210009, China; 2. Institute of Mathematics and Computer, Nanjing Normal University, Nanjing 210097 ,China |
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| Abstract: | Proxy signature and designated-verifier signature are useful tools in cryptography. They both have wide applications in practice. In proxy signature, an original signer can delegate his signature power to a proxy signer who signs a message on behalf of the original signer. In designated-verifier signature the verifier is restrictive. In this paper, based on DLP and a Schnorr signature scheme, a designated-verifier proxy signature scheme is presented, which satisfies the security properties of both proxy signature scheme and designated-verifier signature scheme. This scheme, apart from its security,is less expensive and more efficient than others. |
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| Keywords: | proxy signature designated-verifier signature digital product e-commerce information security |
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