标准模型下的服务器辅助验证代理重签名方案

杨小东; 李亚楠; 高国娟; 王彩芬; 鲁小勇

doi:10.11999/JEIT150966

标准模型下的服务器辅助验证代理重签名方案

doi: 10.11999/JEIT150966

基金项目:

国家自然科学基金(61262057, 61063041)，甘肃省科技计划(145RJDA325, 1308RJYA039)，国家档案局科技项目(2014-X-33)，兰州市科技计划项目(2013-4-22，2014-1-256)，甘肃省高等学校科研项目(2015A-011)，西北师范大学青年教师科研能力提升计划(NWNU-LKQN-13-23)

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- 被引次数: 0
出版历程
- 收稿日期: 2015-08-20
- 修回日期: 2016-01-04
- 刊出日期: 2016-05-19

Sever-aided Verification Proxy Re-signature Scheme in the Standard Model

Funds:

The National Natural Science Foundation of China (61262057, 61063041), Science and Technology Project of Gansu Province of China (145RJDA325, 1308RJYA039), Science and Technology Foundation of National Archives of China (2014-X-33), Science and Technology Project of Lanzhou (2013-4-22, 2014-1-256), Gansu Province Higher Educational Science and Technology Program (2015A-011), Youth Foundation of Northwest Normal University (NWNU-LKQN-13-23)

摘要

摘要: 代理重签名具有转换签名的功能，在云存储、数据交换、跨域身份认证等领域有广泛的应用前景。目前大多数代理重签名方案需要复杂的双线性对运算，无法适用于计算能力较弱的低端计算设备。为了提高代理重签名的签名验证效率，该文给出了双向服务器辅助验证代理重签名的安全性定义，并提出一个高效的服务器辅助验证代理重签名方案，在标准模型下证明新方案在合谋攻击和选择消息攻击下是安全的。分析结果表明，新方案有效减少了双线性对的计算量，大大降低了签名验证算法的计算复杂度，在效率上优于已有的代理重签名方案。
- 密码学 /
- 服务器辅助验证代理重签名 /
- 合谋攻击 /
- 不可伪造性 /
- 标准模型
Abstract: Proxy re-signature has the function of converting signature, and has extensive application prospects, such as cloud storage, data exchange, cross-domain identity authentication and so on. However, most proxy re-signature schemes require expensive bilinear pairing operations, which are not suitable for low-power devices. To improve the performance of proxy re-signature schemes, the security model of a bidirectional sever-aided verification proxy re-signature is presented. Furthermore, a sever-aided verification proxy re-signature scheme is proposed. This scheme is proven to be secure under collusion attacks and adaptive chosen message attacks in the standard model. Analysis results show that the proposed scheme effectively reduces the computation cost of pairing operation, and it greatly reduces computational complexity of signature verification algorithm. The proposed scheme is more efficient than the existing proxy re-signature schemes.
- Cryptography /
- Sever-aided verification proxy re-signature /
- Collusion attack /
- Unforgeability /
- Standard model

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参考文献(22)

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