标准模型下高效的异构签密方案

王彩芬; 李亚红; 张玉磊; 牛淑芬

doi:10.11999/JEIT160662

标准模型下高效的异构签密方案

doi: 10.11999/JEIT160662

2.
(西北师范大学计算机科学与工程学院兰州 730070) ②(西北师范大学数统学院兰州 730070)

基金项目:

国家自然科学基金(61163038, 61562077, 61662069), 甘肃省高等学校科研项目(2014-A011)，西北师范大学青年教师科研能力提升计划(NWNU-LKQN-14-7)

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出版历程
- 收稿日期: 2016-06-24
- 修回日期: 2016-12-13
- 刊出日期: 2017-04-19

Efficient Heterogeneous Signcryption Scheme in the Standard Model

2.
(College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China)

Funds:

The National Natural Science Foundation of China (61163038, 61562077, 61662069), Research Fund of Higher Education of Gansu Province (2014-A011), The Foundation for Excellent Young Teachers by Northwest Normal University (NWNU-LKQN-14-7)

摘要

摘要: 异构签密方案能够为不同安全域之间的数据通信提供机密性和认证性。分析现有的异构签密方案，都是在随机预言模型下可证安全的。基于此，该文提出一个在标准模型下从基于身份的密码到传统公钥设施的签密方案，利用计算Diffie-Hellman问题和判定双线性Diffie-Hellman问题的困难性，对该方案的机密性和不可伪造性进行了证明。通过理论和实验分析，该方案在计算成本和通信成本方面具有更高的效率。
- 异构签密 /
- 标准模型 /
- 基于身份的密码 /
- 传统公钥设施
Abstract: Heterogeneous signcryption scheme can ensure the confidentiality and the authentication?for data communication between different security domains. Some existing heterogeneous signcryption schemes are analyzed to be secure in the random oracle model. Based on this problem, an Identity-Based Cryptography (IBC) to Public Key Infrastructure (PKI) signcryption scheme is proposed. The proposed scheme has the confidentiality and the unforgeability under the Computational Diffie-Hellman (CDH) problem and the Decisional Bilinear Diffie-HellmanB (DBDH) problem. Through the theoretical and experimental analysis, both the computational costs and the communication overheads of the proposed scheme are more efficient.
- Heterogeneous signcryption /
- Standard model /
- Identity-Based Cryptography (IBC) /
- Public Key Infrastructure (PKI)

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参考文献(20)

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