| 改进的基于标准模型的一轮密钥交换协议 |
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| 引用本文： | 胡学先,刘文芬,兰巨龙.改进的基于标准模型的一轮密钥交换协议[J].电子与信息学报,2009,31(11):2720-2724. |
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| 作者姓名： | 胡学先 刘文芬 兰巨龙 |
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| 作者单位： | 1. 信息工程大学信息工程学院,郑州,450002
2. 国家数字交换系统工程技术研究中心,郑州,450002 |
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| 基金项目： | 国家863计划项目(2007AA01Z2a1)资助课题 |
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| 摘 要： | 该文提出了一个一轮密钥交换协议。协议是基于标准模型的，没有用到可能会影响协议安全性的真随机谕示模型(ROM)。基于DDH假设和伪随机函数簇两个基本的计算复杂度假设，可以证明协议是SK安全的，并且协议具有较低的通信复杂度和计算复杂度。
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| 关 键 词： | 密钥交换协议 可证明安全 标准模型 |
| 收稿时间： | 2008-11-24 |
| 修稿时间： | 2009-6-8 |
Improved One-Round Key Exchange Protocol in the Standard Model |
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| Hu Xue-xian,Liu Wen-fen,Lan Ju-long.Improved One-Round Key Exchange Protocol in the Standard Model[J].Journal of Electronics & Information Technology,2009,31(11):2720-2724. |
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| Authors: | Hu Xue-xian Liu Wen-fen Lan Ju-long |
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| Affiliation: | Department of Information Research, Information Engineering University, Zhengzhou 450002, China; National Digital Switching System Engineering & Technological Research Center, Zhengzhou 450002, China |
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| Abstract: | In this paper, a new authenticated key exchange protocol is proposed and its security is proved in the stronger version of the well-known CK model revised by Krawczyk. The analysis of the protocol is under standard model instead of Random Oracle Model (ROM). The proposal is based on the two basic computational complexity assumptions of DDH assumption and the existence of Pseudo Random Function (PRF) family. Compared with Boyd et al.’s protocol, the protocol possesses simpler communication and computation complexity. |
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| Keywords: | Key exchange protocol Provable security Standard model |
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