计算机工程

• 安全技术 • 上一篇    下一篇

适用于空间DTN的非交互式密钥交换协议

杜瑞颖 1a,1b,周振玉 1a,1b,米兰·黑娜亚提 2   

  1. (1.武汉大学 a.计算机学院; b.空天信息安全与可信计算教育部重点实验室,武汉 430072;2.新疆广播电视大学远程教育学院,乌鲁木齐 830049)
  • 收稿日期:2015-04-03 出版日期:2016-04-15 发布日期:2016-04-15
  • 作者简介:杜瑞颖(1964-),女,教授、博士,主研方向为网络安全;周振玉、米兰·黑娜亚提,硕士。
  • 基金项目:
    国家自然科学基金资助项目“无线Mesh网络中跨层安全关键技术研究”(61272451)。

Non-interactive Key Exchange Protocol for Space DTN

DU Ruiying  1a,1b,ZHOU Zhenyu  1a,1b,Milan Heinayat i2   

  1. (1a.School of Computer; 1b.Key Laboratory of Aerospace Information Security and Trusted Computing of Ministry of Education,Wuhan University,Wuhan 430072,China; 2.Distance Learning College,Xinjiang Radio and TV University,Urumqi 830049,China)
  • Received:2015-04-03 Online:2016-04-15 Published:2016-04-15

摘要: 针对空间时延容忍网络高延时、连接易中断等特点,提出一种非交互式的密钥交换协议,并在随机预言模型下对其进行安全性证明。该协议无需用户交互即生成一个共享的对称密钥,可消除对传统公钥基础设施中证书的依赖,减少通信与存储开销,同时避免基于身份的公钥加密体制中存在的密钥托管问题。分析结果表明,该协议未使用耗时的双线性对运算,具有较高的计算效率,更适用于计算能力受限、能量资源宝贵的空间环境。

关键词: 时延容忍网络, 非交互式密钥交换, 无证书密码, 可证明安全, 随机预言模型

Abstract: The space Delay Tolerant Network(DTN) has characteristic such as high delay and frequent disconnectivity.Aiming at this problem,this paper designs a non-interactive key exchange protocol,and it is proven secure in the random oracle model.The proposed protocol enables two parties to agree on a symmetric shared key without requiring any interaction.The protocol eliminates the dependency on certificate used in Public Key Infrastructure(PKI) and avoids the key escrow problem in ID-based Public Key Cryptography(ID-PKC).Analysis result shows that the proposed protocol does not utilize the expensive pairing computation and achieves higher efficiency compared with other Non-interactive Key Exchange(NIKE) protocols, and thus proves to be suitable for the space environment with restricted computing and few power resource.

Key words: Delay Tolerant Network(DTN), non-interactive key exchange, certificateless cryptography, provable security, random oracle model

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