电子学报 ›› 2015, Vol. 43 ›› Issue (3): 447-453.DOI: 10.3969/j.issn.0372-2112.2015.03.005

• 学术论文 • 上一篇    下一篇

无线传感器网络中自修复密钥颁布机制中滑动窗口的动态性探讨

孙新江, 吴晓蓓, 黄成, 徐志良   

  1. 南京理工大学自动化学院, 江苏南京 210094
  • 收稿日期:2013-09-27 修回日期:2014-02-09 出版日期:2015-03-25
    • 通讯作者:
    • 吴晓蓓
    • 作者简介:
    • 孙新江 男,1989年5月出生于河南三门峡.博士研究生.主要研究方向为无线传感器网络安全、多源协作网络编码及其安全. E-mail:xinjiangsun@gmail.com;黄 成 男,1975年7月出生于江苏南通.博士研究生,讲师.主要研究方向为无线传感器网络、自动化检测技术. E-mail:hearthc@163.com;徐志良 男,1962年9月出生于浙江宁波.教授,硕士生导师.主要研究方向为为自动检测理论与技术、智能传感器与网络化技术. E-mail:hearthc@163.com
    • 基金资助:
    • 教育部博士点专项目基金咨助项目 (No.20113219110028); 江苏省自然科学基金资助项目 (No.BK2012803)

Exploring the Dynamic of Sliding Window for Self-Healing Key Distribution Schemes in Wireless Sensor Networks

SUN Xin-jiang, WU Xiao-bei, HUANG Cheng, XU Zhi-liang   

  1. School of Automation, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
  • Received:2013-09-27 Revised:2014-02-09 Online:2015-03-25 Published:2015-03-25
    • Supported by:
    • Program supported by Doctoral Fund of Ministry of Education of China (No.20113219110028); Natural Science Foundation of Jiangsu Province,  China (No.BK2012803)

摘要:

在很多自修复密钥颁布机制中,滑动窗口大小影响着密钥的修复性能和通信开销.本文利用概率知识,首次建立了滑动窗口和丢包率对节点密钥同步性能、组安全关联性能和安全服务性能的数学模型.设计了适应链路动态变化特性的滑动窗口选择机制,采用查找表方式优化了计算和存储开销.仿真验证了该机制具有动态适应性,可以高概率的保证网络的安全服务性能.与已有机制相比,所提机制显著降低了通信开销,具有可行性和高效性,进一步推动了自修复密钥颁布机制的实际应用.

关键词: 无线传感器网络, 自修复密钥颁布, 滑动窗口, 动态链路, 丢包率, 自适应

Abstract:

In many self-healing key distribution schemes, the size of sliding window affects both the self-healing capability and the communication overhead.With probability knowledge, the mathematical model is built, which reflects the influence of the size of sliding-window and packet loss rate on the performance of key synchronization, group security association and security service.Then, an adjustment mechanism of sliding window is proposed to adapt to the dynamic change of broadcast links, and a look-up table is utilized to reduce the computation and storage overhead.Simulation results show that the scheme proposed is dynamically adaptive, and guarantees the performance of security service with high probability.Compared with the existing schemes, the proposed scheme greatly reduces the communication overhead, and is more feasible and efficient.Meanwhile, it further promotes the application of self-healing key distribution.

Key words: wireless sensor networks, self-healing key distribution, sliding window, dynamic links, packet loss rate, self-adaptive

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