文档介绍：第 32 卷第 3 期计算机应用与软件 Vol32 2015 年 3 月 Computer Applications and Software (陕西师范大学计算机科学学院陕西西安 710062)收稿日期:2013 -10 -16。国家自然科学基金面上项目(6117319 0)。廖雪宁,硕士生,主研领域:网络编码。吴振强,教授。周异辉,讲师。摘要无线网络自身的广播特性决定了它更易受到攻击,网络编码的提出为抵御被动窃听攻击提供了新的思路。现有研究方法中,匿名路径建立过程需要很高的复杂性且编码矩阵不完全可逆,提出的新的区域推进机制能够降低匿名路径建立的复杂度,特殊的编码矩阵构造方法能够保证编码矩阵完全可逆和数据包在目的节点的无条件可解码性。分析结果表明,该方案不仅可以达到抵御被动窃听攻击的目的,确保通信的匿名性,而且可以在一定程度上减小通信过程中数据包的大小。关键词网络编码区域推进编码矩阵数据包大小中图分类号 TP39 文献标识码 A DOI: / NEW TYPE OF DATA TRANSMISSION SCHEMEFOR WORK CODINGLiao Xuening Wu Zhenqiang Zhou Yihui(School puter Science,Shaanxi Normal University,Xi’an 710062,Shaanxi,China)Abstract work is subject to various security attacks due to the broadcasting feature of its own,the presentation workcoding gives a new idea to resisting passive wiretapping existing study approaches,the construction process of anonymous pathrequires very plexity and the encoding matrices are pletely new areapromotion mechanism proposed in thepaper is able to lower plexity of anonymous path construction,and the special conformation method of encoding matrix can ensure pletely invertible and ensure the unconditional decodability of the packets at destination result shows that theproposed scheme can reach the goal of resisting the passive wiretapping attacks and guarantee the a