一种网络编码机密性保障机制——C-Coding  

C-Coding: confidentiality protection scheme for network coding

作　　者：朱馨培 寇应展[1] 王韬[1] 杨鸾[2] 

机构地区：[1]军械工程学院信息工程系 [2]中国人民解放军63886部队指挥自动化工作站

出　　处：《计算机应用研究》2015年第8期2415-2419,共5页Application Research of Computers

基　　金：国家自然科学基金资助项目(61173191)

摘　　要：为了解决现有网络编码的机密性保障机制不能抵御全局的窃听攻击,并且需要牺牲一定的带宽以实现香农安全的问题,提出了一种机密性保障机制C-Coding以抵御针对网络编码的全局窃听攻击。对随机线性编码的机密性进行了定量分析并运用于C-Coding。理论分析和攻击实验表明该机制可在全局窃听假设下为基于网络编码的传输提供较高的机密性保障。实验结果显示在密钥长度不小于13时,受遗传算法攻击时成功概率几乎为0。使用该机制能较好地保证基于编码的网络传输的安全高效。To solve the problem that the existing confidentiality protections could＇ t defend global eavesdropping attacks and it took some unnecessary bandwidth to ensure Shannon security, this paper proposed a confidentiality protection scheme named C- Coding. It quantitative analyzed and applied the confidentiality of random linear network coding in C-Coding. Modeling analysis and simulated attacks show that C-Coding can efficiently secure network coding based transmissions from global eavesdroppers. The result shows that the success probability by genetic algorithm attacks is nearly 0 when the key length is no less than 13. The scheme can ensure the safety and efficiency of network coding based transmissions.

关 键 词：网络编码 排列加密 香农安全 机密性保障 全局窃听 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]