Balancing the demands of reliability and security with linear network coding in optical networks
Balancing the demands of reliability and security with linear network coding in optical networks
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DOI：
10.1109/icc.2016.7511590
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发表时间：
2015-10
期刊：
影响因子：
--
通讯作者：
Anna Engelmann;A. Jukan
中科院分区：
文献类型：
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作者：
Anna Engelmann;A. Jukan
最近，光学层中的物理层安全性已经获得了显著的牵引力。光网络中的安全威胁通常影响光传输的可靠性。线性网络编码（Linear Network Coding，LNC）可以同时抵御窃听和干扰造成的误传输等安全威胁。LNC可以混合原始数据，使攻击者无法理解，还可以通过编码冗余来扩展原始数据，从而保护数据免受干扰攻击注入的错误。在本文中，我们研究的有效性LNC平衡可靠传输和光网络的安全性。为此，我们结合联合收割机的编码过程与数据流并行化的源，并提出和比较最佳的和随机的路径选择方法并行传输。研究表明，流并行化、LNC和路径选择随机化的结合提高了传输的安全性和可靠性。我们分析了所谓的灾难性安全威胁的网络，并表明，在传统的传输方案的情况下，在没有LNC，攻击者可以窃听或破坏整个秘密数据访问只有一个边缘的网络。
Recently, physical layer security in the optical layer has gained significant traction. Security threats in optical networks generally impact the reliability of optical transmission. Linear Network Coding (LNC) can protect from both the security threats in form of eavesdropping and faulty transmission due to jamming. LNC can mix original data to become incomprehensible for an attacker and also extend original data by coding redundancy, thus protecting a data from errors injected via jamming attacks. In this paper, we study the effectiveness of LNC to balance reliable transmission and security in optical networks. To this end, we combine the coding process with data flow parallelization of the source and propose and compare optimal and randomized path selection methods for parallel transmission. The study shows that a combination of flow parallelization, LNC and randomization of path selection increases security and reliability of the transmission. We analyze the so-called catastrophic security threat of the network and show that in case of conventional transmission scheme and in absence of LNC, an attacker could eavesdrop or disrupt a whole secret data by accessing only one edge in a network.