网络编码的安全问题初探

网络编码打破了传统的独立比特不能再被压缩的传统理论,该理论指出在多播系统中,通过允许中间节点对数据进行编码组合,可以进一步的提高网络吞吐量。现今,虽然网络编码在抗搭线窃听、抗拜占庭攻击和网络纠错码等网络安全领域已展开应用,但仍需进一步发展。针对这一现象,这里对网络编码的安全问题进行综述并加以分析,同时针对网络编码较容易受到的一种攻击——网络污染攻击,指出全同态加密方案在解决该问题上的应用。

Exploration on Security of Network Coding

Network coding breaks the conventional theory on compression limitation of independent bits, this theory points out that in the multi-cast systems, a further improvement of network through put could be realized via permission of the center-node in processing data coding and combination. Nowadays, although the network coding is widely applied to network security domain, including anti-wire tapping, anti-Byzantine attack, and network error correction coding etc, it is necessary to further develop this technology. Therefore, this paper discusses and analyzes the security topics on network coding, and points out the application of fully homomorphic encryption in dealing with the network polluting attack-the vulnerable aspect of network coding.