On Mitigation of Active Eavesdropping Attack by Spoofing Relay
On Mitigation of Active Eavesdropping Attack by Spoofing Relay
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DOI：
10.1109/vtcspring.2017.8108518
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发表时间：
2017-06
期刊：
影响因子：
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通讯作者：
Jitendra Tugnait
中科院分区：
文献类型：
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作者：
Jitendra Tugnait
我们考虑检测欺骗中继攻击时分双工（TDD）多天线系统中的对手在全双工模式下操作，放大和转发的训练信号的合法接收器。在TDD系统中，可以使用反向训练来获取信道状态信息（CSI）。欺骗中继攻击污染信道估计阶段。因此，使用污染的信道估计设计的波束形成器可以导致一个显着的信息泄漏到攻击对手。最近提出了一种利用最小描述长度（MDL）准则来检测欺骗中继攻击的方法。在本文中，我们增加了这种方法与联合信道估计和安全波束形成，以减轻欺骗中继的影响。所提出的缓解方法是通过模拟说明。
We consider detection of spoofing relay attack in time-division duplex (TDD) multiple antenna systems where an adversary operating in a full-duplex mode, amplifies and forwards the training signal of the legitimate receiver. In TDD systems, the channel state information (CSI) can be acquired using reverse training. The spoofing relay attack contaminates the channel estimation phase. Consequently the beamformer designed using the contaminated channel estimate can lead to a significant information leakage to the attacking adversary. A recent approach proposed using the minimum description length (MDL) criterion to detect spoofing relay attack. In this paper we augment this approach with joint channel estimation and secure beamforming to mitigate the effects of pilot contamination by spoofing relay. The proposed mitigation approach is illustrated via simulations.