UWB-ED: Distance Enlargement Attack Detection in Ultra-Wideband
UWB-ED: Distance Enlargement Attack Detection in Ultra-Wideband
复制标题
UWB-ED：超宽带中的距离放大攻击检测
DOI：
10.3929/ethz-b-000309346
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Srdjan Capkun
中科院分区：
文献类型：
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作者：
Mridula Singh;Patrick Leu;A. Abdou;Srdjan Capkun
移动自主系统、机器人和网络物理系统依赖于精确的定位信息。为了进行距离测量，两个设备交换信号，知道这些信号以光速传播，就可以用到达的时间来估计距离。现有的距离测量技术无法防止对抗性的距离扩大——这是一种极具破坏性的策略，对手在扭曲真实信号以防止接收器识别它之后，重新发布设备之间传输的延迟信号。攻击者不需要破解密码，也不需要破坏任何上层安全协议来进行攻击。目前还没有已知的解决方案来防止距离扩大。我们提出了\textit{超宽带放大检测}（UWB-ED），一种新的调制技术来检测距离放大攻击，并安全地验证两个相互信任的设备之间的距离。我们分析了对手注入信号以阻止/修改真实信号的UWB-ED。我们展示了UWB-ED如何成为802.15.4z低速率脉冲和5G标准的良好候选者。
Mobile autonomous systems, robots, and cyber-physical systems rely on accurate positioning information. To conduct distance-measurement, two devices exchange signals and, knowing these signals propagate at the speed of light, the time of arrival is used for distance estimations. Existing distance-measurement techniques are incapable of protecting against adversarial distance enlargement---a highly devastating tactic in which the adversary reissues a delayed version of the signals transmitted between devices, after distorting the authentic signal to prevent the receiver from identifying it. The adversary need not break crypto, nor compromise any upper-layer security protocols for mounting this attack. No known solution currently exists to protect against distance enlargement. We present \textit{Ultra-Wideband Enlargement Detection} (UWB-ED), a new modulation technique to detect distance enlargement attacks, and securely verify distances between two mutually trusted devices. We analyze UWB-ED under an adversary that injects signals to block/modify authentic signals. We show how UWB-ED is a good candidate for 802.15.4z Low Rate Pulse and the 5G standard.