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On generalized low-rate Denial-of-Quality attack against internet services

机译:关于针对互联网服务的广义低速率拒绝质量攻击

摘要

Low-rate denial of quality (DoQ) attacks, by sending intermittent bursts of requests, can severely degrade the quality of Internet services and evade detection. In this paper, we generalize the previous results by considering arbitrary attack intervals. We obtain two sets of new results for a Web server with feedback-based admission control. First, we model the Web server under the attack as a switched system. By proving the Lyapunov and Lagrange stability of the system, we show that the admission rate can always be throttled to a bounded low value. Second, we investigate the worst impacts of a DoQ attack by optimizing a utility function for the attacks. As a result, we obtain for the first time optimal attack patterns for both periodic and aperiodic attacks. Extensive simulation results also agree with the analytical results.
机译:通过发送间歇性请求突发,低速拒绝质量(DoQ)攻击会严重降低Internet服务的质量并逃避检测。在本文中,我们通过考虑任意攻击间隔来概括先前的结果。对于基于反馈的准入控制的Web服务器,我们获得了两组新结果。首先,我们将受到攻击的Web服务器建模为交换系统。通过证明系统的Lyapunov和Lagrange稳定性,我们表明可以始终将准入率调节到有界的低值。其次,我们通过优化攻击的效用函数来调查DoQ攻击的最坏影响。结果,我们首次获得了针对周期性和非周期性攻击的最佳攻击模式。大量的模拟结果也与分析结果一致。

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