Network covert channel is a technology that transfers information secretly through the computer network. The length-based covert channel is one of the most popular covert channels. Most of the existing length-based schemes are vulnerable to detections due to the abnormal statistical features of the covert traffic. In this paper, a Skype-based length covert… (More)
With electrical impedance tomography (EIT) system's development, more electrodes is required to get better detection performance. In this paper, we proposed a circuit design to switch channels to different electrodes quickly and stably.