We present several weaknesses in the key scheduling algorithm of RC4 when the secret key contains an initialization vector – a cryptographic scheme typically used by the WEP and WPA protocols to protect IEEE 802.11 wireless communications. First, we show how the previously discovered key recovery attacks can be improved by reducing the dependency between the secret key bytes. Then, we describe ...

With the increasing development of UAV technology, formation flight has also changed from single target task execution to multi-target cooperative execution. When is developing rapidly in direction clustering, there are too many external interference factors. Therefore, electromagnetic silence should be maintained for a long time whole flight, and number times when transmitting wave signals out...

Abstract In the actual bearing-only passive UAV positioning system, both controller and receiver are in non-standard positions. Three-point cannot be carried out simply by a geometric algorithm. This study introduces only information transmission without considering increasing complexity of system sensors. When circular formation conical UAVs abnormal positions to locate unit adjust it standard...

most of the researches do not differentiate between intuitive critic and passive one – in the field of features, applications and methods. this critical school is called emotional or passive critics which emphasizes aesthetics. thus sensitivity is not the only appliance to wisdom but is a mean to inspire happiness or unhappiness feeling. consequently the passive (critical) school is the result ...

The focus of studies in the field of passive walking has often been on straight walking, while less attention has been paid to the field of turning motions. In this paper, the passive motions of a finite width rimless wheel as the simplest 3D model of passive biped walkers was investigated with a focus on turning motions. For this purpose, the hybrid model of the system consisting of continuous...