A wireless sensor network is a collaborative network in which nodes perform their sensing task in one hand, and function as relay for transferring the data of other nodes on the other hand if necessary. It consists of many inexpensive wireless nodes, each having sensing capability with some computational and communication power. As sensor networks are coming to be of wide-spread deployment, sec...

Decentralized systems, such as distributed hash tables, are subject to the Sybil attack, in which an adversary creates many false identities to increase its influence. This paper proposes a routing protocol for a distributed hash table that is strongly resistant to the Sybil attack. This is the first solution to this problem with sublinear run time and space usage. The protocol uses the social ...

The paper signifies that the advancement with Wireless Sensor System (WSNs) have attracted lots of consideration in an area as well as in the learning community. Wireless networking technologies boast several attributes like selforganization, all round flexibility, risk-free transmission as well as future notification. Security is now a significant cover for various mission-critical application...

Due to the loosely coupled property of cloud computing environments, no node has complete knowledge of the system. For this reason, detecting a Sybil attack in cloud computing environments is a non-trivial task. In such a dynamic system, the use of algorithms based on tree or ring structures for collecting the global state of the system has unfortunate downsides, that is, the structure should b...

The test of a peer-to-peer file sharing network is how efficiently the objects are discovered and retrieved. One of the most important factors that contribute towards this is optimal replication of the objects across the network. One of the security threats to replication model is Sybil attack. In this paper we propose an approach that aims at detecting sybil identities in peer-to-peer file sha...

Abstract— A Sybil attacker is a malicious node which creates several false identities to itself. This attack is extremely harmfull to any voting or cooperation-based system, like a MANET. MANETs (Mobile Ad hoc Networks) are dynamically establiched, cooperation-based wireless networks, deployed without any infrastructure or centralized administration. Due to their dynamic environment, MANETs are...

Vehicular ad hoc networks (VANET) are a class of ad hoc networks build to ensure the safety of traffic. Trust and security remain a major concern in VANET since a simple mistake can have catastrophic consequence. A crucial point in VANET is how to trust the information transmitted when the neighbouring vehicles are rapidly changing and moving in and out of range. The main aim of this paper is t...

Multi-robot networks use wireless communication to provide wide-ranging services such as aerial surveillance and unmanned delivery. However, effective coordination between multiple robots requires trust, making them particularly vulnerable to cyber-attacks. Specifically, such networks can be gravely disrupted by the Sybil attack, where even a single malicious robot can spoof a large number of f...