Detection of Clone Attacks in WSNs-A Survey

A wireless sensor network is a collection of nodes organized in to a cooperative network. This network is prone to various attacks due to poor security. One of the attacks is clone attack in which an adversary captures some nodes and replicates them including the cryptographic in formation and deploys them in the network. This attack is very dangerous because they allow the attacker to leverage the compromise of a few nodes to exert control over much of the network. Several algorithms are developed to detect clone attacks, in static WSNs and mobile WSNs. Each one has its own advantages and disadvantages. This paper surveys these algorithms and compares their performance based on parameters like communication cost and memory.