Innovative survey of defense machinery against Sybil attacks over wireless ad hoc network on IoT

Integrating IoT with Wireless Ad hoc Network (WANET) capabilities can solve several problems. However, because they both rely on identity nodes to communicate with each other, they are both vulnerable to Sybil attacks. Sybil attackers illegally change into several different identities (attackers) to carry out various malicious activities such as damaging data aggregation, voting, and disrupting routing. Several defense machineries have been proposed for Sybil attacks on WANET, which are mostly based on cryptography, location or position, network behavior, resource testing, and trust. However, the drawbacks are that not all machinery are suitable for use in networks with limited resources. This paper presents a survey, classification, and comparison of various defense machineries that have been proposed for non-IoT WANETs. The author emphasizes the issue of the advantages and disadvantages of this defense mechanism when applied to the IoT infrastructure and how each method can effectively recognize properties of Sybil attacks.