Method for detecting Sybil attack

Abstract

Directed towards solving the problem of the Sybil attack faced by wireless sensor network routing protocol, the invention provides a method for detecting Sybil attack. In a way of carrying along with detection parameter message at the end of a data packet at the protocol execution stage, the method makes a synthetic judgment about the Sybil attack in the wireless sensor network through node energy and received signal strength value, and raises the detection precision through the mutual supervision between cluster-head nodes and member nodes. The invention provides a practical and feasible method for detecting Sybil attack for network, in particular for sensor network, and can effectively raise the safety of wireless sensor network, such as the detection to routing, resource distribution and deviant behavior, etc. The scheme has the advantages of simple realization, high detection rate and strong anti-attack ability, etc.

Description

technical field [0001] The invention is a new method for detecting Sybil (sorceress) attack in information network, especially wireless sensor network routing protocol, and belongs to the technical field of computer and information security. Background technique [0002] A wireless sensor network is a peer-to-peer network temporarily formed by mobile nodes without prior network infrastructure construction. It is a self-organizing and self-managing network. Each node in the network can join and exit at any time, the topology changes frequently, and because the communication coverage of each node is small, the communication between nodes often needs to go through multi-hop forwarding of other nodes. These characteristics make sensor networks not only have various threats such as information leakage, information tampering, replay attacks, and denial of service faced by general wireless networks, but also face sensor nodes that are easy to be physically manipulated by attackers,...

AI Technical Summary

Problems solved by technology

[0011] Simultaneous attack: The attacker may try to use all the identities it owns to participate in network communication at the same time. However, for a specific physical device, at a certain moment, it can only have one identity, and the attacker can use different identities by recycling. , and form the illusion of using multiple IDs at the same time

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