Node discovering method and system in communication network

Abstract

The invention provides a node discovering method and a node discovering system in a communication network. The method comprises the following steps that a source node sends discovery request messages to a next hop of node, and the discovery request messages carry the address information of the source node, the identity information of the source node, the address information of a target node and the challenge value generated by the source node; a node receiving the discovery request messages returns verification information, submitted to the source node by the node, to the source node; whether the node is a target node or not is judged according to the address information, and if the node is not the target node, the discovery request messages are transferred to the next hop of node of the node; after the source node receives the verification information returned by the target node, each node is verified according to the verification information submitted by each node; if the verification is completely passed, each node is determined to be trusted nodes. The method and the system provided by the invention have the advantages that the safety and the reliability of the communication transmission between network equipment can be ensured, and the communication delay is reduced.

Description

technical field [0001] The invention relates to the communication field, in particular to a node discovery method and system in a communication network. Background technique [0002] The emergence of communication networks enables people to communicate more quickly and exchange information more smoothly. As a main carrier of information transmission, the communication network has achieved unprecedented development. While its basic and overall status has become increasingly prominent, it is also constantly facing increasingly diverse security threats and an increasingly complex network security environment. Due to the characteristics of the Internet, such as openness, globality, virtuality, uncertainty of identity, decentralization, and equality, certain needs of people can be met, and it is precisely because of these characteristics of the Internet that many safe question. Especially for high-speed, large-scale, complex and multi-hop communication networks, network securit...

AI Technical Summary

Problems solved by technology

By adding password generation address, RSA (a public key encryption algorithm) signature, timestamp and current session label options, and introducing router authentication mechanism, the secure neighbor discovery protocol greatly improves the security of the neighbor discovery process, but this protocol still There are a lot of security problems, such as being unable to resist forged NDP message attacks

In recent years, researchers have also designed a variety of routing discovery protocols for adhoc (point-to-point) networks, but due to the local, small, and wireless characteristics of adhoc networks, they are not suitable for cross-domain, high-speed, and large-scale communication networks

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