Two-way link security authentication method in wireless relay network

Abstract

The invention discloses a two-way link security authentication method for a wireless relay network. The wireless relay network comprises a terminal node, M relay equipment and a processing platform. The method is a solution to the problems of low operational capability and low security of the terminal node in a link with the relay equipment in a wireless sensor network. By the participation of the relay equipment, a part of computational load of two authentication parties is transferred to the relay equipment, so that the complexity of an authentication process is improved, and difficulty in the cracking of an attacker is greatly improved along with the addition of the relay equipment. Moreover, the relay equipment participates in the update of an authentication information flow by using own private information, so that the processing platform and the terminal node also can indirectly authenticate the legality of the identity of the relay equipment.

Description

technical field [0001] The present invention relates to network communication, in particular to a method for link bidirectional security authentication in a wireless relay network, which can realize bidirectional identity authentication and key update of a processing platform and a terminal node in a multi-hop link, and is suitable for relay equipment The wireless sensor network environment with limited computing power of terminal nodes can improve the security of two-way authentication. Background technique [0002] Most of the information collection devices applied to terminals in the Internet of Things environment are micro-sensors with relatively limited processing capabilities, such as RFID tags that have been put into use in the field of intelligent transportation, remote monitoring, and biological sensors used to collect and monitor patients’ vital sign information in the medical field. sensors etc. The computing and processing capabilities of these devices are usual...

AI Technical Summary

Problems solved by technology

[0004] When considering the security of the devices at both ends, the traditional solution only regards the relay device as a pure information forwarding device, which cannot make full use of the resources of the relay device to improve the overall security of the system.

[0005] In addition, in the traditional relay network, when the terminal node and the platform authenticate each other, the relay device rarely participates in the authentication process, but some methods regard the relay device as a node-by-hop authentication that is as important as the identity security of the terminal node , this process takes a long time

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