Radio sensor access control method based on key chain

Abstract

The invention is based on five highly-effective sensor network access control modes: which are one-way key chain access control, multi key chain access control, Merkle tree-based access control, expanded Merkle tree access control, and an mode of canceling the key chain of captured users with Merkle. The method uses said five access control modes to reduce the storage expense of sensor node and increase the flexibility and expandability of access control so as to support mass users to access network. The invention is compatible with current sensor network data broadcast protocol.

Description

Keychain-based access control method for wireless sensors technical field The invention belongs to the technical field of network communication, relates to wireless ad hoc network security technology, specifically utilizes the principle of a one-way key chain (the key chain is used in the following to replace the one-way key chain) and a Merkle tree, and proposes an energy-efficient The wireless sensor network (WSN) access control method based on the key chain solves the problem of user access control in the wireless sensor network, that is, users with legal identities can send requests to the sensor network, and get a response from the network, rejecting illegal user access. Background technique The sensor network is composed of a large number of small, cheap, battery-powered sensor nodes with wireless communication and monitoring capabilities. These nodes are densely deployed in the monitoring area to achieve the purpose of monitoring the physical world. Wireless sensor...

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Problems solved by technology

This access control method uses a one-way keychain

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