Lightweight confidential wireless body area network security data discovery and distribution method

Abstract

The invention discloses a light-weight and confidential wireless body area network security data discovery and distribution method, which includes the following three stages: the first stage: the base station groups sensor nodes into groups, and creates a one-way encryption for each sensor node group; The key hash chain, and assign the directional hash value of the hash chain to the sensor nodes of the corresponding group as the key; the second stage: the base station performs preprocessing of the data packet, that is, constructs the data packet, and then distributes the data packet; The third stage: after receiving the data packet, the sensor node restores the group information contained in the data packet and judges whether the received data packet is legal, and finally processes the received data packet according to the judgment result. The invention has the advantages of resisting sensor node compromise, high robustness in packet loss and out-of-sequence data packet transmission, no need for time synchronization between base station and sensor node, no need to use digital signature to guide identity verification process, allowing dynamic data and the like.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a lightweight and confidential wireless body area network security data discovery and distribution method. Background technique [0002] Wireless Body Area Networks (Wireless Body Area Networks or Wireless Body Sensor Networks) is a special sensor network that can detect and report the physiological status of patients in real time through human sensors implanted in the human body, and the data transmitted by medical staff through the network. , timely understand the patient's health status, and bring great convenience to the patient's health treatment. After the wireless body area network is deployed, in order to adjust the configuration parameters of the sensor nodes or distribute management commands and request information to the sensor nodes, it is often necessary to transmit data through a wireless link. [0003] In the existing wireless body area netw...

AI Technical Summary

Problems solved by technology

These existing wireless sensor network discovery and dissemination methods can ensure the reliability of data transmission, but they ignore the security of the data discovery and dissemination process

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