Lightweight secrete discovery and dissemination method for wireless body area network safety data

A wireless body area network and security data technology, applied in the field of wireless body area network security data discovery and distribution, can solve the problems of ignoring data discovery and dissemination security

Active Publication Date: 2014-03-26
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Lightweight secrete discovery and dissemination method for wireless body area network safety data
  • Lightweight secrete discovery and dissemination method for wireless body area network safety data

Examples

Experimental program
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Embodiment

[0052] Such as figure 1 As shown, CoDrip is divided into three stages: system initialization, data packet preprocessing and data packet verification, specifically:

[0053] The first stage: the base station groups the sensor nodes, and creates a one-way key hash chain for each sensor node group, and distributes the directional hash value of the hash chain to the sensor nodes of the corresponding group as a key.

[0054] Phase 2: The base station performs pre-processing of the data packets, that is, constructs the data packets, and then distributes the data packets.

[0055] 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.

[0056] In the system initialization stage, we group the sensor nodes according to the hop distance between the sensor node and the base station, a...

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Abstract

The invention discloses a lightweight secrete discovery and dissemination method for wireless body area network safety data. The method includes the following stages that at the first stage, a base station performs grouping on sensor nodes, a one-way secrete key Hash chain is created for each sensor node group, and orientation Hash values of the Hash chains are distributed to the sensor nodes of the corresponding groups to serve as secrete keys; at the second stage, the base station executes preprocessing on data packets, and namely the data packets are established and then disseminated; at the third stage, after receiving the data packets, the sensor nodes recover group information included in the data packets, judge whether the received data packets are legal or not and finally process the received data packets according to a judging result. The method has the advantages of resisting sensor node compromise, being high in robustness in the aspects of packet loss and out-of-sequence of data packet transmission, not needing time synchronization between the base station and the sensor nodes and the process that digital signatures are used for guiding identity authentication and allowing dynamic data.

Description

technical field [0001] The 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, which can detect and report the physiological status of patients in real time through the human body sensors implanted in the human body. Data, timely understanding of the patient's health status, brings great convenience to the patient's health treatment. After the wireless body area network is deployed, in order to adjust the configuration parameters of sensor nodes or distribute management commands and request information to sensor nodes, it is often necessary to transmit data through wireless links. [0003] In the existing wireless body area network data discovery and distribution method, the sensor node pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04W84/18H04W12/06
Inventor 何道敬曾志超林涛
Owner SOUTH CHINA UNIV OF TECH
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