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TDOA (time difference of arrival) location tracking resistant source location privacy protection routing method

A privacy protection, source location technology, applied in security devices, electrical components, wireless communications, etc., can solve the problem of not being able to protect source node location privacy for a long time, and achieve the effect of improving anti-location capability, ensuring security, and protecting location privacy.

Inactive Publication Date: 2014-12-17
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the defect of this method is that it can only deceive the attacker once. Even if multiple fixed deceptive nodes are deployed, the attacker can record the locations of these deceptive nodes without being deceived again, so this method cannot protect the source node for a long time. location privacy

Method used

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  • TDOA (time difference of arrival) location tracking resistant source location privacy protection routing method
  • TDOA (time difference of arrival) location tracking resistant source location privacy protection routing method
  • TDOA (time difference of arrival) location tracking resistant source location privacy protection routing method

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings. The present invention includes two working stages, the first stage is the source node initialization stage, and the second stage is the information forwarding stage. figure 1 It is the working flow chart of source node initialization in the present invention, figure 2 It is the working flow chart of sending messages between source node and common node in the present invention, image 3 It is the working flow diagram of node receiving message in the present invention.

[0024] The source location privacy protection routing method for anti-TDOA location tracking of the present invention has the following processing steps for source nodes and forwarding nodes:

[0025] Step 1, the source node initializes parameters n and k;

[0026] Step 2. The source node encrypts an original message and divides it into k-1 segments. The decryption key is placed in the kth se...

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Abstract

The invention discloses a TDOA (time difference of arrival) location tracking resistant source location privacy protection routing method. The method includes that a piece of complete information is encrypted prior to being divided into k-1 information segments through a source node, and a decryption key is contained in the kth segment; when one information segment is sent through the source node and a forwarding node, number of neighbor nodes is detected firstly, if the number of the neighbor nodes is less than a parameter n, the information segment is not sent, otherwise nodes in the current neighbor nodes are detected whether or not to be receiving nodes for other previous segments of the information, if yes, the current information segment is not sent, and the information segment is sent otherwise. According to the method, when the source node sends the last information segment, an attack node cannot perform location tracking on the source node without receiving all the previous k-1 information segments even though the attack node poses as a normal node and receives the last segment, so that location resistance of the source node is improved, and location privacy of the source node is protected.

Description

technical field [0001] The present invention relates to the technical field of network routing, and more particularly refers to a source node location privacy protection method based on message segmentation and limited forwarding to realize anti-TDOA location tracking. Background technique [0002] MANET (mobileadhocnet) is a wireless self-organizing network that is composed of mobile wireless nodes and can communicate with each other. This network is often used in environments such as environmental monitoring, disaster recovery, and survivor search and rescue where wired networks cannot be used or wired networks are difficult to function. In wireless communication, since the signal propagates in the shared communication medium, it is inevitable that electromagnetic signals can be received by non-target nodes. In some cases, there are attackers in these non-target nodes, and the attackers may cause harm and damage to the source node. On the one hand, the attacker hopes to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W40/02
Inventor 芦效峰鲁鹏李睿凡李蕾袁彩霞刘咏彬曲昭伟李晖
Owner BEIJING UNIV OF POSTS & TELECOMM
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