Personalized dual hiding method based on location-based service privacy protection

Abstract

The invention discloses a personalized dual hiding method based on location-based service privacy protection. The personalized dual hiding method overcomes the defects that single-point leakage is caused by the adoption of a trusted third party in the prior art and location privacy or inquiry privacy is achieved singly. The personalized dual hiding method comprises the following steps of (1) obtaining background information, (2) selecting an alternative inquiry content set, (3) selecting an alternative inquiry region set, (4) generating a hiding space, (5) selecting a false inquiry location, (6) selecting false inquiry content, (7) constituting a request, and (8) sending the request. By the adoption of the k-anonymity technology, the 1-diversification technology and the space hiding technology, personalized dual privacy protection of location privacy and inquiry privacy of a mobile object is achieved.

Description

Technical field [0001] The present invention belongs to the field of communication technology, and further relates to a personalized dual stealth method based on location service privacy protection in the field of wireless network security technology. The present invention can be applied to a mobile social network based on location services to perform a stealth operation on a mobile object to realize privacy protection of the mobile object. Background technique [0002] In order to achieve high-quality and high-security privacy protection for mobile objects, traditional privacy protection methods require the participation of a trusted third party to protect the location privacy of mobile objects. The trusted third party is a security bottleneck that cannot be ignored, resulting in a single point Leakage problem. Privacy protection mainly involves two aspects of security issues, query privacy security issues and location privacy security issues. The existing privacy protection m...

AI Technical Summary

Problems solved by technology

The disadvantage of this patent is that, first of all, there is a trusted third party participating in this patent, that is, an anonymous server, which is a security and performance bottleneck

Secondly, this patent only protects the privacy of the location of the moving object, and does not take into account the security of the query content of the moving object. For active attacks, the attacker can use the query content of the moving object to analyze the more sensitive information of the moving object. information

Finally, the patent ignores the existence of background information, which can be used by attackers to analyze sensitive information of moving objects, causing great security risks

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