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Cache decision method for privacy protection of named data network based on k-anonymity

A named data network and privacy protection technology, which is applied in the field of caching decision-making based on k-anonymous named data network privacy protection, can solve the problems of insufficient privacy protection degree of caching strategy, high difficulty in constructing anonymous areas, and potential safety hazards, etc., to improve various performance, high cache hit rate, and reduced redundancy

Active Publication Date: 2018-12-18
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to construct an anonymous area and introduce additional lookup delays
Considering the problems of insufficient privacy protection, potential safety hazards and low performance of the current cache policy, the present invention is proposed

Method used

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  • Cache decision method for privacy protection of named data network based on k-anonymity
  • Cache decision method for privacy protection of named data network based on k-anonymity
  • Cache decision method for privacy protection of named data network based on k-anonymity

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Embodiment Construction

[0039] Before setting forth the specific embodiment, at first provide the meaning of each symbol and phrase used in the present invention:

[0040] The meaning of each symbol is as follows:

[0041] R i : Router node i, the unique identity of the node;

[0042] C x : content x;

[0043] u y : encrypted user y's flag;

[0044] CS: Content storage of the router, Content Store;

[0045] Re(R i ): cache replacement rate of router node i;

[0046] CST: Content State Table, Content State Table;

[0047] NST: Neighborhood State Table, Neighborhood State Table;

[0048] PIT: Pending Interest Table, Pending Interest Table;

[0049] FIB: forwarding information table, Forwarding Information Base;

[0050] NUP: neighbor update message, Neighbor update packages;

[0051] num of User / uReq: all requested content C i the number of users;

[0052] Interface: indicates the interface with the neighbor router, where 0 indicates the local router;

[0053] User Set / uSet: user set, co...

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Abstract

The invention relates to a cache decision method for privacy protection of named data network based on k-anonymity. The cache decision is only made at a node where a user sends a request, and a neighboring node to which the cache is to be cached is determined by the cache replacement rate of the node. Even if an attacker can know that someone has accessed the content recently, the attacker can notinfer which user accessed the content recently through which router because of the caching cooperation in the area, so the attacker can avoid detecting the privacy information of the requester, and the privacy of the requester can be effectively protected. Furthermore, the cache privacy is protected by extending the user anonymous area through neighbor cooperative caching. The router does not need to construct the anonymous area, and does not need to search the data in the anonymous area, which reduces the implementation difficulty of the anonymous area and the time delay for local users to obtain the data.

Description

technical field [0001] The invention relates to the technical field of named data network privacy protection, in particular to a k-anonymous named data network privacy protection cache decision-making method. Background technique [0002] With the continuous progress and development of Internet information technology, the main function of the Internet has become efficient and safe content acquisition and distribution. However, the initial TCP / IP-based network has defects such as insufficient IPv4 addresses, many network security holes, and low network service quality. The Internet of the TCP / IP network system also has a serious waste of resources, that is, there is a problem of a large amount of repeated content transmission. In order to solve the essential problems of TCP / IP network, a revolutionary future network architecture - Information-Centric Network (ICN) (Vasilakos A V, Li Z, Simon G, et al. Information-centric network: research challenges and opportunities [J]. J...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06
CPCH04L63/0421H04L63/20H04L67/568H04L67/5682
Inventor 柳毅李小燕凌捷
Owner GUANGDONG UNIV OF TECH
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