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Multi-attribute collaborative caching method for information center network cache privacy protection

An information-centric network and privacy protection technology, applied in the field of multi-attribute collaborative cache decision-making, can solve problems such as exposure of retrieval privacy, user cache privacy security threats, etc., to reduce privacy leakage, reduce cache redundancy, and improve network performance.

Active Publication Date: 2020-09-04
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the cache mechanism of the information center network will expose the retrieval privacy of the content requester, which poses a great threat to the user's cache privacy security.

Method used

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  • Multi-attribute collaborative caching method for information center network cache privacy protection
  • Multi-attribute collaborative caching method for information center network cache privacy protection
  • Multi-attribute collaborative caching method for information center network cache privacy protection

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] The present invention analyzes the cache privacy leakage problem of the information center network, and proposes a multi-attribute cooperative cache decision-making method for information center network cache privacy protection based on the existing cache privacy protection method and utilizing cooperative cache between nodes.

[0020] The present invention realizes the attribution uncertainty of cached content, reduces the possibility of cached privacy leakage, improves network performance, improves cache hit rate, and reduces retrieval time delay and average hops.

[0021] The present invention collects the future popularity of the request content of the nodes along the way, the node betweenness, the node hop count, and the node cache pressure by using the interest packet to form a four-tuple information set, and then uses the TOPSIS algorithm to hit the node (...

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Abstract

The invention belongs to the technical field of information center network cache privacy protection, and particularly relates to a multi-attribute collaborative cache decision-making method for information center network cache privacy protection. The method comprises the following steps of: collecting four kinds of information of future popularity, node betweenness, node hop count and node cache pressure of request contents of nodes along the way by using an interest packet to form a quadruple information set; judging the quadruple information in a hit node by using a TOPSIS algorithm to obtain an optimal node of cached data content; and the content requested by the user is stored in the optimal cache node by utilizing the returned hop count information, so that the cache redundancy can bereduced, the network performance is improved, and the attribution uncertainty of the cache content is increased, thereby reducing the cache privacy leakage of the user and protecting the cache privacy of the user.

Description

technical field [0001] The invention belongs to the technical field of information center network cache privacy protection, and in particular relates to a multi-attribute cooperative cache decision-making method oriented to information center network cache privacy protection. Background technique [0002] The biggest feature of the information center network is the caching mechanism of the intermediate nodes. Each network device is used as a high-speed cache. The cached content is public and open, which greatly improves the network performance, but it is followed by the leakage of cache privacy. question. The attacker can judge whether the corresponding content information is stored in the cache of the intermediate node through the response time of the request, so as to obtain the historical access information of the neighbor node, and complete the purpose of privacy snooping and behavior speculation of the neighbor node. Therefore, the cache mechanism of the information ce...

Claims

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Application Information

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IPC IPC(8): G06F16/2455G06F21/60H04L12/725H04L12/751H04L29/08H04L45/02
CPCG06F16/24552H04L45/306H04L45/02G06F21/60H04L67/563H04L67/568Y02D30/50
Inventor 杨武苘大鹏吕继光王巍玄世昌王龙娜
Owner HARBIN ENG UNIV
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