Multi-layer encryption privacy protection method for content-centric network

Abstract

The invention discloses a multi-layer encryption privacy protection method used for content-centric networking. The multi-layer encryption privacy protection method comprises the steps that: a requester sends an interest package used for creditability validation to a publisher of content, and the publisher responds to the requestor; the requestor sequentially uses a publisher public key and a router public key for encrypting the requested interest packet, and sends the requested interest packet to a router; the router decrypts the requested interest packet by using a private key to obtain information it needs, and then forwards the requested interest packet to the next-layer router until the requested interest packet is sent to the publisher; the publisher decrypts the requested interest packet by using a publisher private key, validates the creditability of the requester, responds to the requested interest packet when the validation passes, and sends data to the router; and the router decrypts a data packet by using a private key to obtain response data, and forwards the response data to the next-level router until the response data is forwarded to the requester. The multi-layer encryption privacy protection method adopts the public keys for encryption, is relatively high in security, and can protect the privacy of the requestor and the publisher to a greater extent.

Description

Technical field [0001] The present invention relates to the research field of content CITIC network, and in particular to a multi-layer encryption privacy protection method for content center network. Background technique [0002] With the rapid development of the Internet, the traditional IP network architecture has exposed many drawbacks, and it has been difficult to meet the current development requirements of the Internet. In order to adapt to the development of the times, since 2006, domestic and foreign academic circles have carried out research on new network architecture, including the data-oriented network architecture (DONA, data-oriented network architecture) proposed by UC Berkeley RAD Laboratory (KOPONEN T ,CHAWLA M,GON CB,et al.A data-oriented(and beyond)network architecture[A].Proceedings of the ACM SIGCOMM2007Conference[C].Kyoto,Japan,2007.181-192.), content proposed by Palo Alto Research Center Central Network (CCN, content-centric networking) (European Union.Pr...

AI Technical Summary

Problems solved by technology

2) In the content privacy leak, each data packet has the signature of the publisher to ensure that the requester can confirm that the returned data is the data requested by him, but the name of the content data packet is not encrypted and protected

The disadvantage is that the requester and the router need to maintain a large number of keys, the publisher's privacy is easy to leak, and it cannot prevent illegal interest packets from being responded

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