An opportunistic network routing method and system based on encrypted fuzzy keywords

Abstract

The invention provides an opportunity network route method and system based on encrypted fuzzy keywords. The opportunity network route method includes the steps: S1, calculating fuzzy sets and trap door sets of subscribed interesting keyword sets, wherein the fuzzy sets and the trap door sets correspond to interesting keywords, S2, calculating the similarity between every two trap door sets through a similarity matching algorithm, S3, releasing nodes, extracting released interesting keyword sets according to the released content, calculating a search keyword set which corresponds to each interesting keyword in the released interesting keyword sets by means of a trusted third party, wherein the search keyword set is served as the control information of the released content, the control information and the encrypted released content are combined to form a released content package, and sending the released content package to all forwarding nodes which are connected with the released content package, and S4, establishing a route table with the route information of the released content package as the head portion and the identity label of the released content package as the tail portion after the forwarding nodes receive the subscribed interesting package.

Description

technical field [0001] The invention relates to information security technology in wireless network communication in the field of information science, in particular to an opportunistic network routing method and system based on encrypted fuzzy keywords. Background technique [0002] Opportunistic networks have the general characteristics of delay-tolerant networks, and use the encounter opportunities brought about by node movement to realize self-organizing networks for communication. The goal is to solve the problem of data communication in frequently interrupted networks. There are several obvious features in opportunistic networks: 1. Routing information cannot be obtained from end-to-end connections, and intermediate nodes must make routing decisions based on the information they obtain. 2. There is no clear goal. The goal is usually a node that meets a certain characteristic. It may belong to a certain area, or it may be able to complete the same function, or it may be ...

AI Technical Summary

Problems solved by technology

There are several obvious features in opportunistic networks: 1. Routing information cannot be obtained from end-to-end connections, and intermediate nodes must make routing decisions based on the information they obtain

2. There is no clear goal. The goal is usually a node that meets a certain characteristic. It may belong to a certain area, or it may be able to complete the same function, or it may be interested in a specific information.

Compared with opportunistic networks based on replication, opportunistic networks based on social context or message content are more suitable for promotion and application in people's daily life. query or index to build routing forwarded messages, which creates a situation where users have little knowledge of the content they care about and have to take a try-and-see solution, after submitting a full query to get the content, they Feeling kept in the dark, reducing user interactivity of opportunistic networks

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