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Ciphertext full-text search system

A retrieval system, ciphertext technology, applied in special data processing applications, instruments, electronic digital data processing, etc., can solve the problem of ignoring the copy mechanism and so on

Inactive Publication Date: 2010-10-13
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the P2P storage system faces many problems such as node heterogeneity, node selfishness, node security, and node timeliness, most studies focus on the search and location mechanism, ignoring the replication mechanism.

Method used

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  • Ciphertext full-text search system

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Experimental program
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Embodiment Construction

[0151] The ciphertext full-text retrieval system and the ciphertext full-text retrieval system based on the dynamic successor tree index structure and their working principles of the present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0152] Such as figure 1 As shown, the system of the present invention includes: an original text processing module 100, a word segmentation module 200, an encryption module 300, a document ciphertext storage module 400, a ciphertext index module 500, a ciphertext retrieval module 600, a retrieval result processing module 700 and a system management module 800.

[0153] The working principle of the system is as follows:

[0154] (1) After the user realizes safe login by the system management module 800, the system judges whether the user selects to execute creating an index file or to perform a search function, and if it is a search, then enters the 15th step;

[0155] (2) The system conve...

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Abstract

The invention discloses a ciphertext full-text search system, comprising an original text processing module, a word segmentation module, an encrypting module, a file ciphertext storage module, a ciphertext index module, a ciphertext search module, a search result processing module and a system management module. The system adopts a ciphertext dynamic sequential tree index structure, a word segmentation group technology and a file local ciphertext dynamic sequential tree index updating method, and can realize index establishment, dynamic index updating, full-text search and substring query under a ciphertext state. The system also can realize peer-to-peer full text research for a safety overlay network in a P2P network and introduces an index file carbon copy replication mechanism based ona peer-to-peer network hubs and nodes. In addition, the ciphertext full-text search system has good expandability, solves the problems of distribution storage and search of massive data index files, increased no occupation of network bandwidth, and has high network resource utilization ratio.

Description

technical field [0001] The invention belongs to the fields of information retrieval and information security, and in particular relates to a ciphertext full-text retrieval system and a ciphertext full-text retrieval system based on a dynamic successor tree index structure. Background technique [0002] With the rapid development of information technologies such as computers and communications, various applications such as electronic media have surged, and the informatization of traditional industries has also rapidly expanded. The generation of industrial and scientific data automation and semi-automation has caused a large amount of various data to accumulate; on the other hand, storage The rapid development of technology has also made the growth momentum of the total amount of data more and more fierce. According to statistics, the total amount of information in the world has grown exponentially since the 1980s. It can be said that the speed at which information is genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 霍林黄保华胡和平覃海生黄俊文王力潘英花李瑞轩李德顺谭颖璐邢霄邹先泽
Owner GUANGXI UNIV
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