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System supporting downloading and using of distributed encrypted document

An encrypted file, distributed technology, applied in the direction of transmission system, digital transmission system, program loading/starting, etc., to achieve long-term stable file download speed, reduce storage requirements, and solve the effect of safe distribution problems

Active Publication Date: 2010-07-28
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Aiming at the deficiencies in the above-mentioned prior art, the main purpose of the present invention is to provide a system that simultaneously supports the download and use of distributed encrypted files, so as to solve the problem of safe distribution of P2P files and prevent illegal users from intercepting, tampering and illegally encrypting files. copy propagation

Method used

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  • System supporting downloading and using of distributed encrypted document
  • System supporting downloading and using of distributed encrypted document
  • System supporting downloading and using of distributed encrypted document

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Embodiment Construction

[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0058] Such as figure 1 as shown, figure 1 The structural block diagram of the system supporting distributed encrypted file download and use provided by the present invention includes at least one file publishing unit, at least one directory service unit and at least one file using unit. There can be any number of file publishing units, directory service units or file usage units. In an actual P2P network, any node can serve as a file publishing unit, directory service unit or file usage unit.

[0059] Wherein, the file release unit is used to encrypt the original plaintext file issued by encryption, adding a file header to the encrypted plaintext file to form an encrypted file container for downloading by the file use...

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Abstract

This invention discloses a system for supporting download and use of distributive ciphered files including: at least one file distribution unit, at least one catalog serving unit and at least one using unit, which solves safety distribution of P2P files and guarantees long and stable downloading speed of files by the downloading character of P2P files.

Description

technical field [0001] The invention relates to the technical field of computer network security, in particular to a system that simultaneously supports the download and use of distributed encrypted files. Background technique [0002] For a long time, the Internet that people are used to is server-centric, people send requests to the server, and then browse the information that the server responds to. The peer-to-peer network (P2P) will be user-centric, and all users are equal partners. Users separated by thousands of miles can share files, directories and even the entire hard disk on the hard disk through P2P. Everyone has shared what they think is the most valuable, which will greatly increase the value of information on the Internet. At the same time, the way of direct communication between P2P users makes people's ideal of an open and free Internet a reality. P2P has changed the rules of the Internet game and our lives. P2P technology allows all users to share vario...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00H04L12/24H04L29/06G06F17/30G06F9/445
Inventor 沙瀛谭建龙程学旗
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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