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Safe distribution file system

A technology of distributed files and files, applied in transmission systems and key distribution, can solve the problems of interception, no design to resist replay attacks, etc., and achieve the effect of ensuring confidentiality

Inactive Publication Date: 2009-12-16
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a distributed file system, user logins, requests, and capabilities issued by the server are all transmitted in plain text, which is easily intercepted by eavesdroppers, and there is no design to resist replay attacks. User files are stored in plain text on the server , the system cannot provide effective security protection for user files

Method used

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  • Safe distribution file system
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Examples

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0022] refer to figure 1 , figure 1 It is a structural diagram of a secure distributed file system according to an embodiment of the present invention. As shown in the figure, the secure distributed file system of the embodiment of the present invention includes a client 10 , an authentication server (AS) 20 , a metadata server (MDS) 30 and an object storage device (OSD) 40 . Here, the metadata server 30 and the object storage device 40 have basic file system functions as described in the background art.

[0023] The authentication se...

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PUM

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Abstract

The invention relates to a safe distribution file system, which includes a registration server, a metadata server, an object storage apparatus and customer terminals. The registration server is used for verifying identity of customers, and providing content notes and a first session key for requesting access files by verifying the corresponding customer; the metadata server provides file notes for file access, head file and a second temporary session key to the corresponding customer according to the received directory notes and the access request ciphered by the first temporary session key; the object storage apparatus transmits cryptograph files to the corresponding customer according to the received file notes and the access request ciphered by the second temporary session key; and the customer terminals decipher cryptograph files using the access request corresponding to the first and the second temporary session key and through the head file for reading and writing of the corresponding customers. The invention can provide safe and effective guarantee to the access to the file of customers.

Description

technical field [0001] The invention relates to the field of distributed file systems, in particular to a secure distributed file system. Background technique [0002] The current distributed system model consists of two roles: object storage device (Object-basedStorage Device, OSD) and metadata server (Metadata Server, MDS). MDS undertakes the mapping between files and OSD, and the organizational relationship between files and directories, and provides all file system name domain operations, such as file search, file creation, and file and directory attribute processing. From the perspective of the client, MDS seems to be the logical window of the file, while OSD is the physical window of the file. When a user operates a certain file, the MDS will be mapped to the OSD, and the OSD can directly transfer the file with the client. [0003] MDS allows users to directly access objects, and MDS provides users with the ability to access objects contained in the file. OSD will fi...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08H04L9/32H04L9/08
Inventor 朱明奚宏生杨晓晶
Owner UNIV OF SCI & TECH OF CHINA
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