A distributed storage system and its file sharing method

Abstract

The invention discloses a distributed storage system and a file sharing method thereof, belonging to the technical field of computer memory and information security; the distributed storage system solves the problems that the existing secure storage system has complicated key management and the encrypt file has too large cost for sharing. The distributed storage system comprises a client, a server, a security manager and a key server and is established on the operation system for supporting the POSIX interface; the client is connected with the security manager and the key server respectively through the local area network. The distributed storage system sets the special key server management key, and the security manager only manages the file key number, so that the security defect and large file re-encryption cost caused by directly or indirectly exposing the file key to the share use are avoided, and the security and whole performance of the system are improved; the distributed storage system and the file sharing method effectively solve the problems that the key management is complicated, and the encrypt file has too large sharing load, and the distributed storage system is suitable for constructing the security storage system with large scale and high performance.

Description

technical field [0001] The invention belongs to the technical field of computer storage and information security, and in particular relates to a distributed storage system and a file sharing method thereof. Background technique [0002] With the rapid development of computer technology and network technology, the informatization of enterprises, institutions, and governments is getting higher and higher, and the amount of information data is increasing exponentially, such as: scientific research calculation and simulation, virtual reality, weather forecast, etc. Huge amounts of new data are generated every day. Human society is becoming more and more dependent on data information, so data information has become the most important asset, and the storage system as the place where data information is stored has naturally become the center of the entire information system. The storage system is constantly developing from local direct connection to networked, distributed, and clo...

AI Technical Summary

Problems solved by technology

[0013] The invention provides a distributed storage system and a file sharing method thereof, which solve the problems of complex key management and excessive encryption file sharing overhead existing in the existing security storage system centered on a security manager or metadata server

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