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Distributed Storage System Security Key Technology Research and Implementation

Author: FengGuangZuo
Tutor: LiChunHua
School: Huazhong University of Science and Technology
Course: Computer System Architecture
Keywords: Encrypted Storage Access Control Administrator rights restrictions High performance
CLC: TP333
Type: Master's thesis
Year: 2011
Downloads: 53
Quote: 1
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Abstract


As storage technology continues to improve and the rapid development of computing power , storage systems gradually to the large-scale, high-concurrency direction, the storage system storage security also raised new demands. Traditional security measures on the storage system has been insufficient to meet the security needs of the current distributed storage . After analysis Plutus, SiRiUS security mechanisms such as the file system and its implementation , we found that these security mechanisms are implemented by its performance and size constraints , insufficient storage in a distributed environment remains high . And when all the data are stored in the whole system , the system administrator's permission restrictions is particularly necessary . There is large-scale distributed storage systems , high- concurrency , not all data needs to be encrypted and other features. Set against a distributed storage system security mechanism should allow the user demand for data encryption , to avoid non- sensitive data encryption overhead ; through the use of a security manager from the user directly involved in the process of encryption and decryption and key management problems , and through authority certificate cache, the system's access control overhead to a minimum , avoiding the impact on the system throughput . Through the separation of key with the key number , you can restrict the super administrator user privileges . Experiments show that the deployment of the security mechanisms in distributed storage system , the encrypted file read and write performance is limited by the current encryption and decryption speed limits ; while the file is not encrypted , the introduction of encrypted storage and access control policies on the storage system not large impact on the performance , while ensuring store security, not only to maintain the system's performance, but also provides flexible encryption granularity and friendly access.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Electronic digital computer (not a continuous role in computer ) > Memory
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