Authorized Deduplication of Encrypted data in Cloud

Authors

  • Prof. Milind B. Waghmare  Computer Science and Engineering, Government College of Engineering, Amravati , Maharashtra, India
  • Suhasini V. Padwekar   Computer Science and Engineering, Government College of Engineering, Amravati , Maharashtra, India

DOI:

https://doi.org//10.32628/CSEIT2062159

Keywords:

Authorized user, Cloud computing, Data Deduplication, Data privacy, Confidentiality

Abstract

Cloud computing technology is rapidly developing nowadays. The number of files stored and processed is increasing per day. This increase brings severe challenge in requirement of space, processing power and bandwidth. More than half of the data generated in the cloud is duplicate data. To handle this data, deduplication technique is used which eliminates duplicate copies of data. This removal of duplicate data increases storage efficiency and reduce cost. In this paper, we propose secure role re-encryption system which allows authorized deduplication of data and also maintains privacy of data. This system is based on convergent algorithm and re-encryption algorithm that encrypts the user data and assign role keys to each user. This system grants privileges to users in order to maintain ownership of each user so that authorized users can access the data efficiently. In this system management center is introduced where the file is being encrypted and role keys are generated to handle authorized requests. Role keys are stored in Merkle hash tree which maps relationship between roles and keys. Authorized user who has particular role-encryption key can access the file. Convergent algorithm and role re-encryption algorithm allows access of specific file without leakage of private data. Dynamic updating of user privileges is achieved.

References

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IInternational Journal of Scientific Research in Computer Science, Engineering and Information Technology

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Published

2020-04-30

Issue

Volume 6, Issue 2, March-April-2020

Section

Research Articles

License

Copyright (c) IJSRCSEIT

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Prof. Milind B. Waghmare, Suhasini V. Padwekar , " Authorized Deduplication of Encrypted data in Cloud , IInternational Journal of Scientific Research in Computer Science, Engineering and Information Technology(IJSRCSEIT), ISSN : 2456-3307, Volume 6, Issue 2, pp.541-546, March-April-2020. Available at doi : https://doi.org/10.32628/CSEIT2062159