Cloud-Assisted Ciphertext Policy Attribute Based Eencryption Data Sharing Encryption Scheme Based on BlockChain

Shufen NIU; Pingping YANG; Yaya XIE; Xiaoni DU

doi:10.11999/JEIT200124

Volume 43 Issue 7

Jul. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(7): 1864-1871

Shufen NIU, Pingping YANG, Yaya XIE, Xiaoni DU. Cloud-Assisted Ciphertext Policy Attribute Based Eencryption Data Sharing Encryption Scheme Based on BlockChain[J]. Journal of Electronics & Information Technology, 2021, 43(7): 1864-1871. doi: 10.11999/JEIT200124

Citation:

Shufen NIU, Pingping YANG, Yaya XIE, Xiaoni DU. Cloud-Assisted Ciphertext Policy Attribute Based Eencryption Data Sharing Encryption Scheme Based on BlockChain[J]. Journal of Electronics & Information Technology, 2021, 43(7): 1864-1871. doi: 10.11999/JEIT200124

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Cloud-Assisted Ciphertext Policy Attribute Based Eencryption Data Sharing Encryption Scheme Based on BlockChain

doi: 10.11999/JEIT200124 cstr: 32379.14.JEIT200124

1.
College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China
2.
College of Computer Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, China

Funds: The National Natural Science Foundation of China (61562077, 61662069, 61662071, 61772022), The Young Teacher’s Scientific Research Ability Promotion Program of Northwest Normal University (NWNU-LKQN-13-12)

Received Date: 2020-02-21
Rev Recd Date: 2020-12-08

Available Online: 2020-12-23

Publish Date: 2021-07-10

Abstract

Abstract

To solve the problem of data security and privacy preservation brought by the centralization of cloud storage, a cloud-assisted Ciphertext Policy Attribute Based Eencryption(CP-ABE) data sharing encryption scheme based on BlockChain(BC) is proposed. In this scheme, the symmetric key of the encrypted file is encrypted by attribute-based encryption and the encrypted file is uploaded to cloud server for realizing the data security and fine-grained access control. Searchable encryption technology is adopted to encrypt the keyword, and the keyword ciphertext is uploaded to the BlockChain. Keyword search is executed by the BlockChain to ensure the security of keyword ciphertext, which effectively solves the security problems existing in the cloud storage and sharing system. This scheme can satisfy the indiscernibility, trap indiscernibility and series resistance under the selective plaintext attack. Finally, the effectiveness of the scheme is verified by performance evaluation.
- BlockChain(BC),
- Attribute-based encryption,
- Searchable encryption,
- Fine-grained access control

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References(17)

References

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