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28 November 2022 Cloud computing data security access control model using improved CP-ABE algorithm
Liang Tang
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Proceedings Volume 12503, International Conference on Network Communication and Information Security (ICNCIS 2022); 125030Z (2022) https://doi.org/10.1117/12.2657107
Event: International Conference on Network Communication and Information Security (ICNCIS 2022), 2022, Qingdao, China
Abstract
The current cloud computing data security access control model reduces the risk of data being maliciously modified, but it can’t change the local attributes, and lacks some flexibility in the dynamic update of permissions. An improved CP-ABE algorithm is applied to design a cloud computing data security access control model. Between the cloud computing server and data users, a collaborative private key management mode is established based on the single attribute authority architecture. Each user has the attribute set and the corresponding private key. The CP-ABE algorithm cannot revoke the authority of a single user. A revocation scheme is added to the CP-ABE algorithm. The data belongs to the master, changes the hidden cloud key and authorized user attributes, and updates the private key with new random parameters. The improved CP-ABE algorithm is applied to establish the access control model. After the user accesses, the public key is obtained, and the input public and private keys are converted by the conversion algorithm. The test results show that the design model can reduce the time of key encryption and decryption when increasing the number of user attributes, complete data security access with less energy consumption, and is conducive to the expansion of access attributes.
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Liang Tang "Cloud computing data security access control model using improved CP-ABE algorithm", Proc. SPIE 12503, International Conference on Network Communication and Information Security (ICNCIS 2022), 125030Z (28 November 2022); https://doi.org/10.1117/12.2657107
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KEYWORDS
Data modeling
Clouds
Computer security
Performance modeling
Computing systems
Data storage
Control systems
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