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An Improved Ciphertext-Policy Attribute-Based Encryption Scheme in Power Cloud Access Control.
- Source :
- Applied Sciences (2076-3417); Oct2018, Vol. 8 Issue 10, p1836, 15p
- Publication Year :
- 2018
-
Abstract
- In power cloud environment, the existing Ciphertext-Policy Attribute-Based Encryption (CP-ABE) access control schemes, do not consider the generation of access structure and the existence of malicious users. To tackle these problems, a power cloud access control (PCAC) scheme is proposed, which improves the traditional CP-ABE access control model. Considering the heavy time consumption of CP-ABE, PCAC encrypts the symmetric key, instead of the raw data. PCAC combines the access tree and linear secret-sharing scheme (LSSS) to achieve the automatic generation and efficient operation of access structure. Additionally, an action audit phase, based on zero-knowledge verification was designed to defend against malicious users. The experiments proved that PCAC meets the requirement of fine-grained access control, in a power cloud. Compared with existing CP-ABE schemes, the PCAC scheme reduced about half of the time consumption, in the action audit phase and costs about one-third the time, in the data obtainment stage. [ABSTRACT FROM AUTHOR]
- Subjects :
- CLOUD computing
DATA encryption
MALWARE
Subjects
Details
- Language :
- English
- ISSN :
- 20763417
- Volume :
- 8
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Applied Sciences (2076-3417)
- Publication Type :
- Academic Journal
- Accession number :
- 132686658
- Full Text :
- https://doi.org/10.3390/app8101836