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Pairing-based CP-ABE with constant-size ciphertexts and secret keys for cloud environment
- Source :
- Computer Standards & Interfaces. 54:3-9
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Ciphertext-policy attribute-based encryption (CP-ABE) scheme can be deployed in a mobile cloud environment to ensure that data outsourced to the cloud will be protected from unauthorized access. Since mobile devices are generally resource-constrained, CP-ABE schemes designed for a mobile cloud deployment should have constant sizes for secret keys and ciphertexts. However, most existing CP-ABE schemes do not provide both constant size ciphertexts and secret keys. Thus, in this paper, we propose a new pairing-based CP-ABE scheme, which offers both constant size ciphertexts and secret keys (CSCTSK) with an expressive AND gate access structure. We then show that the proposed CP-ABE-CSCTSK scheme is secure against chosen-ciphertext adversary in the selective security model, and present a comparative summary to demonstrate the utility of the scheme. Since mobile devices are generally resource-constrained and cloud services are Internet-based and pay-by-use, a key feature in ciphertext-policyAttribute-based encryption (CP-ABE) should be constant sizes for secret keys and ciphertexts.In this paper, we propose a new pairing-based CP-ABE scheme, which offers both constant size ciphertexts and secret keys (CSCTSK) with an expressive AND gate access structure.We then show that the proposed CP-ABE-CSCTSK scheme is secure against chosen-ciphertext adversary in the selective security model, and demonstrate its utility.
- Subjects :
- mobile cloud computing
Computer science
Cloud computing
Data_CODINGANDINFORMATIONTHEORY
02 engineering and technology
Computer security
computer.software_genre
Encryption
0202 electrical engineering, electronic engineering, information engineering
Access structure
business.industry
020206 networking & telecommunications
constant-size ciphertexts
ciphertext-policy attribute-based encryption
Computer security model
lightweight mobile devices
Symmetric-key algorithm
Hardware and Architecture
020201 artificial intelligence & image processing
business
Constant (mathematics)
Law
computer
Mobile device
Software
AND gate
constant-size secret keys
Subjects
Details
- ISSN :
- 09205489
- Volume :
- 54
- Database :
- OpenAIRE
- Journal :
- Computer Standards & Interfaces
- Accession number :
- edsair.doi.dedup.....26dd82100d3f6f47bd1bb5bb303a1504