Attribute-based Encryption for Fine-Grained Access Control on Secure Hybrid Clouds
نویسندگان
چکیده
منابع مشابه
Ciphertext-Policy Hierarchical Attribute-based Encryption for Fine-Grained Access Control of Encryption Data
In the ciphertext-policy attribute based encryption (CPABE) scheme, a private key holder is related with a set of attributes while the data is encrypted under an access structure defined by the data provider. In most proposed schemes, the characteristics of the attributes are treated as same level. While in the real world circumstance, the attributes are always in the different levels. In this ...
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Oblivious transfer with access control is a protocol where data in the database server are protected with access control policies and users with credentials satisfying the access policies are allowed to access them, whereas the database server learns nothing about the data accessed by users or about her credentials.Our scheme has the advantages as follows: First, our scheme maintains the privac...
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As cloud computing becomes prevalent, more and more sensitive data is being centralized into the cloud for sharing, which brings forth new challenges for outsourced data security and privacy. Attributebased encryption (ABE) is a promising cryptographic primitive, which has been widely applied to design fine-grained access control system recently. However, ABE is being criticized for its high sc...
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Attribute-based encryption (ABE) has potential to be applied in cloud computing applications to provide fine-grained access control over encrypted data. However, the computation cost of ABE is considerably expensive, because the pairing and exponentiation operations grow with the complexity of access formula. In this work, we propose a fully outsourced ciphertextpolicy ABE scheme that for the f...
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Cloud storage is widely used by organizations due to its advantage of allowing universal access with low cost. Attribute-based encryption (ABE) is a kind of public key encryption suitable for cloud storage. The secret key of each user and the ciphertext are associated with an access policy and an attribute set, respectively; in addition to holding a secret key, one can decrypt a ciphertext only...
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ژورنال
عنوان ژورنال: International Journal of Advanced Computer Science and Applications
سال: 2020
ISSN: 2156-5570,2158-107X
DOI: 10.14569/ijacsa.2020.0111047