Fine-Grained Access Control for Cloud Data Sharing by Secure and Efficient Attribute-Revocable Ciphertext-Policy Attribute-Based Encryption
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 ...
متن کاملBlind Expressive Ciphertext Policy Attribute Based Encryption for Fine Grained Access Control on the Encrypted Data
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...
متن کاملAn Adaptively CCA-Secure Ciphertext-Policy Attribute-Based Proxy Re-Encryption for Cloud Data Sharing
A Ciphertext-Policy Attribute-Based Proxy Re-Encryption (CP-ABPRE) employs the PRE technology in the attribute-based encryption cryptographic setting, in which the proxy is allowed to convert an encryption under an access policy to another encryption under a new access policy. CP-ABPRE is applicable to many real world applications, such as network data sharing. The existing CP-ABPRE systems, ho...
متن کاملEfficient and Provable Secure Ciphertext-Policy Attribute-Based Encryption Schemes
In a ciphertext-policy attribute-based encryption (CP-ABE) scheme, the data is encrypted under an access policy defined by a user who encrypts the data and a user secret key is associated with a set of attributes which identify the user. A user can decrypt the ciphertext if and only if his attributes satisfy the access policy. In CP-ABE, since the user enforces the access policy at the encrypti...
متن کاملHIR-CP-ABE: Hierarchical Identity Revocable Ciphertext-Policy Attribute-Based Encryption for Secure and Flexible Data Sharing
Ciphertext Policy Attribute-Based Encryption (CPABE) has been proposed to implement the attribute-based access control model. In CP-ABE, data owners encrypt the data with a certain access policy such that only data users whose attributes satisfy the access policy could obtain the corresponding private decryption key from a trusted authority. Therefore, CP-ABE is considered as a promising fine-g...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Security and Its Applications
سال: 2016
ISSN: 1738-9976,1738-9976
DOI: 10.14257/ijsia.2016.10.10.27