Traceable and undeniable ciphertext-policy attribute-based encryption for cloud storage service
Ciphertext-policy attribute-based encryption is a promising mechanism with fine-grained access control for cloud storage system. However, there is a long-lasting problem of key abuse that a user may share its decryption key and a semi-honest authority ...
Gang Yu +4 more
doaj +2 more sources
Ciphertext-policy hierarchical attribute-based encryption with short ciphertexts
10.1016/j.ins.2014.01.035 Attribute-based encryption (ABE) systems allow encrypting to uncertain receivers by means of an access policy specifying the attributes that the intended receivers should possess. ABE promises to deliver fine-grained access control of encrypted data.
Deng, Hua +6 more
openaire +4 more sources
Hidden Ciphertext Policy Attribute-Based Encryption Under Standard Assumptions
We propose two new ciphertext policy attribute-based encryption (CP-ABE) schemes where the access policy is defined by AND-gate with wildcard. In the first scheme, we present a new technique that uses only one group element to represent an attribute, while the existing ABE schemes of the same type need to use three different group elements to represent
Tran Viet Xuan Phuong +2 more
openaire +4 more sources
Searchable and revocable multi-data owner attribute-based encryption scheme with hidden policy in cloud storage. [PDF]
With the development of outsourcing data services, data security has become an urgent problem that needs to be solved. Attribute-based encryption is a valid solution to data security in cloud storage.
Shangping Wang +2 more
doaj +1 more source
A keyword searchable attribute-based encryption scheme with attribute update for cloud storage. [PDF]
Ciphertext-policy attribute-based encryption (CP-ABE) scheme is a new type of data encryption primitive, which is very suitable for data cloud storage for its fine-grained access control.
Shangping Wang, Jian Ye, Yaling Zhang
doaj +1 more source
An enhanced media ciphertext-policy attribute-based encryption algorithm on media cloud
With the development of cloud computing, more and more video services are moving to the cloud. How to realize fine-grained access control of those data on cloud becomes an urgent problem. Attribute-based encryption provides a solution.
Hao Li +3 more
doaj +1 more source
Ciphertext-Policy Attribute-Based Broadcast Encryption Scheme [PDF]
In this work, we design a new attribute-based encryption scheme with the revocation capability. In the proposed schemes, the user (broadcaster) encrypts the data according to an access policy over the set of attributes, and a list of the identities of revoked users.
Asim, Muhammad +2 more
openaire +2 more sources
CP-ABE Scheme with Attribute Revocation Under Environment of Multi-attribute Authority [PDF]
For the attribute-based encryption scheme,a single authority has the problem of low efficiency and easy disclosure of user keys.Through the establishment of a decentralized attribute authority and agent reencryption technology,a Ciphertext-policy ...
ZHANG Yulei,LIU Wenjing,MA Yanli,WANG Caifen
doaj +1 more source
Attribute-based encryption scheme with multi-keyword search and supporting attribute revocation in cloud storage. [PDF]
We propose an attribute-based encryption scheme with multi-keyword search and supporting attribute revocation in cloud storage environment, in which binary attributes and AND-gate access policy are used. Our proposal enjoys several advantages.
Shangping Wang, Lisha Yao, Yaling Zhang
doaj +1 more source
Two-Factor Data Access Control With Efficient Revocation for Multi-Authority Cloud Storage Systems
Attribute-based encryption, especially for ciphertext-policy attribute-based encryption, can fulfill the functionality of fine-grained access control in cloud storage systems. Since users' attributes may be issued by multiple attribute authorities, multi-
Xiaoyu Li +4 more
doaj +1 more source

