Results 11 to 20 of about 753 (173)

Blockchain-Enabled Privacy-Preserving Access Control for EHRs Sharing With Optimized User and Attribute Revocation

open access: yesIET Information Security
Electronic health records (EHRs) have become a crucial application in cloud computing environments, necessitating advanced privacy-preserving access control mechanisms. Ciphertext policy attribute-based encryption (CP-ABE) is a widely recognized solution
Khanadech Worapaluk, Somchart Fugkeaw
doaj   +2 more sources

A keyword searchable attribute-based encryption scheme with attribute update for cloud storage. [PDF]

open access: yesPLoS ONE, 2018
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

open access: yesInternational Journal of Distributed Sensor Networks, 2020
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]

open access: yes, 2011
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]

open access: yesJisuanji gongcheng, 2018
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]

open access: yesPLoS ONE, 2018
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

open access: yesIEEE Access, 2017
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

Revocable Ciphertext-Policy Attribute-Based Encryption in Data Outsourcing Systems from Lattices

open access: yesJisuanji kexue yu tansuo, 2020
Attribute-based encryption mechanism is widely used in outsourcing environment because of its charac-teristics of “one-to-many” communication. However, users attributes often change dynamically.
YU Jinxia, YANG Chaochao, ZHANG Qichao, YAN Xixi
doaj   +1 more source

Efficient Privacy-Preserving Access Control of Mobile Multimedia Data in Cloud Computing

open access: yesIEEE Access, 2019
With the nature of allowing the encryptor to define the access policy before encrypting a message, Ciphertext-policy attribute-based encryption (CP-ABE) has been widely adopted as a primitive to design cloud-assisted mobile multimedia data sharing system.
Qi Li   +4 more
doaj   +1 more source

Unified Ciphertext-Policy Weighted Attribute-Based Encryption for Sharing Data in Cloud Computing

open access: yesApplied Sciences, 2018
With the rapid development of cloud computing, it is playing an increasingly important role in data sharing. Meanwhile, attribute-based encryption (ABE) has been an effective way to share data securely in cloud computing.
Wei Li   +4 more
doaj   +1 more source

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