Results 21 to 30 of about 25,658,882 (194)

Proposal for Quantum Ciphertext-Policy Attribute-Based Encryption

open access: yesCoRR, 2022
12 ...
Asmita Samanta   +2 more
openaire   +2 more sources

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   +3 more sources

Data Querying with Ciphertext Policy Attribute Based Encryption

open access: yesCoRR, 2022
Data encryption limits the power and efficiency of queries. Direct processing of encrypted data should ideally be possible to avoid the need for data decryption, processing, and re-encryption. It is vital to keep the data searchable and sortable. That is, some information is intentionally leaked.
Maryam Almarwani   +2 more
openaire   +2 more sources

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

Constant-Ciphertext-Size Dual Policy Attribute Based Encryption [PDF]

open access: yes, 2012
Dual-Policy Attribute Based Encryption (DP-ABE), proposed in 2009, is a combination of two variants, Ciphertext Policy-ABE (CP-ABE) and Key Policy-ABE (KP-ABE), where an encryptor can associate the data simultaneously with both a set of objective ...
Atsuko Miyaji   +3 more
core   +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

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

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

Enhancing Secure Communication in the Cloud Through Blockchain Assisted-CP-DABE

open access: yesIEEE Access, 2023
The use of encryption is essential to protect sensitive data, but it often poses challenges when it comes to locating and retrieving information without decryption.
G. Sucharitha   +4 more
doaj   +1 more source

An Outsourced Attribute-Based Encryption Scheme Supporting Attribute Revocation [PDF]

open access: yesJisuanji gongcheng, 2017
Traditional Ciphertext-Policy Attribute-Based Encryption(CP-ABE) schemes have large computational overhead in key generation,decryption and attribute revocation processes.Aiming at this problem,this paper proposes an outsourced CP-ABE scheme which ...
LIU Zhusong,PENG Jiapeng
doaj   +1 more source

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