τ-Access policy: Attribute-based encryption scheme for social network based data trading

2021 ◽  
Vol 18 (8) ◽  
pp. 183-198
Author(s):  
Shamsher Ullah ◽  
Lan Zhang ◽  
Muhammad Wasif Sardar ◽  
Muhammad Tanveer Hussain
Keyword(s):  
Social Network ◽  
Encryption Scheme ◽  
Access Policy ◽  
Attribute Based Encryption

scholarly journals Modified Ciphertext-Policy Attribute-Based Encryption Scheme with Efficient Revocation for PHR System

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Hongying Zheng ◽  
Jieming Wu ◽  
Bo Wang ◽  
Jianyong Chen
Keyword(s):  
Cloud Storage ◽  
Personal Health Record ◽  
Storage System ◽  
Personal Health ◽  
Encryption Scheme ◽  
Promising Technique ◽  
Access Policy ◽  
Attribute Based Encryption ◽  
Role Based ◽  
Ciphertext Policy

Attribute-based encryption (ABE) is considered a promising technique for cloud storage where multiple accessors may read the same file. For storage system with specific personal health record (PHR), we propose a modified ciphertext-policy attribute-based encryption scheme with expressive and flexible access policy for public domains. Our scheme supports multiauthority scenario, in which the authorities work independently without an authentication center. For attribute revocation, it can generate different update parameters for different accessors to effectively resist both accessor collusion and authority collusion. Moreover, a blacklist mechanism is designed to resist role-based collusion. Simulations show that the proposed scheme can achieve better performance with less storage occupation, computation assumption, and revocation cost compared with other schemes.

scholarly journals Updatable Ciphertext-Policy Attribute-Based Encryption Scheme With Traceability and Revocability

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 66832-66844 ◽  
Author(s):  
Zhenhua Liu ◽  
Jing Xu ◽  
Yan Liu ◽  
Baocang Wang
Keyword(s):  
Encryption Scheme ◽  
Attribute Based Encryption ◽  
Ciphertext Policy

scholarly journals Attribute-based encryption scheme with multi-keyword search and supporting attribute revocation in cloud storage

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0205675 ◽  
Author(s):  
Shangping Wang ◽  
Lisha Yao ◽  
Yaling Zhang
Keyword(s):  
Cloud Storage ◽  
Keyword Search ◽  
Encryption Scheme ◽  
Attribute Based Encryption
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