Keyphrases
Blockchain
100%
Electronic Health Records
100%
Fine-grained Access Control
100%
Electronic Health Record Data
100%
E-health System
100%
Token
75%
Elderly Care
75%
Access Time
50%
Data User
50%
Segmentation Algorithm
25%
Access Control
25%
Security Analysis
25%
Computation Overhead
25%
Time-varying Data
25%
Generation Time
25%
Time Dimension
25%
Healthcare Institutions
25%
Data Dimensions
25%
Regression Techniques
25%
Access number
25%
Access Rights
25%
Chosen-plaintext Attack
25%
Collusion Attack
25%
Ciphertext-policy Attribute-based Encryption (CP-ABE)
25%
Unlinkability
25%
Unforgeability
25%
Access Control Scheme
25%
Quality Healthcare Services
25%
Blockchain Technique
25%
Ciphertext Indistinguishability
25%
Cost Overhead
25%
Computer Science
Data Record
100%
Blockchain
100%
Grained Access Control
100%
User Data
50%
Data Generation
50%
Ciphertext
50%
Experimental Result
25%
Plaintext Attack
25%
Access Control
25%
Security Analysis
25%
segmentation algorithm
25%
Healthcare Service
25%
Time Dimension
25%
Attribute-Based Encryption
25%
Utmost Importance
25%
Access Control Schemes
25%
Healthcare Institution
25%
Access Rights
25%
Generation Time
25%