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Keyphrases
Virus
100%
Blockchain
100%
Trace Model
100%
Infected People
100%
Privacy-preserving Blockchain
100%
Semi-honest
50%
Outsourced Decryption
50%
Storage Performance
25%
High Strain
25%
Security Goals
25%
Health Control
25%
Search Results
25%
Decrypt
25%
Data Accuracy
25%
Mobile Terminal
25%
User Data
25%
Plaintext
25%
Control Effort
25%
Private Data
25%
Cyber-attacks
25%
COVID-19
25%
Security Proof
25%
Local Load
25%
Encryption Algorithm
25%
Leakage Problem
25%
Resource-constrained Devices
25%
Fine-grained Access Control
25%
Collusion Attack
25%
Health Prevention
25%
Smart Contract
25%
Privacy Protection
25%
Prevention Efforts
25%
Privacy Leakage
25%
Cloud Server
25%
Personal Privacy Protection
25%
Local Differential Privacy
25%
Ciphertext-policy Attribute-based Encryption (CP-ABE)
25%
Data Management Architecture
25%
User Rights
25%
Service Providers
25%
Computational Performance
25%
Computational Overhead
25%
Trace-based System
25%
Poisoning Attack
25%
Privacy-preserving Scheme
25%
Multi-cloud Management
25%
Computer Science
Privacy Preserving
100%
Blockchain
100%
User Data
25%
Ciphertext
25%
Storage Performance
25%
Cyber Attack
25%
Grained Access Control
25%
Encryption Process
25%
Differential Privacy
25%
Smart Contract
25%
Privacy Protection
25%
Privacy Leakage
25%
Personal Privacy
25%
Experimental Result
25%
Data Management
25%
Mobile Terminal
25%
Decryption
25%
Attribute-Based Encryption
25%
Cryptography
25%
Service Provider
25%
COVID-19
25%