Keyphrases
- sensitive data
- privacy preserving
- data storage
- smart card
- third party
- security concerns
- information security
- sensitive information
- data sharing
- privacy preservation
- data privacy
- data confidentiality
- confidential data
- malicious users
- security threats
- protection mechanisms
- privacy protection
- database
- data management
- database systems
- personal data
- query processing
- information systems
- data sets