Keyphrases
- user authentication
- keystroke dynamics
- authentication mechanism
- authentication systems
- password authentication
- identity verification
- data model
- graphical password
- data encryption
- biometric authentication
- authentication scheme
- smart card
- biometric recognition
- authentication protocol
- database schema
- secure manner
- security analysis
- schema evolution
- information security
- key exchange protocol
- web server
- xml data
- lightweight
- metadata
- databases
- image authentication
- directory service
- security mechanisms
- database
- security services
- biometric data
- conceptual schema
- public key
- biometric systems
- xml schema