Keyphrases
- social networks
- user authentication
- keystroke dynamics
- authentication mechanism
- authentication systems
- password authentication
- social network analysis
- biometric recognition
- biometric authentication
- graphical password
- authentication scheme
- social media
- security analysis
- identity verification
- social networking
- online social networks
- community detection
- link prediction
- information security
- social interaction
- authentication protocol
- virtual communities
- data encryption
- smart card
- digital watermarking