Keyphrases
- digital signature
- watermarking technique
- smart card
- public key
- digital watermarking
- signature scheme
- digital images
- security mechanisms
- key management
- elliptic curve
- digital content
- data hiding
- watermarking algorithm
- data integrity
- copyright protection
- denoising
- information systems
- databases
- security requirements
- distributed databases
- low cost
- jpeg compression
- sensor networks
- wireless sensor networks
- feature vectors