Keyphrases
- data hiding
- security issues
- encrypted data
- error correction
- security mechanisms
- spread spectrum
- spatial domain
- sensitive data
- information security
- tamper detection
- high capacity
- reversible data hiding
- secret data
- image scrambling
- privacy preserving
- data hiding scheme
- authentication protocol
- information hiding
- least significant bit
- secret message
- watermarking technique
- security requirements
- data embedding
- halftone images
- digital images
- multiresolution
- key management
- sensitive information