Keyphrases
- public key
- image authentication
- security model
- security analysis
- secret message
- digital signature
- data hiding
- secret key
- public key cryptography
- signature scheme
- private key
- authentication scheme
- information hiding
- secret data
- jpeg images
- diffie hellman
- authentication protocol
- least significant bit
- encryption scheme
- elliptic curve cryptography
- spread spectrum
- hidden information
- data embedding
- public key cryptosystem
- information security
- blind signature scheme
- real time
- provably secure
- public key infrastructure
- spatial domain
- frequency domain