The security issues involved with digital watermarking are discussed. In this regard, the computational complexity of detecting a known watermark that has passed through an unknown channel is presented. In a watermark system, the cryptographic keys play an important rule in data security. A watermark detection test to define the probability of correct detection, where the keys are shared between the encoder and detector but unavailable to the attacker, is also discussed.
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering
- Applied Mathematics