CRYSTAL - Cryptography and Encoding in the Context of Steganographic Algorithms

Robustness is not only important to protect digital watermarks against modifying attacks but may also be necessary to transfer covered messages over disturbed channels. Examples: noisy radio links, lossy compression channels, network packet loss .

Encoding with redundancy is the preferred means to achieve robustness. As redundancy offers valuable information to an attacker, it also has to be hidden.


*In brief:*	Focus on robustness properties also for non-watermarking information hiding.


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