Abstract: -In the well-known "prisoners' problem", a representative example of steganography, two persons attempt to communicate covertly without alerting the warden. One approach to achieve this task is to embed the message in an innocent-looking cover-media. In our model, the message contents are scattered in the cover in a certain way that is based on a secret key known only to the sender and receiver. Therefore, even if the warden discovers the existence of the message, he will not be able to recover it. …
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