How to construct pseudorandom permutations from pseudorandom functions
SIAM Journal on Computing - Special issue on cryptography
Information Hiding Techniques for Steganography and Digital Watermarking
Information Hiding Techniques for Steganography and Digital Watermarking
A Scalable Architecture for Modular Multiplication Based on Montgomery's Algorithm
IEEE Transactions on Computers
On the Implementation of a Hardware Architecture for an Audio Data Hiding System
Journal of Signal Processing Systems
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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 theexistence of the message, he will not be able to recover it. In other words a covert or subliminal communication channel is opened between two persons who possess a secret key to reassemble its contents. In this article, we propose a video or audio steganographic model in which the hidden message can be composed and inserted in the cover in real-time. This is realized by designing and implementing a secret key steganographic microarchitecture employing Field Programmable Gate Arrays FPGA.