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Improving Optical Steganography Transmission Privacy by Imposing Phase Masks on Stealth Signals

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Abstract

Temporal phase modulation of spread stealth signals is proposed to improve optical steganography transmission privacy. It increases an eavesdropper’s difficulty of detecting and intercepting the stealth channel hidden under public transmission, even with dispersion compensation.

© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia

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