Quantum Steganography via Coherent and Fock State Encoding in an Optical Medium

Abstract

Steganography is an alternative to cryptography, where information is protected by secrecy -- being disguised as innocent communication or noise -- rather than being scrambled. In this work we develop schemes for steganographic communication using Fock and coherent states in optical channels based on disguising the communications as thermal noise. We derive bounds on their efficiency in the case of an all-powerful eavesdropper, and provide explicit methods of encoding and error correction for the noiseless channel case.

arXiv comment17 pages, 7 figures

References in corpus (6)

• Advances in Quantum Cryptography
• Quantum Cryptography
• Quantum Steganography
• Practical route to entanglement-assisted communication over noisy bosonic channels
• Quantum Steganography over Noisy Channels: Achievability and Bounds
• Quantum Steganography over Noiseless Channels: Achievability and Bounds

Cited by in corpus (3)

• Steganographic Entanglement Sharing
• Quantum steganographic protocols using degenerate and entanglement-assisted quantum codes
• High Fidelity Artificial Quantum Thermal State Generation using Encoded Coherent States