Proposes entanglement-based quantum steganography protocols via catalytic and entanglement-assisted QECCs, deriving upper and lower bounds on secrecy capacity without relying on eavesdropper ignorance assumptions.
(More generally, if secret rate is ks, then k = 2ks.) Further, Alice prepares a local ebit |Φ+⟩l1, l2
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Quantum steganographic protocols using degenerate and entanglement-assisted quantum codes
Proposes entanglement-based quantum steganography protocols via catalytic and entanglement-assisted QECCs, deriving upper and lower bounds on secrecy capacity without relying on eavesdropper ignorance assumptions.