Quantum steganography using catalytic and entanglement-assisted quantum codes

• URL: http://arxiv.org/abs/2505.15869v1
• Date: Wed, 21 May 2025 12:58:57 GMT
• Title: Quantum steganography using catalytic and entanglement-assisted quantum codes
• Authors: Sanjoy Dutta, Nihar Ranjan Dash, Subhashish Banerjee, R. Srikanth,
• Abstract summary: Steganography is the technique for transmitting a secret message by employing subterfuge to conceal it in innocent-looking data.<n>We develop three steganographic protocols: first, a scheme based on catalytic quantum codes to minimize initial pre-shared resources; second, a scheme incorporating prior entanglement into QECCs in the form of possibly degenerate entanglement-assisted QECCs; third, a scheme that uses the phase bit of a pre-shared ebit, combined with QECCs.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Steganography is the technique for transmitting a secret message by employing subterfuge to conceal it in innocent-looking data, rather than by overt security measures as in cryptography. Typically, non-degenerate quantum error-correcting codes (QECCs) are used as the cover medium, with the stego message disguised as noise. As in cryptography, a large number of bits or ebits are pre-shared, in this case mainly in order to ensure the innocence effect. In this work we develop three steganographic protocols: first, a scheme based on catalytic quantum codes to minimize initial pre-shared resources; second, a scheme incorporating prior entanglement into QECCs in the form of possibly degenerate entanglement-assisted QECCs; third, a scheme that uses the phase bit of a pre-shared ebit, combined with QECCs.

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