Experimentally feasible protocol for semiquantum key distribution

Abstract

Quantum key distribution (QKD) protocols make it possible for two quantum parties to generate a secret shared key. Semiquantum key distribution (SQKD) protocols, such as "QKD with classical Bob" and "QKD with classical Alice" (that have both been proven robust), achieve this goal even if one of the parties is classical. However, existing SQKD protocols are not experimentally feasible with current technology. Here we suggest a new protocol, "Classical Alice with a controllable mirror", that can be experimentally implemented with current technology (using 4-level systems instead of qubits), and we prove it to be robust.

6 pages

References in corpus (6)

• Quantum cryptography: Public key distribution and coin tossing
• Hacking commercial quantum cryptography systems by tailored bright illumination
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• Comment on "Quantum Key Distribution with Classical Bob"
• Attacks on Fixed Apparatus Quantum Key Distribution Schemes
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Cited by in corpus (8)

• Measure-resend semi-quantum private comparison without entanglement
• Semi-quantum dialogue based on single photons
• Semi-quantum key distribution with single photons in both polarization and spatial-mode degrees of freedom
• Semi-Quantum Key Distribution with High Quantum Noise Tolerance
• Attacks against a Simplified Experimentally Feasible Semiquantum Key Distribution Protocol
• Experimental Semi-quantum Key Distribution With Classical Users
• Security Proof Against Collective Attacks for an Experimentally Feasible Semiquantum Key Distribution Protocol
• Optical designs for realization of a set of schemes for quantum cryptography