Quantum Three-Pass protocol: Key distribution using quantum superposition states

This letter proposes a novel key distribution protocol with no key exchange in advance, which is secure as the BB84 quantum key distribution protocol. Our protocol utilizes a photon in superposition state for single-bit data transmission instead of a classical electrical/optical signal. The security of this protocol relies on the fact, that the arbitrary quantum state cannot be cloned, known as the no-cloning theorem. This protocol can be implemented with current technologies. KEYWORDS Cryptography, Key Distribution, No Key-Exchange, Quantum Superposition State

• Type: Journal
• Year: 2010
• Where: CORR
• Authors: Yoshito Kanamori, Seong-Moo Yoo
• Keywords: CORR 2010, Education, Key Distribution Protocol, Quantum Key Distribution, Superposition State