Quantum Three-Pass Protocol: Key Distribution Using Quantum Superposition States

Free registration required

Executive Summary

This letter proposes a novel key distribution protocol with no key exchange in advance, which is secure as the BB84 quantum key distribution protocol. The 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. Research on quantum computation has been getting more and more attention for the last two decades. It is known that, once a quantum computer is built, the existing popular public-key encryption algorithms (e.g., RSA, elliptic curve cryptography) may be compromised in polynomial time.

  • Format: PDF
  • Size: 172 KB