Intensity and State Estimation in Quantum Cryptography

Abstract

This paper describes how the communicating parties can employ intensity and state estimation to detect if the eavesdropper has siphoned off and injected photons in the received communication. This is of relevance in quantum cryptography based on random rotations of photon polarizations.

11 pages, 13 figures

References in corpus (5)

• Hacking commercial quantum cryptography systems by tailored bright illumination
• Trusted Certificates in Quantum Cryptography
• Variations on Kak's Three Stage Quantum Cryptography Protocol
• Classical Authentication Aided Three-Stage Quantum Protocol
• Noise Analysis for two Quantum Cryptography Protocols