Intensity and State Estimation in Quantum Cryptography

2013/02/07 by Sindhu Chitikela, Chitikela, Sindhu
Computer Science · Physics and Astronomy · #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #cs.CR #quant-ph

paper · pdf · doi:10.48550/arxiv.1302.1823

11 pages, 13 figures

arxiv created 2013/02/07 · openalex publication_date 2013/02/07 · arxiv updated 2013/02/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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.

Citations

• Classical Authentication Aided Three-Stage Quantum Protocol
• Trusted Certificates in Quantum Cryptography
• Variations on Kak's Three Stage Quantum Cryptography Protocol
• iAQC: The Intensity-Aware Quantum Cryptography Protocol
• Full-field implementation of a perfect eavesdropper on a quantum cryptography system
• Noise Analysis for two Quantum Cryptography Protocols

Related

• State Decoding in Multi-Stage Cryptography Protocols
• Improved Eavesdropping Detection in Quantum Key Distribution
• Quantum cryptography with polarization, phase and time encoding
• Quantum key distribution with realistic states: photon-number statistics in the photon-number splitting attack
• The quantum cryptography and the unambiguous measurement of quantum nonorthogonal states