Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise

Information security is increasingly important as society migrates to the information age. Classical cryptography widely used nowadays is based on computational complexity, which means that it assumes that solving some particular mathematical problems is hard on a classical computer. With the develo...

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Main Authors: Linsen Wu, Yuhua Chen
Format: Article
Language:English
Published: MDPI AG 2015-05-01
Series:Entropy
Subjects:
Online Access:http://www.mdpi.com/1099-4300/17/5/2919
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author Linsen Wu
Yuhua Chen
author_facet Linsen Wu
Yuhua Chen
author_sort Linsen Wu
collection DOAJ
description Information security is increasingly important as society migrates to the information age. Classical cryptography widely used nowadays is based on computational complexity, which means that it assumes that solving some particular mathematical problems is hard on a classical computer. With the development of supercomputers and, potentially, quantum computers, classical cryptography has more and more potential risks. Quantum cryptography provides a solution which is based on the Heisenberg uncertainty principle and no-cloning theorem. While BB84-based quantum protocols are only secure when a single photon is used in communication, the three-stage quantum protocol is multi-photon tolerant. However, existing analyses assume perfect noiseless channels. In this paper, a multi-photon analysis is performed for the three-stage quantum protocol under the collective-rotation noise model. The analysis provides insights into the impact of the noise level on a three-stage quantum cryptography system.
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spelling doaj.art-a01c9c4744a0471a885b07404ead684f2022-12-22T02:20:12ZengMDPI AGEntropy1099-43002015-05-011752919293110.3390/e17052919e17052919Three-Stage Quantum Cryptography Protocol under Collective-Rotation NoiseLinsen Wu0Yuhua Chen1Department of Electrical and Computer Engineering, N308 Engr. Bldg. 1, University of Houston, Houston, TX 77204-4005, USADepartment of Electrical and Computer Engineering, N308 Engr. Bldg. 1, University of Houston, Houston, TX 77204-4005, USAInformation security is increasingly important as society migrates to the information age. Classical cryptography widely used nowadays is based on computational complexity, which means that it assumes that solving some particular mathematical problems is hard on a classical computer. With the development of supercomputers and, potentially, quantum computers, classical cryptography has more and more potential risks. Quantum cryptography provides a solution which is based on the Heisenberg uncertainty principle and no-cloning theorem. While BB84-based quantum protocols are only secure when a single photon is used in communication, the three-stage quantum protocol is multi-photon tolerant. However, existing analyses assume perfect noiseless channels. In this paper, a multi-photon analysis is performed for the three-stage quantum protocol under the collective-rotation noise model. The analysis provides insights into the impact of the noise level on a three-stage quantum cryptography system.http://www.mdpi.com/1099-4300/17/5/2919quantum cryptographythree-stage quantum protocolmulti-photoncollective-rotation noise
spellingShingle Linsen Wu
Yuhua Chen
Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise
Entropy
quantum cryptography
three-stage quantum protocol
multi-photon
collective-rotation noise
title Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise
title_full Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise
title_fullStr Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise
title_full_unstemmed Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise
title_short Three-Stage Quantum Cryptography Protocol under Collective-Rotation Noise
title_sort three stage quantum cryptography protocol under collective rotation noise
topic quantum cryptography
three-stage quantum protocol
multi-photon
collective-rotation noise
url http://www.mdpi.com/1099-4300/17/5/2919
work_keys_str_mv AT linsenwu threestagequantumcryptographyprotocolundercollectiverotationnoise
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