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| Paper Abstract and Keywords | ||
| Presentation | 2023-07-12 14:40 Improvement of key generation efficiency of free-space optical physical layer cryptography using polar code Ryuto Terada (Nitech), Hiroyuki Endo (NICT), Kensuke Yamaura, Eiji Okamoto (Nitech), Mitsuo Kitamura (NICT), Ryosuke Shimizu (UEC), Morio Toyoshima, Mikio Hujiwara, Masahide Sasaki (NICT)  SAT2023-12 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Quantum key distribution is known as a secure key sharing technology against all physically possible attacks. However, there are still limitations in terms of key sharing distance and transmission speed. Therefore, attention has been focused on free-space communication physical-layer encryption, which allows information-theoretically secure key sharing over long distances, such as between ground and satellites, by setting reasonable assumptions about the eavesdropper's attack capabilities. Until now, experimental demonstrations of physical-layer encryption have been conducted in the 7.8 km free-space optical communication testbed between University of Electro-Communications and National Institute of Information and Communications Technology. In this paper, we propose a new method that applies simultaneous bit erasure based on the received intensity of laser light and polar codes to improve the performance of key transmission. We demonstrate that the key sharing efficiency improves by an average of approximately 6% compared to the existing experiments using LDPC codes. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | physical layer cryptography / free-space optical communication / quantum cryptography / information reconciliation / polar codes / LDPC codes / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 105, SAT2023-12, pp. 13-18, July 2023. | |
| Paper # | SAT2023-12 | |
| Date of Issue | 2023-07-05 (SAT) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SAT2023-12 |
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| Conference Information | |
| Committee | AP SANE SAT |
| Conference Date | 2023-07-12 - 2023-07-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Citizen Activity Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2023-07-AP-SANE-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of key generation efficiency of free-space optical physical layer cryptography using polar code |
| Sub Title (in English) | |
| Keyword(1) | physical layer cryptography |
| Keyword(2) | free-space optical communication |
| Keyword(3) | quantum cryptography |
| Keyword(4) | information reconciliation |
| Keyword(5) | polar codes |
| Keyword(6) | LDPC codes |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ryuto Terada |
| 1st Author's Affiliation | Nagoya Institute of Technology (Nitech) |
| 2nd Author's Name | Hiroyuki Endo |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name | Kensuke Yamaura |
| 3rd Author's Affiliation | Nagoya Institute of Technology (Nitech) |
| 4th Author's Name | Eiji Okamoto |
| 4th Author's Affiliation | Nagoya Institute of Technology (Nitech) |
| 5th Author's Name | Mitsuo Kitamura |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | Ryosuke Shimizu |
| 6th Author's Affiliation | The University of Electro-Communications (UEC) |
| 7th Author's Name | Morio Toyoshima |
| 7th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 8th Author's Name | Mikio Hujiwara |
| 8th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 9th Author's Name | Masahide Sasaki |
| 9th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| Speaker | Author-1 |
| Date Time | 2023-07-12 14:40:00 |
| Presentation Time | 20 minutes |
| Registration for | SAT |
| Paper # | SAT2023-12 |
| Volume (vol) | vol.123 |
| Number (no) | no.105 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2023-07-05 (SAT) |
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