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| Paper Abstract and Keywords | ||
| Presentation | 2022-06-23 13:30 Distributed Clock Synchronization Protocol for Proof of Stake Blockchain Yuya Miki, Kazuyuki Shudo (Tokyo Tech)  IA2022-2 ICSS2022-2 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In a Proof of Stake (PoS) blockchain, all nodes need to be able to recognize approximately synchronized clocks. A PoS blockchain relies on external clocks, and each node synchronizes its local clock according to an external clock using Network Time Protocol (NTP) or a similar protocol. However, this external dependence is undesirable because it reduces the autonomy, sustainability and trustless nature of the blockchain. This paper presents a clock synchronization protocol for slot-based PoS blockchains. The proposed protocol estimates the block propagation time to ensure that the synchronization is closer to that of a real-world clock. In addition, the proposed method considers the clock drift and clock adjustment frequency to achieve more accurate synchronization. Simulation experiments show that the proposed method can synchronize with a time that is closer to that of a real-world clock and with higher accuracy than existing methods. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Blockchain / Clock synchronization / Block propagation time / Ethereum / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 85, IA2022-2, pp. 8-14, June 2022. | |
| Paper # | IA2022-2 | |
| Date of Issue | 2022-06-16 (IA, ICSS) | |
| 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 | IA2022-2 ICSS2022-2 |
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| Conference Information | |
| Committee | IA ICSS |
| Conference Date | 2022-06-23 - 2022-06-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Nagasaki |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Internet Security, etc. |
| Paper Information | |
| Registration To | IA |
| Conference Code | 2022-06-IA-ICSS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Distributed Clock Synchronization Protocol for Proof of Stake Blockchain |
| Sub Title (in English) | |
| Keyword(1) | Blockchain |
| Keyword(2) | Clock synchronization |
| Keyword(3) | Block propagation time |
| Keyword(4) | Ethereum |
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| 1st Author's Name | Yuya Miki |
| 1st Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
| 2nd Author's Name | Kazuyuki Shudo |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
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| Speaker | Author-1 |
| Date Time | 2022-06-23 13:30:00 |
| Presentation Time | 25 minutes |
| Registration for | IA |
| Paper # | IA2022-2, ICSS2022-2 |
| Volume (vol) | vol.122 |
| Number (no) | no.85(IA), no.86(ICSS) |
| Page | pp.8-14 |
| #Pages | 7 |
| Date of Issue | 2022-06-16 (IA, ICSS) |
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