An n/2 byzantine node tolerate blockchain sharding approach
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Traditional Blockchain Sharding approaches can only tolerate up to n/3 of nodes being adversary because they rely on the hyper-geometric distribution to make a failure (an adversary does not have n/3 of nodes globally but can manipulate the consensus of a Shard) hard to happen. The system must maintain a large Shard size (the number of nodes inside a Shard) to sustain the low failure probability so that only a small number of Shards may exist. In this paper, we present a new approach of Blockchain Sharding that can withstand up to n/2 of nodes being bad. We categorise the nodes into different classes, and every Shard has a fixed number of nodes from different classes. We prove that this design is much more secure than the traditional models (only have one class) and the Shard size can be reduced significantly. In this way, many more Shards can exist, and the transaction throughput can be largely increased. The improved Blockchain Sharding approach is promising to serve as the foundation for decentralised autonomous organisations and decentralised database.
Original language | English |
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Title of host publication | 35th Annual ACM Symposium on Applied Computing, SAC 2020 |
Number of pages | 4 |
Publisher | Association for Computing Machinery, Inc |
Publication date | 30 Mar 2020 |
Pages | 349-352 |
ISBN (Electronic) | 9781450368667 |
DOIs | |
Publication status | Published - 30 Mar 2020 |
Externally published | Yes |
Event | 35th Annual ACM Symposium on Applied Computing, SAC 2020 - Brno, Czech Republic Duration: 30 Mar 2020 → 3 Apr 2020 |
Conference
Conference | 35th Annual ACM Symposium on Applied Computing, SAC 2020 |
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Land | Czech Republic |
By | Brno |
Periode | 30/03/2020 → 03/04/2020 |
Sponsor | ACM Special Interest Group on Applied Computing (SIGAPP) |
Series | Proceedings of the ACM Symposium on Applied Computing |
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Bibliographical note
Publisher Copyright:
© 2020 Owner/Author.
- Blockchain, Blockchain sharding, Decentralised ledger, PBFT
Research areas
ID: 300914381