A Two-Layer Blockchain Sharding Protocol Leveraging Safety and Liveness for Enhanced Performance

arXiv:2310.11373v3 Announce Type: replace
Abstract: Sharding is essential for improving blockchain scalability. Existing protocols overlook diverse adversarial attacks, limiting transaction throughput. This paper presents Reticulum, a groundbreaking sharding protocol addressing this issue, boosting blockchain scalability.
Reticulum employs a two-phase approach, adapting transaction throughput based on runtime adversarial attacks. It comprises "control" and "process" shards in two layers. Process shards contain at least one trustworthy node, while control shards have a majority of trusted nodes. In the first phase, transactions are …

adversarial adversarial attacks arxiv attacks blockchain cs.cr cs.dc issue performance protocol protocols runtime safety scalability sharding transaction