Abstract / Description of output
Proof-of-Stake (PoS) distributed ledgers are the most common alternative to Bitcoin's Proof-of-Work (PoW) paradigm, replacing the hardware dependency with stake, i.e., assets that a party controls. Similar to PoW's mining pools, PoS's stake pools, i.e., collaborative entities comprising of multiple stakeholders, allow a party to earn rewards more regularly, compared to participating on an individual basis. However, stake pools tend to increase centralization, since they are typically managed by a single party that acts on behalf of the pool's members. In this work we propose Conclave, a formal design of a Collective Stake Pool, i.e., a decentralized pool with no single point of authority. We formalize Conclave as an ideal functionality and implement it as a distributed protocol, based on standard cryptographic primitives. Among Conclave's building blocks is a weighted threshold signature scheme (WTSS); to that end, we define a WTSS ideal functionality and propose two constructions based on threshold ECDSA, which enable (1) fast trustless setup and (2) identifiable aborts.
Original language | English |
---|---|
Title of host publication | Computer Security - ESORICS 2021: 26th European Symposium on Research in Computer Security, Darmstadt, Germany, October 4–8, 2021, Proceedings, Part I |
Editors | Elisa Bertino, Haya Shulman, Michael Waidner |
Place of Publication | Cham |
Publisher | Springer |
Pages | 370-389 |
Number of pages | 20 |
ISBN (Print) | 978-3-030-88418-5 |
DOIs | |
Publication status | Published - 30 Sept 2021 |
Event | 26th European Symposium on Research in Computer Security, 2021 - Online Duration: 4 Oct 2021 → 8 Oct 2021 Conference number: 26 https://esorics2021.athene-center.de/index.php |
Publication series
Name | Lecture Notes in Computer Science |
---|---|
Publisher | Springer Cham |
Volume | 12972 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Symposium
Symposium | 26th European Symposium on Research in Computer Security, 2021 |
---|---|
Abbreviated title | ESORICS 2021 |
Period | 4/10/21 → 8/10/21 |
Internet address |