[Resource Topic] 2024/210: Rollerblade: Replicated Distributed Protocol Emulation on Top of Ledgers

Welcome to the resource topic for 2024/210

Title:
Rollerblade: Replicated Distributed Protocol Emulation on Top of Ledgers

Authors: Dionysis Zindros, Apostolos Tzinas, David Tse

Abstract:

We observe that most fixed-party distributed protocols can be rewritten by replacing a party with a ledger (such as a blockchain system) and the authenticated channel communication between parties with cross-chain relayers. This transform is useful because blockchain systems are always online and have battle-tested security assumptions. We provide a definitional framework that captures this analogy. We model the transform formally, and posit and prove a generic metatheorem that allows translating all theorems from the party setting into theorems in the emulated setting, while preserving analogies between party honesty and ledger security. In the heart of our proof lies a reduction-based simulation argument. As an example, our metatheorem can be used to construct a consensus protocol on top of other blockchains, creating a reliable rollup that assumes only the majority of the underlying layer-1s are secure.

ePrint: https://eprint.iacr.org/2024/210

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .