Paper 2021/1126
Turn-Based Communication Channels
Carlo Brunetta, Mario Larangeira, Bei Liang, Aikaterini Mitrokotsa, and Keisuke Tanaka
Abstract
We introduce the concept of turn-based communication channel between two mutually distrustful parties with communication consistency, i.e. both parties have the same message history, and happens in sets of exchanged messages across a limited number of turns. Our construction leverages on timed primitives. Namely, we introduce a novel Delta-delay hash function definition in order to establish turns in the channel. Concretely, we introduce the one-way turn-based communication scheme and the two-way turn-based communication protocol and provide a concrete instantiation that achieves communication consistency.
Note: Minor typo fixes
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Major revision. ProvSec 2021
- Keywords
- Time PuzzleDelayHash FunctionsConsistency
- Contact author(s)
- brunetta @ chalmers se
- History
- 2021-09-06: received
- Short URL
- https://ia.cr/2021/1126
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2021/1126,
author = {Carlo Brunetta and Mario Larangeira and Bei Liang and Aikaterini Mitrokotsa and Keisuke Tanaka},
title = {Turn-Based Communication Channels},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/1126},
year = {2021},
url = {https://eprint.iacr.org/2021/1126}
}
