Paper 2020/1126
Bitcoin-Monero Cross-chain Atomic Swap
Joël Gugger
Abstract
In blockchains where hashed timelock contracts are possible atomic swaps are already deployed, but when one of the blockchains doesn't have this capability it becomes a challenge. This protocol describes how to achieve atomic swaps between Bitcoin and Monero with two transactions per chain without trusting any central authority, servers, nor the other swap participant. We propose a swap between two participants, one holding bitcoin and the other monero, in which when both follow the protocol their funds are not at risk at any moment. The protocol does not require timelocks on the Monero side nor script capabilities but does require two proofs of knowledge of equal discrete logarithm across the edward25519 and the secp256k1 groups and ECDSA one-time VES.
Metadata
- Available format(s)
-
PDF
- Category
- Applications
- Publication info
- Preprint. MINOR revision.
- Keywords
- BlockchainAtomic SwapCross-Chain TransactionsBitcoinMonero
- Contact author(s)
- h4sh3d @ protonmail com
- History
- 2020-11-18: revised
- 2020-09-21: received
- See all versions
- Short URL
- https://ia.cr/2020/1126
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2020/1126,
author = {Joël Gugger},
title = {Bitcoin-Monero Cross-chain Atomic Swap},
howpublished = {Cryptology {ePrint} Archive, Paper 2020/1126},
year = {2020},
url = {https://eprint.iacr.org/2020/1126}
}
