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Bitcoin–Monero Cross-chain Atomic Swap
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Thomas Eizinger 25b123d6ed
Load wallet in monero-wallet-rpc on demand if necessary 
Previously, we relied on the wallet in the `monero-wallet-rpc` daemon
to be loaded as we do on startup. As a consequence of this expectation,
restarting `monero-wallet-rpc` to fix bugs like #652 resulted in the
ASB no longer operating correctly.

To fix this, we now load the wallet on-demand in case the daemon responds
with the error code -13.

Ideally, we would implement this behaviour generically using the proxy
pattern on the `MoneroWalletRpc` trait. Unfortunately, when attempting
to do so we uncover a limitation in the design of `jsonrpc_client`.
This limitation is tracked in https://github.com/thomaseizinger/rust-jsonrpc-client/issues/47.
Once fixed, we can implement this logic in a more robust way that is not
tied to the `check_tx_key` RPC call but applies to any RPC call automatically.
2021-08-27 09:39:29 +10:00
.cargo .cargo/config.toml for specifying linker 2021-03-15 14:36:05 +11:00
.github Bump thomaseizinger/create-pull-request from 1.1.0 to 1.2.1 2021-07-28 11:07:31 +00:00
docs No default for rendezvous-point in CLI README 2021-07-09 11:22:38 +10:00
monero-harness Drop monero-wallet-rpc test container if errors 2021-06-23 15:07:36 +10:00
monero-rpc Load wallet in monero-wallet-rpc on demand if necessary 2021-08-27 09:39:29 +10:00
monero-wallet Introduce monero-wallet crate 2021-04-30 10:28:46 +10:00
swap Load wallet in monero-wallet-rpc on demand if necessary 2021-08-27 09:39:29 +10:00
.gitignore Push cargo lock to git as we are building a binary 2020-12-01 09:31:41 +11:00
bors.toml Move recovery commands in dedicated module 2021-05-07 16:21:02 +10:00
Cargo.lock Bump tracing-subscriber from 0.2.19 to 0.2.20 2021-08-21 13:05:30 +00:00
Cargo.toml Update secp256kfun and rand to latest version 2021-05-25 15:35:13 +10:00
CHANGELOG.md Load wallet in monero-wallet-rpc on demand if necessary 2021-08-27 09:39:29 +10:00
CONTRIBUTING.md Create CONTRIBUTING.md 2021-06-29 10:58:00 +10:00
dprint.json Replace cargo-fmt with dprint 2021-05-25 16:11:48 +10:00
LICENSE Change license to GPLv3 2020-10-12 17:13:25 +11:00
README.md Add note about security of software 2021-07-16 11:54:33 +10:00
rust-toolchain.toml Upgrade to Rust 1.53 2021-06-21 11:56:04 +10:00

README.md

XMR to BTC Atomic Swap

This repository hosts an MVP for atomically swapping BTC to XMR. It implements the protocol described in section 3 of this paper.

More information about the protocol in this presentation and this blog post.

Currently, swaps are only offered in one direction with the swap CLI on the buying side (send BTC, receive XMR). We are working on implementing a protocol where XMR moves first, but are currently blocked by advances on Monero itself. You can read this blogpost for more information.

Quick Start

  1. Download the latest swap binary release for your operating system.
  2. Find a seller to swap with:
./swap --testnet list-sellers
  1. Swap with a seller:
./swap --testnet buy-xmr --receive-address <YOUR MONERO ADDRESS> --change-address <YOUR BITCOIN CHANGE ADDRESS> --seller <SELLER MULTIADDRESS>

For more detailed documentation on the CLI, see this README.

Becoming a Market Maker

Swapping of course needs two parties - and the CLI is only one of them: The taker that occasionally starts a swap with a market maker.

If you are interested in becoming a market maker you will want to run the second binary provided in this repository: asb - the Automated Swap Backend. Detailed documentation for the asb can be found in this README.

Safety

This software is using cryptography that has not been formally audited. While we do our best to make it safe, it is up to the user to evaluate whether or not it is safe to use for their purposes. Please also see section 15 and 16 of the license.

Contact

Feel free to reach out to us in the COMIT-Monero Matrix channel.