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Bitcoin–Monero Cross-chain Atomic Swap
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bors[bot] 0e242110bd
Merge #1218 
1218: ci: use cargo cross for armv7 build r=delta1 a=delta1

armv7 builds have started failing, presumably due to some change in the CI runners. 

this change updates the CI to use `cargo cross` for more reliable cross compilation 

example failure: https://github.com/comit-network/xmr-btc-swap/actions/runs/3496339850/jobs/5855083680 

```
error: failed to run custom build command for `ring v0.16.20`

Caused by:
  process didn't exit successfully: `/home/runner/work/xmr-btc-swap/xmr-btc-swap/target/debug/build/ring-3b88841cfec2d8d7/build-script-build` (exit status: 101)
  --- stdout
  OPT_LEVEL = Some("0")
  TARGET = Some("armv7-unknown-linux-gnueabihf")
  HOST = Some("x86_64-unknown-linux-gnu")
  CC_armv7-unknown-linux-gnueabihf = None
  CC_armv7_unknown_linux_gnueabihf = None
  TARGET_CC = None
  CC = None
  CROSS_COMPILE = None
  CFLAGS_armv7-unknown-linux-gnueabihf = None
  CFLAGS_armv7_unknown_linux_gnueabihf = None
  TARGET_CFLAGS = None
  CFLAGS = None
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some("true")
  CARGO_CFG_TARGET_FEATURE = None

  --- stderr
  running "arm-linux-gnueabihf-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-march=armv7-a" "-I" "include" "-Wall" "-Wextra" "-pedantic" "-pedantic-errors" "-Wall" "-Wextra" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wenum-compare" "-Wfloat-equal" "-Wformat=2" "-Winline" "-Winvalid-pch" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wundef" "-Wuninitialized" "-Wwrite-strings" "-fno-strict-aliasing" "-fvisibility=hidden" "-fstack-protector" "-g3" "-DNDEBUG" "-c" "-o/home/runner/work/xmr-btc-swap/xmr-btc-swap/target/armv7-unknown-linux-gnueabihf/debug/build/ring-34b63fa28ccdbd48/out/aesv8-armx-linux32.o" "/home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/pregenerated/aesv8-armx-linux32.S"
  cc1: error: ‘-mfloat-abi=hard’: selected architecture lacks an FPU
  thread 'main' panicked at 'execution failed', /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/build.rs:656:9
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
Error: Process completed with exit code 101.
```

Co-authored-by: Byron Hambly <bhambly@blockstream.com>
2022-11-23 11:20:03 +00:00
.cargo .cargo/config.toml for specifying linker 2021-03-15 14:36:05 +11:00
.github ci: use cargo cross for armv7 build 2022-11-23 12:28:03 +02:00
docs Change example rendezvous node to /dns4/discover.unstoppableswap.net/tcp/8888/p2p/12D3Ko... 2022-04-22 14:51:37 +02:00
monero-harness build(deps): upgrade bdk, ecdsa_fun, sigma_fun, sha2, bitcoin-harness, serde 2022-09-12 12:03:24 +02:00
monero-rpc Update dependencies and rust-toolchain to 1.59 2022-03-12 13:05:36 +02:00
monero-wallet Update dependencies and rust-toolchain to 1.59 2022-03-12 13:05:36 +02:00
swap Add monero-wallet-rpc DOWNLOAD_URL for M1, M2 Mac 2022-11-12 15:31:53 +01:00
utils/gpg_keys docs: add gpg key readme and delta1.asc 2022-08-11 13:05:21 +02:00
.gitignore fix: change logs to UTC due to bug in time crate 2022-07-26 14:16:41 +02:00
bors.toml Remove flaky test 2021-10-07 10:00:17 +11:00
Cargo.lock build(deps): bump reqwest from 0.11.12 to 0.11.13 2022-11-17 11:07:29 +00:00
Cargo.toml Update secp256kfun and rand to latest version 2021-05-25 15:35:13 +10:00
CHANGELOG.md Prepare release 0.11.0 2022-08-11 12:42:06 +00:00
CONTRIBUTING.md Create CONTRIBUTING.md 2021-06-29 10:58:00 +10:00
dprint.json Upgrade libp2p and stabilized the version 2022-04-22 15:53:55 +02:00
LICENSE Change license to GPLv3 2020-10-12 17:13:25 +11:00
README.md chore: bump rust toolchain to 1.62 2022-10-19 15:02:38 +02:00
rust-toolchain.toml chore: bump rust toolchain to 1.62 2022-10-19 15:02:38 +02:00

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.

Keep in mind that swaps are complex protocols, it is recommended to not do anything fancy when moving coins in and out. It is not recommended to bump fees when swapping because it can have unpredictable side effects.

Contributing

We are encourage community contributions whether it be a bug fix or an improvement to the documentation. Please have a look at the contribution guidelines.

Rust Version Support

Please note that only the latest stable Rust toolchain is supported. All stable toolchains since 1.62 should work.

Contact

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