panleonedash / rust-dashcore

Rust Bitcoin library

Rust Dash

Library with support for de/serialization, parsing and executing on data-structures and network messages related to Dash Core payment chain.

Heads up for contributors: upcoming edition change

Documentation

Supports (or should support)

• De/serialization of Dash protocol network messages
• De/serialization of blocks and transactions
• Script de/serialization
• Private keys and address creation, de/serialization and validation (including full BIP32 support)
• PSBT creation, manipulation, merging and finalization
• Pay-to-contract support as in Appendix A of the Blockstream sidechains whitepaper

For JSONRPC interaction with Dash Core, it is recommended to use rust-dashcore-rpc.

Known limitations

Consensus

This library must not be used for consensus code (i.e. fully validating blockchain data). It technically supports doing this, but doing so is very ill-advised because there are many deviations, known and unknown, between this library and the Dash Core reference implementation. In a consensus based cryptocurrency such as Dash it is critical that all parties are using the same rules to validate data, and this library does not and might never implement the same rules as Core.

Given the complexity of both C++ and Rust, it is unlikely that this will ever be fixed, and there are no plans to do so. Of course, patches to fix specific consensus incompatibilities are welcome.

Support for 16-bit pointer sizes

16-bit pointer sizes are not supported and we can't promise they will be. It will be dependent on rust-bitcoin implementing them first.

Documentation

Documentation can be found on dashcore.readme.io/docs.

Contributing

Contributions are generally welcome. If you intend to make larger changes please discuss them in an issue before PRing them to avoid duplicate work and architectural mismatches.

Minimum Supported Rust Version (MSRV)

This library should always compile with any combination of features on Rust 1.60.

Installing Rust

Rust can be installed using your package manager of choice or rustup.rs. The former way is considered more secure since it typically doesn't involve trust in the CA system. But you should be aware that the version of Rust shipped by your distribution might be out of date. Generally this isn't a problem for rust-bitcoin since we support much older versions than the current stable one (see MSRV section).

Building

The library can be built and tested using cargo:

git clone [email protected]:dashpay/rust-dashcore.git
cd rust-bitcoin
cargo build

You can run tests with:

cargo test

Please refer to the cargo documentation for more detailed instructions.

Pull Requests

Every PR needs at least two reviews to get merged. During the review phase maintainers and contributors are likely to leave comments and request changes. Please try to address them, otherwise your PR might get closed without merging after a longer time of inactivity. If your PR isn't ready for review yet please mark it by prefixing the title with WIP: .

CI Pipeline

The CI pipeline requires approval before being run on each MR.

In order to speed up the review process the CI pipeline can be run locally using act. The fuzz and Cross jobs will be skipped when using act due to caching being unsupported at this time. We do not actively support act but will merge PRs fixing act issues.

Release Notes

See CHANGELOG.md.

Licensing

The code in this project is licensed under the Creative Commons CC0 1.0 Universal license.