In memory signatory

Implements the Signatory trait from cdk-common to manage the key in-process, to be included inside the mint to be executed as a single process.

Even if it is embedded in the same process, the keys are not accessible from the outside of this module, all communication is done through the Signatory trait and the signatory manager.

[!Warning] This project is in early development, it does however work with real sats! Always use amounts you don't mind losing.

Cashu Development Kit

CDK is a collection of rust crates for Cashu wallets and mints written in Rust.

ALPHA This library is in early development, the api will change and should be used with caution.

Project structure

The project is split up into several crates in the crates/ directory:

• Libraries:
  • cashu: Core Cashu protocol implementation.
  • cdk: Rust implementation of Cashu protocol.
  • cdk-sqlite: SQLite Storage backend.
  • cdk-postgres: PostgreSQL Storage backend.
  • cdk-redb: Redb Storage backend.
  • cdk-axum: Axum webserver for mint.
  • cdk-cln: CLN Lightning backend for mint.
  • cdk-lnd: Lnd Lightning backend for mint.
  • cdk-lnbits: LNbits Lightning backend for mint. Note: Only LNBits v1 API is supported.
  • cdk-ldk-node: LDK Node Lightning backend for mint.
  • cdk-fake-wallet: Fake Lightning backend for mint. To be used only for testing, quotes are automatically filled.
  • cdk-common: Common utilities and shared code.
  • cdk-sql-common: Common SQL utilities for storage backends.
  • cdk-signatory: Signing utilities and cryptographic operations.
  • cdk-payment-processor: Payment processing functionality.
  • cdk-prometheus: Prometheus metrics integration.
  • cdk-ffi: Foreign Function Interface bindings for other languages.
  • cdk-integration-tests: Integration test suite.
  • cdk-mint-rpc: Mint management gRPC server and cli.
• Binaries:
  • cdk-cli: Cashu wallet CLI.
  • cdk-mintd: Cashu Mint Binary.
  • cdk-mint-cli: Cashu Mint management gRPC client cli.

Development

For a guide to settings up a development environment see DEVELOPMENT.md

Implemented NUTs:

Mandatory

Optional

License

Code is under the MIT License

Contribution

All contributions are welcome.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, shall be licensed as above, without any additional terms or conditions.

Please see the development guide.