Rust-native building blocks for the Cardano blockchain ecosystem.
Pallas is an expanding collection of modules that re-implements common Cardano logic in native Rust. This crate doesn't provide any particular application, it is meant to be used as a base layer to facilitate the development of higher-level use-cases, such as explorers, wallets, etc (who knows, maybe even a full node in the far away future).
The repository is organized as a Cargo workspace. Each Pallas "building block" lives in its own crate. The root pallas crate serves as an all-in-one dependency that re-exports all of the other modules in an hierarchically organized fashion, using Cargo features to tailor the setup for each use-case.
As already explained, Pallas aims at being an expanding set of components. The following tables describe the currently available crates, as well as the planned ones.
| Crates | Description |
|---|---|
| pallas-machines | A framework for implementing state machines for Ouroboros network mini-protocols |
| pallas-multiplexer | Multithreaded Ouroboros multiplexer implementation using mpsc channels |
| pallas-handshake | Implementation of the Ouroboros network handshake mini-protocol |
| pallas-blockfetch | Implementation of the Ouroboros network blockfetch mini-protocol |
| pallas-chainsync | Implementation of the Ouroboros network chainsync mini-protocol |
| pallas-localstate | Implementation of the Ouroboros network local state query mini-protocol |
| pallas-txsubmission | Implementation of the Ouroboros network txsubmission mini-protocol |
| Crates | Description |
|---|---|
| pallas-leadership | Implementation of the slot leadership selection algorithm |
| pallas-selection | Implementation of the consensus chain-selection algorithm |
| Crates | Description |
|---|---|
| pallas-alonzo | Ledger primitives and cbor codec for the Alonzo era |
| pallas-ticking | Time passage implementation for consensus algorithm |
| pallas-applying | Logic for validating and applying new blocks and txs to the chain state |
| pallas-forecasting | Ledger forecasting algorithm to be used by the consensus layer |
Pallas: (Greek mythology) goddess of wisdom and useful arts and prudent warfare;