//! Proof of Work schemes for onion services
//!
//! Tor supports optional proof-of-work client puzzles, for mitigating denial of
//! service attacks on onion services. This crate implements the specific puzzle
//! algorithms we use, and components for client and service integration.
//!
//! There is infrastructure to support new algorithms over time, but right now
//! only a single algorithm is defined, named [`v1`] and implemented via the
//! `equix` crate.
//!
//! Specification at: <https://spec.torproject.org/hspow-spec/index.html>

mod err;

#[cfg_attr(not(feature = "hs-pow-full"), path = "pow/v1_stub.rs")]
pub mod v1;

pub use err::{Error, RuntimeError, SolutionError};