# [−] [src] Crate pow_sha256

MCaptch's SHA256 based Proof of Work library

# Example:

      use pow_sha256::{ConfigBuilder, PoW};

      fn main() {
          let config = ConfigBuilder::default()
            .salt("myrandomsaltisnotlongenoug".into())
            .build()
            .unwrap();

          let phrase = "ironmansucks";

          const DIFFICULTY: u32 = 1000;

          let work = config.prove_work(&phrase, DIFFICULTY).unwrap();
          assert!(config.is_valid_proof(&work, &phrase));
          assert!(config.is_sufficient_difficulty(&work, DIFFICULTY));
      }

## Structs

Config | Configuration for generting proof of work Please choose a long, unique value for salt Resistance to dictionary/rainbow attacks depend on uniqueness of the salt
ConfigBuilder | Builder for `Config`.
PoW | Proof of Work over concrete type T. T can be any type that implements serde::Serialize.
PoWBuilder | Builder for `PoW`.