# noncrypto-digests
[](https://github.com/nyurik/noncrypto-digests)
[](https://crates.io/crates/noncrypto-digests)
[](https://docs.rs/noncrypto-digests)
[](https://github.com/nyurik/noncrypto-digests/blob/main/LICENSE-APACHE)
[](https://github.com/nyurik/noncrypto-digests/actions)
Implement [digest::Digest](https://docs.rs/digest/latest/digest/trait.Digest.html) trait for non-cryptographic hashing functions like fnv and xxhash. This allows users to use all cryptographic and non-cryptographic hashing functions polymorphically.
## Usage
```rust
use digest::Digest;
use hex::ToHex;
use noncrypto_digests::{Fnv, Xxh3_64, Xxh3_128, Xxh32, Xxh64};
/// This function takes any Digest type, and returns a hex-encoded string.
pub fn hash<T: Digest>(data: impl AsRef<[u8]>) -> String {
// Note that some hashers provide seed value set to 0 by default.
// Use `...::from_hasher(hasher)` function to instantiate them.
let mut hasher = T::new();
hasher.update(data);
hasher.finalize().to_vec().encode_hex_upper()
}
fn main() {
assert_eq!(hash::<Fnv>("password"), "4B1A493507B3A318");
assert_eq!(hash::<Xxh3_64>("password"), "336576D7E0E06F9A");
assert_eq!(hash::<Xxh3_128>("password"), "9CFA9055952177DA0B120BE86072A8F0");
assert_eq!(hash::<Xxh32>("password"), "106C6CED");
assert_eq!(hash::<Xxh64>("password"), "90007DAF3980EF1F");
}
```
## Development
* This project is easier to develop with [just](https://github.com/casey/just#readme), a modern alternative to `make`. Install it with `cargo install just`.
* To get a list of available commands, run `just`.
* To run tests, use `just test`.
* On `git push`, it will run a few validations, including `cargo fmt`, `cargo clippy`, and `cargo test`. Use `git push --no-verify` to skip these checks.
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or <http://www.apache.org/licenses/LICENSE-2.0>)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or <http://opensource.org/licenses/MIT>)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the
Apache-2.0 license, shall be dual licensed as above, without any
additional terms or conditions.