# RustCrypto: Kupyna
[![crate][crate-image]][crate-link]
[![Docs][docs-image]][docs-link]
![Apache2/MIT licensed][license-image]
![Rust Version][rustc-image]
[![Project Chat][chat-image]][chat-link]
[![Build Status][build-image]][build-link]
Pure Rust implementation of the [Kupyna] cryptographic hash function defined under DSTU 7564:2014.
## Examples
```rust
use hex_literal::hex;
use kupyna::{Digest, Kupyna256};
let mut hasher = Kupyna256::default();
hasher.update(b"my message");
let hash = hasher.finalize();
assert_eq!(hash, hex!("538e2e238142df05e954702aa75d6942cebe30d44bd514df365d13bdcb6b1458"));
```
See the [`digest`] crate docs for additional examples.
## License
The crate is licensed under either of:
* [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
* [MIT license](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.
[//]: # (badges)
[crate-image]: https://img.shields.io/crates/v/kupyna.svg
[crate-link]: https://crates.io/crates/kupyna
[docs-image]: https://docs.rs/kupyna/badge.svg
[docs-link]: https://docs.rs/kupyna/
[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
[build-image]: https://github.com/RustCrypto/hashes/actions/workflows/kupyna.yml/badge.svg?branch=master
[build-link]: https://github.com/RustCrypto/hashes/actions/workflows/kupyna.yml?query=branch:master
[//]: # (general links)
[Kupyna]: https://eprint.iacr.org/2015/885.pdf
[`digest`]: https://docs.rs/digest