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+# RustCrypto: Sponge Functions
+
+[![Project Chat][chat-image]][chat-link] ![Apache2/MIT licensed][license-image] [![Dependency Status][deps-image]][deps-link]
+
+Collection of [sponge functions] written in pure Rust.
+
+## Supported Algorithms
+
+| Crate      | Algorithm  | Crates.io | Documentation |
+|------------|------------|-----------|---------------|
+| [`keccak`] | [Keccak]   | [![crates.io](https://img.shields.io/crates/v/keccak.svg)](https://crates.io/crates/keccak) | [![Documentation](https://docs.rs/keccak/badge.svg)](https://docs.rs/keccak) |
+
+## License
+
+All crates 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)
+
+[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
+[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
+[deps-image]: https://deps.rs/repo/github/RustCrypto/sponges/status.svg
+[deps-link]: https://deps.rs/repo/github/RustCrypto/sponges
+[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
+
+[//]: # (crates)
+
+[`keccak`]: ./keccak
+
+[//]: # (algorithms)
+
+[sponge functions]: https://en.wikipedia.org/wiki/Sponge_function
+[Keccak]: https://en.wikipedia.org/wiki/BLAKE_(hash_function)#BLAKE2