rust-lioness

This crate provides a concrete parameterization of the Lioness wide block cipher using ChaCha20 and Blake2b.

Warning

This code has not been formally audited and should only be use with extreme care and advice from competent cryptographers. That said, Lionness' security properties mostly reduce to the underlying stream cipher and hash function.

Test vectors are verified in a fork of Yawning's golang Lioness implementation: https://github.com/david415/lioness

Details

Lioness is a wide block cipher built from a stream cipher and a hash function. It remains secure so long as either the stream cipher or the hash function remains secure. Lioness is described in Two Practical and Provably Secure Block Ciphers: BEAR and LION by Ross Anderson and Eli Biham. See https://www.cl.cam.ac.uk/~rja14/Papers/bear-lion.pdf

Documentation is available at https://docs.rs/rust-lioness/

Installation

This crate works with Cargo and is on crates.io https://crates.io/crates/rust-lioness. Add it to your Cargo.toml with:

rust-lioness = "^0.1.5"

Then import the crate as:

extern crate rust-lioness;

License

rust-lioness is free software made available via the MIT License. License details located in the LICENSE file.