RustCrypto: Ascon-Hash256 and Ascon-XOF128

Pure Rust implementation of the lightweight cryptographic hash function Ascon-Hash256 and the extendable output functions (XOF) Ascon-XOF128.

Security Notes

No security audits of this crate have ever been performed.

USE AT YOUR OWN RISK!

Examples

Fixed output size hashing:

use ascon_hash256::{AsconHash256, Digest};
use hex_literal::hex;

let mut hasher = AsconHash256::new();
hasher.update(b"some bytes");
let hash = hasher.finalize();

assert_eq!(hash, hex!("e909c2f6da9cb3028423265c8f23fc2d26bfc0f3db704683ef16b787a945ed68"));

// Hex-encode hash using https://docs.rs/base16ct
let hex_hash = base16ct::lower::encode_string(&hash);
assert_eq!(hex_hash, "e909c2f6da9cb3028423265c8f23fc2d26bfc0f3db704683ef16b787a945ed68");

XOF hashing:

use ascon_hash256::{AsconXof128, ExtendableOutput, Update, XofReader};
use hex_literal::hex;

let mut xof = AsconXof128::default();
xof.update(b"some bytes");
let mut reader = xof.finalize_xof();
let mut dst = [0u8; 5];
reader.read(&mut dst);
assert_eq!(dst, hex!("8c7dd114a0"));

Also, see the examples section in the RustCrypto/hashes readme.

License

The crate is licensed under either of:

• Apache License, Version 2.0
• MIT license

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.