RustCrypto: belt-mac

Pure Rust implementation of belt-mac.

Example

use belt_mac::{digest::KeyInit, BeltMac, Mac};
use hex_literal::hex;

let key = [0x42; 32];
let msg = b"input message";
let expected_tag = hex!("9f5c9623b4eff8802195e81bcd841959");

// To get the authentication code:
let mut mac: BeltMac = BeltMac::new_from_slice(&key).unwrap();
mac.update(msg);
let tag = mac.finalize();
let tag_bytes = tag.into_bytes();
assert_eq!(&tag_bytes[..], &expected_tag[..]);

// To verify the message:
let mut mac: BeltMac = BeltMac::new_from_slice(&key).unwrap();
mac.update(b"input message");
mac.verify(&tag_bytes).unwrap();

License

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.