Tink-Rust: Message Authentication Code

This crate provides message authentication code (MAC) functionality, as described in the upstream Tink documentation.

Usage

fn main() -> Result<(), Box<dyn Error>> {
    tink_mac::init();
    let kh = tink_core::keyset::Handle::new(&tink_mac::hmac_sha256_tag256_key_template())?;
    let m = tink_mac::new(&kh)?;

    let pt = b"this data needs to be MACed";
    let mac = m.compute_mac(pt)?;
    println!("'{}' => {}", String::from_utf8_lossy(pt), hex::encode(&mac));

    assert!(m.verify_mac(&mac, b"this data needs to be MACed").is_ok());
    println!("MAC verification succeeded.");
    Ok(())
}

License

Apache License, Version 2.0

Disclaimer

This is not an officially supported Google product.