Function orion::default::hmac_verify

pub fn hmac_verify(
    expected_hmac: &[u8], 
    secret_key: &[u8], 
    data: &[u8]
) -> Result<bool, ValidationCryptoError>

Verify a HMAC-SHA512 MAC in constant time, with Double-HMAC Verification.

About:

This uses default::hmac() to generate the MAC.

Example:

use orion::default;
use orion::utilities::util;

let mut key = [0u8; 64];
util::gen_rand_key(&mut key).unwrap();
let msg = "Some message.".as_bytes();

let expected_hmac = default::hmac(&key, msg).unwrap();
assert_eq!(default::hmac_verify(&expected_hmac, &key, &msg).unwrap(), true);