airlab-lib 0.1.3

airlab backend
Documentation 
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use crate::b64::b64u_encode;
use crate::pwd::{ContentToHash, Error, Result};
use hmac::{Hmac, Mac};
use sha2::Sha512;

pub fn hmac_sha512_hash(key: &[u8], to_hash: &ContentToHash) -> Result<String> {
    let ContentToHash { content, salt } = to_hash;

    let mut hmac_sha512 = Hmac::<Sha512>::new_from_slice(key).map_err(|_| Error::KeyFail)?;

    hmac_sha512.update(content.as_bytes());
    hmac_sha512.update(salt.as_bytes());

    let hmac_result = hmac_sha512.finalize();

    let result = b64u_encode(hmac_result.into_bytes());

    Ok(result)
}