Function orion::hazardous::kdf::hkdf::derive_key

#[must_use]
pub fn derive_key(
    salt: &[u8], 
    ikm: &[u8], 
    info: Option<&[u8]>, 
    dst_out: &mut [u8]
) -> Result<(), UnknownCryptoError>

Combine extract and expand to return a derived key.