/// <summary>
/// Hashes a given byte array with BLAKE2b (really fast).
/// </summary>
/// <returns>The hashed value as byte array</returns>
/// <param name="message">Message to hash.</param>
/// <param name="hashLength">Hash length (default 32).</param>
public static byte[] Hash(byte[] message, int hashLength = 32)
{
int messageLength = message.Length;
byte[] hash = new byte[hashLength];
NativeLibsodium.crypto_generichash(hash, hashLength, message, messageLength, null, 0);
return(hash);
}