public static NodeDssMessage DecryptMessage(string cipherText, string hmac, byte[] Key, byte[] IV)
{
byte[] cipherBytes = System.Convert.FromBase64String(cipherText);
byte[] hmacBytes = System.Convert.FromBase64String(hmac);
var jsonPlainText = AES.DecryptStringFromBytes_Aes(cipherBytes, Key, IV);
if (HMAC.Verify(Key, jsonPlainText, hmacBytes))
{
NodeDssMessage nodeMessage = JsonUtility.FromJson <NodeDssMessage>(jsonPlainText);
return(nodeMessage);
}
else
{
throw new InvalidOperationException("Cannot verify the sender of the SDP message; invalid HMAC");
}
}