protected virtual byte[] GetMacArray(byte senderNodeId, byte receiverNodeId, byte[] IV, byte cmdId, byte[] payload)
{
byte[] header = new byte[20];
Array.Copy(IV, 0, header, 0, IV.Length);
header[16] = cmdId;
header[17] = senderNodeId;
header[18] = receiverNodeId;
header[19] = (byte)payload.Length;
return(SecurityS0Utils.MakeAuthTag(AesEngine, _authKey, header, payload));
}
public static byte[] EncryptCommand(byte property, byte[] command, byte senderNodeId, byte receiverNodeId, byte[] internalNonce, byte[] externalNonce, byte[] networkKey, bool isWithNonceGet)
{
byte[] _authKey = new byte[16];
byte[] _encKey = new byte[16];
COMMAND_CLASS_SECURITY.SECURITY_MESSAGE_ENCAPSULATION.Tproperties1 prop = property;
COMMAND_CLASS_SECURITY.SECURITY_MESSAGE_ENCAPSULATION ret = new COMMAND_CLASS_SECURITY.SECURITY_MESSAGE_ENCAPSULATION();
ret.initializationVectorByte = internalNonce;
byte[] payload = new byte[command.Length + 1];
payload[0] = prop;
Array.Copy(command, 0, payload, 1, command.Length);
byte[] IV = new byte[16];
Array.Copy(internalNonce, 0, IV, 0, 8);
Array.Copy(externalNonce, 0, IV, 8, 8);
ZWaveAES _aesEngine = new ZWaveAES();
SecurityS0Utils.LoadKeys(_aesEngine, networkKey, out _authKey, out _encKey);
SecurityS0Utils.Encrypt(_aesEngine, _encKey, IV, ref payload);
ret.properties1 = payload[0];
if (payload.Length > 0)
{
ret.commandByte = new List <byte>();
for (int i = 1; i < payload.Length; i++)
{
ret.commandByte.Add(payload[i]);
}
}
ret.receiversNonceIdentifier = externalNonce[0];
byte[] header = new byte[20];
Array.Copy(IV, 0, header, 0, IV.Length);
header[16] = COMMAND_CLASS_SECURITY.SECURITY_MESSAGE_ENCAPSULATION.ID;
if (isWithNonceGet)
{
header[16] = COMMAND_CLASS_SECURITY.SECURITY_MESSAGE_ENCAPSULATION_NONCE_GET.ID;
}
else
{
header[16] = COMMAND_CLASS_SECURITY.SECURITY_MESSAGE_ENCAPSULATION.ID;
}
header[17] = senderNodeId;
header[18] = receiverNodeId;
header[19] = (byte)payload.Length;
ret.messageAuthenticationCodeByte = SecurityS0Utils.MakeAuthTag(_aesEngine, _authKey, header, payload);
return(ret);
}