/// <summary>解密数据</summary>
/// <param name="nwkSkey"></param>
/// <param name="appSkey"></param>
/// <returns></returns>
public Byte[] Decrypt(Byte[] nwkSkey, Byte[] appSkey)
{
var crypto = new LoRaMacCrypto();
if (FPort == 0)
{
if (nwkSkey == null)
{
throw new ArgumentNullException(nameof(nwkSkey));
}
return(crypto.PayloadDecrypt(Payload.ToArray(), nwkSkey, DevAddr, true, FCnt));
}
else
{
if (appSkey == null)
{
throw new ArgumentNullException(nameof(appSkey));
}
return(crypto.PayloadDecrypt(Payload.ToArray(), appSkey, DevAddr, true, FCnt));
}
}
private void Test3()
{
var crypto = new LoRaMacCrypto();
//var buf = "C86B3BF3".ToHex();
var buf = "58E1369B".ToHex();
var key = "A499E0B73311D0782EC80C98FEC83B8E".ToHex();
var rs = crypto.PayloadDecrypt(buf, key, 0x77F7EEF0, true, 0x0142);
var str = rs.ToHex();
XTrace.WriteLine(str);
//Debug.Assert(str == "B93747B2");
Debug.Assert(str == "092200DB");
}