XXTEA.DecryptToString() throws System.ArgumentNullException

[cnrting]

code: public static void Main (string[] args) { string encrypt_data = "AgCwAP////8AAAAAAIAAALAFAA68k8Tb7TCcSrvGAVaxkx9W"; string key = "VJl53SVcTSYvyFF0"; byte[] data = Convert.FromBase64String(encrypt_data); byte[] ndata = new byte[16]; Array.Copy(data,20,ndata,0,16); Console.WriteLine(BitConverter.ToString(ndata));
string decrypt_data = XXTEA.DecryptToString(ndata,key); Console.WriteLine(decrypt_data); Console.ReadLine(); }

The Arguments are as below: key "VJl53SVcTSYvyFF0" string

• data {byte[0x00000010]} byte[] [0] 0xbc byte [1] 0x93 byte [2] 0xc4 byte [3] 0xdb byte [4] 0xed byte [5] 0x30 byte [6] 0x9c byte [7] 0x4a byte [8] 0xbb byte [9] 0xc6 byte [10] 0x01 byte [11] 0x56 byte [12] 0xb1 byte [13] 0x93 byte [14] 0x1f byte [15] 0x56 byte

[andot]

Where is the encrypted data coming from?

This library only supports the data encrypted with the https://github.com/xxtea.