// Asuring just inner buffer usage
public byte[] encrypt(byte[] plainData, int length, UInt16 pss, UInt16 cseq, UInt16 sseq)
{
this.lastOperationResultSize = EnigmaLib.worldEncrypt(plainData, innerBuffer, length, pss, cseq, sseq);
byte[] data = new byte[this.lastOperationResultSize];
ArrayUtils.copy(innerBuffer, 0, data, 0, this.lastOperationResultSize);
return(data);
}
// Return all the values in an ArrayList, not just the decrypted packet
public ArrayList decrypt(byte[] encryptedData, int length)
{
ArrayList response = new ArrayList();
UInt16 pss = 0;
UInt16 cseq = 0;
UInt16 sseq = 0;
int decryptedSize = EnigmaLib.worldDecrypt(encryptedData, innerBuffer, length, ref pss, ref cseq, ref sseq);
/*
* If decrypted size is -1337 then it was a CRC in packet <> CRC of packet Exception
* */
if (decryptedSize == -1337)
{
Output.WriteLine("Oh oh, CRC didnt matched in this packet");
}
// This hexsize throws exceptions ...so we will use the decryptedSize - 10 (same value)
byte[] hexSize = new byte[2];
hexSize [0] = innerBuffer[4];
hexSize [1] = innerBuffer[5];
UInt16 size = NumericalUtils.ByteArrayToUint16(hexSize, 1);
size -= 4; // remove the 4 seq data bytes from size
byte[] data = new byte[size];
ArrayUtils.copy(innerBuffer, 14, data, 0, decryptedSize - 10); // Should do a fast copy method for this, if not done already
response.Add(data);
response.Add(pss);
response.Add(cseq);
response.Add(sseq);
return(response);
}
