nmconew General Packet Format and Encryption

// Primary Header
[00 44] [00 0B] 
// Secondary Header
[18] [00 00 40] [02] [00 00 34] [C6 7D 2A 54] [C2 B0 B4 35]
// Packet Body
[84 68 2D 2C 93 11 8B 7D F2 B7 20 EF 20 11 B4 8E 73 69 3B 18 F5 68 07 26 33 6F 23 17 3B 82 B1 6C A8 0D 05 A0 E6 F1 FC 17 6D C5 DD C6 95 C5 E3 B0 51 E1]

unsigned int xor_table[] = { 0x040FC1578, 0x0113B6C1F, 0x08389CA19, 0x0E2196CD8,
                             0x074901489, 0x04AAB1566, 0x07B8C12A0, 0x00018FFCD,
                             0x0CCAB704B, 0x07B5A8C0F, 0x0AA13B891, 0x0DE419807,
                             0x012FFBCAE, 0x05F5FBA34, 0x010F5AC99, 0x0B1C1DD01  };

void encrypt(unsigned long* buffer, unsigned int len, int seed)
{
  int temp, temp2 = 0;
  
  for (int i = 0; i < len / 4; i++
  {
    temp = temp2 ^ xor_table[i & 15] ^ seed;
    temp2 = (int)buffer[i];
    buffer[i] = temp ^ temp2;
  }
}

void decrypt(unsigned long* buffer, unsigned int len, int seed)
{
  int temp = 0;

  for (int i = 0; i < len / 4; i++)
  {
    buffer[i] ^= (temp ^ xor_table[i & 15] ^ seed);
    temp = buffer[i];
  }
}