iTextSharp.text.pdf.crypto.ARCFOUREncryption.PrepareARCFOURKey C# (CSharp) Метод

        public void PrepareARCFOURKey(byte[] key)
        {
            PrepareARCFOURKey(key, 0, key.Length);
        }

 static IVGenerator(){
     rc4 = new ARCFOUREncryption();
     byte[] longBytes = new byte[8];
     long val = DateTime.Now.Ticks;
     for (int i = 0; i != 8; i++) {
         longBytes[i] = (byte)val;
         val = (long)((ulong)val >> 8);
     }
     rc4.PrepareARCFOURKey(longBytes);
 }