iTextSharp.text.pdf.crypto.AESCipher.DoFinal C# (CSharp) Метод

        public byte[] DoFinal()
        {
            int neededLen = bp.GetOutputSize(0);
            byte[] outp = new byte[neededLen];
            int n = 0;
            try {
                n = bp.DoFinal(outp, 0);
            }
            catch {
                return outp;
            }
            if (n != outp.Length) {
                byte[] outp2 = new byte[n];
                System.Array.Copy(outp, 0, outp2, 0, n);
                return outp2;
            }
            else
                return outp;
        }

 public byte[] Finish()
 {
     if (aes)
     {
         return(cipher.DoFinal());
     }
     else
     {
         return(null);
     }
 }