C#文件加密方法汇总

                            pbDir.Visible = false;
                            lblProgressDir.Visible = false;
                            pbFile.Visible = false;
                            lblProgressFile.Visible = false;
                            lblShowPath.Text = "文件：" + openFileDialog1.FileName;
                            lblShowPath.Visible = true;
                            DisableBtns();
                        };
                        InvokeUtil.Invoke(this, invokeDelegate);
                        DateTime t1 = DateTime.Now;
                        FileEncrypt.EncryptFile(openFileDialog1.FileName, txtPwd.Text, RefreshFileProgress);
                        DateTime t2 = DateTime.Now;
                        string t = t2.Subtract(t1).TotalSeconds.ToString("0.00");
                        if (MessageBox.Show("加密成功，耗时" + t + "秒", "提示") == DialogResult.OK)
                        {
                            invokeDelegate = delegate()