515 lines
20 KiB
C#
515 lines
20 KiB
C#
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/*
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* SecureBlackbox 2024 .NET Edition - Sample Project
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*
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* This sample project demonstrates the usage of SecureBlackbox in a
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* simple, straightforward way. It is not intended to be a complete
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* application. Error handling and other checks are simplified for clarity.
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*
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* www.nsoftware.com/secureblackbox
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*
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* This code is subject to the terms and conditions specified in the
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* corresponding product license agreement which outlines the authorized
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* usage and restrictions.
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*
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*/
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using System;
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using System.Windows.Forms;
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using nsoftware.SecureBlackbox;
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using System.Text;
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using System.Linq;
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namespace PDFSignerDemo
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{
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/// <summary>
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/// Summary description for frmMain.
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/// </summary>
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public class MainForm : System.Windows.Forms.Form
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{
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private System.Windows.Forms.Label lbInputFile;
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private System.Windows.Forms.TextBox edInputFile;
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private System.Windows.Forms.Button sbBrowseInputFile;
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private System.Windows.Forms.OpenFileDialog dlgOpen;
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/// <summary>
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/// Required designer variable.
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/// </summary>
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private System.ComponentModel.Container components = null;
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private System.Windows.Forms.Button btnSign;
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private TextBox edOutputFile;
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private Button button1;
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private Label label2;
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private SaveFileDialog dlgSave;
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public CheckBox cbVisible;
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private Label label1;
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private ComboBox cbLevel;
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private Button btnBrowseCert;
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private TextBox edCertPassword;
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private TextBox edSigningCertificate;
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private Label lCertPassword;
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private Label label6;
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private Label label7;
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private GroupBox groupBox5;
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private Label label3;
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private Button btnBrowseKey;
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private TextBox edSigningKey;
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private Label label4;
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private PDFSigner signer;
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public MainForm()
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{
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//
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// Required for Windows Form Designer support
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//
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InitializeComponent();
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//
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// TODO: Add any constructor code after InitializeComponent call
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//
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signer = new PDFSigner();
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signer.OnExternalSign += new PDFSigner.OnExternalSignHandler(DoExternalSign);
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cbLevel.SelectedIndex = 1;
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}
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/// <summary>
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/// Clean up any resources being used.
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/// </summary>
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protected override void Dispose(bool disposing)
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{
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if (disposing)
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{
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if (components != null)
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{
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components.Dispose();
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signer.Dispose();
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}
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}
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base.Dispose(disposing);
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}
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public static byte[] HexStringToByteArray(string hex)
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{
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return Enumerable.Range(0, hex.Length)
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.Where(x => x % 2 == 0)
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.Select(x => Convert.ToByte(hex.Substring(x, 2), 16))
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.ToArray();
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}
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public static string ByteArrayToHexString(byte[] ba)
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{
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StringBuilder hex = new StringBuilder(ba.Length * 2);
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foreach (byte b in ba)
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hex.AppendFormat("{0:x2}", b);
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return hex.ToString();
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}
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private void DoExternalSign(object sender, PDFSignerExternalSignEventArgs e)
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{
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PublicKeyCrypto crypto = new PublicKeyCrypto();
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try
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{
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CryptoKeyManager keymanager = new CryptoKeyManager();
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keymanager.ImportFromFile(edSigningKey.Text, 3, "", "", e.Pars, 0, "");
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crypto.Key = keymanager.Key;
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}
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catch (Exception ex)
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{
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MessageBox.Show("Cannot load key!");
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}
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try
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{
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crypto.HashAlgorithm = e.HashAlgorithm;
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crypto.InputIsHash = true;
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crypto.SchemeParams = e.Pars;
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var inBuf = HexStringToByteArray(e.Data);
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var outBuf = crypto.Sign(inBuf, true);
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e.SignedData = ByteArrayToHexString(outBuf);
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}
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catch (Exception ex)
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{
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MessageBox.Show("Cannot sign data!");
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}
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}
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#region Windows Form Designer generated code
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/// <summary>
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/// Required method for Designer support - do not modify
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/// the contents of this method with the code editor.
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/// </summary>
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private void InitializeComponent()
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{
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this.lbInputFile = new System.Windows.Forms.Label();
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this.edInputFile = new System.Windows.Forms.TextBox();
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this.sbBrowseInputFile = new System.Windows.Forms.Button();
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this.btnSign = new System.Windows.Forms.Button();
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this.dlgOpen = new System.Windows.Forms.OpenFileDialog();
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this.edOutputFile = new System.Windows.Forms.TextBox();
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this.button1 = new System.Windows.Forms.Button();
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this.label2 = new System.Windows.Forms.Label();
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this.dlgSave = new System.Windows.Forms.SaveFileDialog();
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this.cbVisible = new System.Windows.Forms.CheckBox();
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this.label1 = new System.Windows.Forms.Label();
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this.cbLevel = new System.Windows.Forms.ComboBox();
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this.btnBrowseCert = new System.Windows.Forms.Button();
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this.edCertPassword = new System.Windows.Forms.TextBox();
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this.edSigningCertificate = new System.Windows.Forms.TextBox();
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this.lCertPassword = new System.Windows.Forms.Label();
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this.label6 = new System.Windows.Forms.Label();
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this.label7 = new System.Windows.Forms.Label();
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this.groupBox5 = new System.Windows.Forms.GroupBox();
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this.label3 = new System.Windows.Forms.Label();
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this.btnBrowseKey = new System.Windows.Forms.Button();
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this.edSigningKey = new System.Windows.Forms.TextBox();
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this.label4 = new System.Windows.Forms.Label();
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this.groupBox5.SuspendLayout();
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this.SuspendLayout();
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//
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// lbInputFile
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//
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this.lbInputFile.Location = new System.Drawing.Point(5, 52);
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this.lbInputFile.Name = "lbInputFile";
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this.lbInputFile.Size = new System.Drawing.Size(60, 13);
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this.lbInputFile.TabIndex = 0;
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this.lbInputFile.Text = "Input file:";
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//
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// edInputFile
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//
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this.edInputFile.Location = new System.Drawing.Point(70, 49);
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this.edInputFile.Name = "edInputFile";
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this.edInputFile.Size = new System.Drawing.Size(334, 20);
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this.edInputFile.TabIndex = 1;
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//
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// sbBrowseInputFile
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//
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this.sbBrowseInputFile.Location = new System.Drawing.Point(410, 46);
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this.sbBrowseInputFile.Name = "sbBrowseInputFile";
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this.sbBrowseInputFile.Size = new System.Drawing.Size(75, 25);
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this.sbBrowseInputFile.TabIndex = 2;
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this.sbBrowseInputFile.Text = "Browse...";
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this.sbBrowseInputFile.Click += new System.EventHandler(this.sbBrowseInputFile_Click);
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//
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// btnSign
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//
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this.btnSign.Location = new System.Drawing.Point(410, 321);
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this.btnSign.Name = "btnSign";
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this.btnSign.Size = new System.Drawing.Size(75, 25);
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this.btnSign.TabIndex = 8;
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this.btnSign.Text = "Sign";
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this.btnSign.Click += new System.EventHandler(this.btnSign_Click);
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//
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// edOutputFile
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//
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this.edOutputFile.Location = new System.Drawing.Point(70, 79);
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this.edOutputFile.Name = "edOutputFile";
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this.edOutputFile.Size = new System.Drawing.Size(334, 20);
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this.edOutputFile.TabIndex = 19;
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//
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// button1
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//
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this.button1.Location = new System.Drawing.Point(410, 76);
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this.button1.Name = "button1";
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this.button1.Size = new System.Drawing.Size(75, 25);
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this.button1.TabIndex = 20;
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this.button1.Text = "Browse...";
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this.button1.Click += new System.EventHandler(this.button1_Click);
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//
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// label2
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//
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this.label2.Location = new System.Drawing.Point(5, 82);
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this.label2.Name = "label2";
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this.label2.Size = new System.Drawing.Size(60, 13);
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this.label2.TabIndex = 18;
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this.label2.Text = "Output file:";
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//
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// cbVisible
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//
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this.cbVisible.AutoSize = true;
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this.cbVisible.Checked = true;
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this.cbVisible.CheckState = System.Windows.Forms.CheckState.Checked;
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this.cbVisible.Location = new System.Drawing.Point(203, 32);
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this.cbVisible.Name = "cbVisible";
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this.cbVisible.Size = new System.Drawing.Size(102, 17);
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this.cbVisible.TabIndex = 25;
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this.cbVisible.Text = "Visible signature";
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//
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// label1
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//
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this.label1.AutoSize = true;
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this.label1.Location = new System.Drawing.Point(7, 33);
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this.label1.Name = "label1";
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this.label1.Size = new System.Drawing.Size(33, 13);
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this.label1.TabIndex = 34;
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this.label1.Text = "Level";
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//
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// cbLevel
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//
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this.cbLevel.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
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this.cbLevel.FormattingEnabled = true;
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this.cbLevel.Items.AddRange(new object[] {
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"Legacy",
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"Baseline B",
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"Baseline T",
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"Baseline LT",
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"Baseline LTA",
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"BES",
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"EPES",
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"LTV"});
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this.cbLevel.Location = new System.Drawing.Point(54, 30);
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this.cbLevel.Name = "cbLevel";
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this.cbLevel.Size = new System.Drawing.Size(121, 21);
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this.cbLevel.TabIndex = 35;
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//
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// btnBrowseCert
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//
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this.btnBrowseCert.Location = new System.Drawing.Point(270, 73);
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this.btnBrowseCert.Name = "btnBrowseCert";
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this.btnBrowseCert.Size = new System.Drawing.Size(75, 25);
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this.btnBrowseCert.TabIndex = 43;
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this.btnBrowseCert.Text = "Browse...";
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this.btnBrowseCert.Click += new System.EventHandler(this.btnBrowseCert_Click);
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//
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// edCertPassword
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//
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this.edCertPassword.Location = new System.Drawing.Point(115, 110);
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this.edCertPassword.Name = "edCertPassword";
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this.edCertPassword.PasswordChar = '*';
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this.edCertPassword.Size = new System.Drawing.Size(230, 20);
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this.edCertPassword.TabIndex = 42;
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//
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// edSigningCertificate
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//
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this.edSigningCertificate.Location = new System.Drawing.Point(10, 76);
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this.edSigningCertificate.Name = "edSigningCertificate";
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this.edSigningCertificate.Size = new System.Drawing.Size(254, 20);
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this.edSigningCertificate.TabIndex = 41;
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//
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// lCertPassword
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//
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this.lCertPassword.AutoSize = true;
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this.lCertPassword.Location = new System.Drawing.Point(7, 113);
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this.lCertPassword.Name = "lCertPassword";
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this.lCertPassword.Size = new System.Drawing.Size(105, 13);
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this.lCertPassword.TabIndex = 40;
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this.lCertPassword.Text = "Certificate password:";
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//
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// label6
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//
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this.label6.AutoSize = true;
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this.label6.Location = new System.Drawing.Point(7, 60);
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this.label6.Name = "label6";
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this.label6.Size = new System.Drawing.Size(94, 13);
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this.label6.TabIndex = 44;
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this.label6.Text = "Signing certificate:";
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//
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// label7
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//
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this.label7.AutoSize = true;
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this.label7.ForeColor = System.Drawing.SystemColors.Highlight;
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this.label7.Location = new System.Drawing.Point(5, 5);
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this.label7.Name = "label7";
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this.label7.Size = new System.Drawing.Size(402, 13);
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this.label7.TabIndex = 45;
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this.label7.Text = "This sample illustrates the use of PDFSigner component for signing PDF documents." +
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"";
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//
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// groupBox5
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//
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this.groupBox5.Controls.Add(this.label3);
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this.groupBox5.Controls.Add(this.btnBrowseKey);
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this.groupBox5.Controls.Add(this.edSigningKey);
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this.groupBox5.Controls.Add(this.cbLevel);
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this.groupBox5.Controls.Add(this.cbVisible);
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this.groupBox5.Controls.Add(this.label6);
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this.groupBox5.Controls.Add(this.btnBrowseCert);
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this.groupBox5.Controls.Add(this.label1);
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this.groupBox5.Controls.Add(this.edCertPassword);
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this.groupBox5.Controls.Add(this.lCertPassword);
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this.groupBox5.Controls.Add(this.edSigningCertificate);
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this.groupBox5.Location = new System.Drawing.Point(5, 114);
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this.groupBox5.Name = "groupBox5";
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this.groupBox5.Size = new System.Drawing.Size(480, 197);
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this.groupBox5.TabIndex = 46;
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this.groupBox5.TabStop = false;
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this.groupBox5.Text = "Signing options ";
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//
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// label3
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//
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this.label3.AutoSize = true;
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this.label3.Location = new System.Drawing.Point(7, 150);
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this.label3.Name = "label3";
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this.label3.Size = new System.Drawing.Size(135, 13);
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this.label3.TabIndex = 47;
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this.label3.Text = "Key file for external signing:";
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//
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// btnBrowseKey
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//
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this.btnBrowseKey.Location = new System.Drawing.Point(270, 163);
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this.btnBrowseKey.Name = "btnBrowseKey";
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this.btnBrowseKey.Size = new System.Drawing.Size(75, 25);
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this.btnBrowseKey.TabIndex = 46;
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this.btnBrowseKey.Text = "Browse...";
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this.btnBrowseKey.Click += new System.EventHandler(this.btnBrowseKey_Click);
|
||
|
|
//
|
||
|
|
// edSigningKey
|
||
|
|
//
|
||
|
|
this.edSigningKey.Location = new System.Drawing.Point(10, 166);
|
||
|
|
this.edSigningKey.Name = "edSigningKey";
|
||
|
|
this.edSigningKey.Size = new System.Drawing.Size(254, 20);
|
||
|
|
this.edSigningKey.TabIndex = 45;
|
||
|
|
//
|
||
|
|
// label4
|
||
|
|
//
|
||
|
|
this.label4.AutoSize = true;
|
||
|
|
this.label4.ForeColor = System.Drawing.SystemColors.Highlight;
|
||
|
|
this.label4.Location = new System.Drawing.Point(5, 24);
|
||
|
|
this.label4.Name = "label4";
|
||
|
|
this.label4.Size = new System.Drawing.Size(245, 13);
|
||
|
|
this.label4.TabIndex = 47;
|
||
|
|
this.label4.Text = "Please pick the signing certificate and click \'Sign\'. ";
|
||
|
|
//
|
||
|
|
// MainForm
|
||
|
|
//
|
||
|
|
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
|
||
|
|
this.ClientSize = new System.Drawing.Size(494, 355);
|
||
|
|
this.Controls.Add(this.label4);
|
||
|
|
this.Controls.Add(this.groupBox5);
|
||
|
|
this.Controls.Add(this.label7);
|
||
|
|
this.Controls.Add(this.edOutputFile);
|
||
|
|
this.Controls.Add(this.button1);
|
||
|
|
this.Controls.Add(this.label2);
|
||
|
|
this.Controls.Add(this.edInputFile);
|
||
|
|
this.Controls.Add(this.btnSign);
|
||
|
|
this.Controls.Add(this.sbBrowseInputFile);
|
||
|
|
this.Controls.Add(this.lbInputFile);
|
||
|
|
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
|
||
|
|
this.MaximizeBox = false;
|
||
|
|
this.Name = "MainForm";
|
||
|
|
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
|
||
|
|
this.Text = "PDF Signer Demo";
|
||
|
|
this.groupBox5.ResumeLayout(false);
|
||
|
|
this.groupBox5.PerformLayout();
|
||
|
|
this.ResumeLayout(false);
|
||
|
|
this.PerformLayout();
|
||
|
|
|
||
|
|
}
|
||
|
|
#endregion
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// The main entry point for the application.
|
||
|
|
/// </summary>
|
||
|
|
[STAThread]
|
||
|
|
static void Main()
|
||
|
|
{
|
||
|
|
Application.Run(new MainForm());
|
||
|
|
}
|
||
|
|
|
||
|
|
private void sbBrowseInputFile_Click(object sender, System.EventArgs e)
|
||
|
|
{
|
||
|
|
dlgOpen.InitialDirectory = Application.StartupPath;
|
||
|
|
dlgOpen.FileName = edInputFile.Text;
|
||
|
|
if (dlgOpen.ShowDialog() == DialogResult.OK)
|
||
|
|
edInputFile.Text = dlgOpen.FileName;
|
||
|
|
}
|
||
|
|
|
||
|
|
public Certificate LoadCertificate(string file, string password)
|
||
|
|
{
|
||
|
|
Certificate cert = null;
|
||
|
|
|
||
|
|
if (file.Length > 0)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
CertificateManager certmanager = new CertificateManager();
|
||
|
|
|
||
|
|
certmanager.ImportFromFile(file, password);
|
||
|
|
|
||
|
|
cert = certmanager.Certificate;
|
||
|
|
}
|
||
|
|
catch (Exception e)
|
||
|
|
{
|
||
|
|
MessageBox.Show("Cannot load certificate!");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return cert;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void btnSign_Click(object sender, System.EventArgs e)
|
||
|
|
{
|
||
|
|
signer.InputFile = edInputFile.Text;
|
||
|
|
signer.OutputFile = edOutputFile.Text;
|
||
|
|
|
||
|
|
signer.SigningCertificate = LoadCertificate(edSigningCertificate.Text, edCertPassword.Text);
|
||
|
|
|
||
|
|
if (signer.SigningCertificate.KeyAlgorithm.Contains("id-dsa"))
|
||
|
|
{
|
||
|
|
MessageBox.Show("The certificate was found to contain a DSA key. The hash algorithm has been switched to SHA1.");
|
||
|
|
|
||
|
|
signer.NewSignature.HashAlgorithm = "SHA1";
|
||
|
|
}
|
||
|
|
|
||
|
|
signer.NewSignature.SignatureType = PDFSignatureTypes.pstPAdES;
|
||
|
|
|
||
|
|
switch (cbLevel.SelectedIndex)
|
||
|
|
{
|
||
|
|
case 0: signer.NewSignature.Level = PAdESSignatureLevels.paslGeneric; break;
|
||
|
|
case 1: signer.NewSignature.Level = PAdESSignatureLevels.paslBaselineB; break;
|
||
|
|
case 2: signer.NewSignature.Level = PAdESSignatureLevels.paslBaselineT; break;
|
||
|
|
case 3: signer.NewSignature.Level = PAdESSignatureLevels.paslBaselineLT; break;
|
||
|
|
case 4: signer.NewSignature.Level = PAdESSignatureLevels.paslBaselineLTA; break;
|
||
|
|
case 5: signer.NewSignature.Level = PAdESSignatureLevels.paslBES; break;
|
||
|
|
case 6: signer.NewSignature.Level = PAdESSignatureLevels.paslEPES; break;
|
||
|
|
case 7: signer.NewSignature.Level = PAdESSignatureLevels.paslLTV; break;
|
||
|
|
}
|
||
|
|
signer.Widget.Invisible = !cbVisible.Checked;
|
||
|
|
|
||
|
|
signer.IgnoreChainValidationErrors = true;
|
||
|
|
|
||
|
|
signer.NewSignature.AuthorName = "test demo author";
|
||
|
|
signer.NewSignature.Reason = "test demo reason";
|
||
|
|
|
||
|
|
signer.ExternalCrypto.Mode = ExternalCryptoModes.ecmGeneric;
|
||
|
|
|
||
|
|
try
|
||
|
|
{
|
||
|
|
signer.SignExternal();
|
||
|
|
|
||
|
|
MessageBox.Show("PDF file successfully signed");
|
||
|
|
}
|
||
|
|
catch (Exception ex)
|
||
|
|
{
|
||
|
|
MessageBox.Show(ex.Message);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void button1_Click(object sender, EventArgs e)
|
||
|
|
{
|
||
|
|
dlgSave.InitialDirectory = Application.StartupPath;
|
||
|
|
dlgSave.FileName = edInputFile.Text;
|
||
|
|
if (dlgSave.ShowDialog() == DialogResult.OK)
|
||
|
|
edOutputFile.Text = dlgSave.FileName;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void btnBrowseCert_Click(object sender, EventArgs e)
|
||
|
|
{
|
||
|
|
if (dlgOpen.ShowDialog() == DialogResult.OK)
|
||
|
|
edSigningCertificate.Text = dlgOpen.FileName;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void btnBrowseKey_Click(object sender, EventArgs e)
|
||
|
|
{
|
||
|
|
if (dlgOpen.ShowDialog() == DialogResult.OK)
|
||
|
|
edSigningKey.Text = dlgOpen.FileName;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|