515 lines
20 KiB
C#
515 lines
20 KiB
C#
/*
|
|
* SecureBlackbox 2024 .NET Edition - Sample Project
|
|
*
|
|
* This sample project demonstrates the usage of SecureBlackbox in a
|
|
* simple, straightforward way. It is not intended to be a complete
|
|
* application. Error handling and other checks are simplified for clarity.
|
|
*
|
|
* www.nsoftware.com/secureblackbox
|
|
*
|
|
* This code is subject to the terms and conditions specified in the
|
|
* corresponding product license agreement which outlines the authorized
|
|
* usage and restrictions.
|
|
*
|
|
*/
|
|
|
|
using System;
|
|
using System.Windows.Forms;
|
|
using nsoftware.SecureBlackbox;
|
|
using System.Text;
|
|
using System.Linq;
|
|
|
|
namespace PDFSignerDemo
|
|
{
|
|
/// <summary>
|
|
/// Summary description for frmMain.
|
|
/// </summary>
|
|
public class MainForm : System.Windows.Forms.Form
|
|
{
|
|
private System.Windows.Forms.Label lbInputFile;
|
|
private System.Windows.Forms.TextBox edInputFile;
|
|
private System.Windows.Forms.Button sbBrowseInputFile;
|
|
private System.Windows.Forms.OpenFileDialog dlgOpen;
|
|
/// <summary>
|
|
/// Required designer variable.
|
|
/// </summary>
|
|
private System.ComponentModel.Container components = null;
|
|
private System.Windows.Forms.Button btnSign;
|
|
private TextBox edOutputFile;
|
|
private Button button1;
|
|
private Label label2;
|
|
|
|
private SaveFileDialog dlgSave;
|
|
public CheckBox cbVisible;
|
|
private Label label1;
|
|
private ComboBox cbLevel;
|
|
private Button btnBrowseCert;
|
|
private TextBox edCertPassword;
|
|
private TextBox edSigningCertificate;
|
|
private Label lCertPassword;
|
|
private Label label6;
|
|
private Label label7;
|
|
private GroupBox groupBox5;
|
|
private Label label3;
|
|
private Button btnBrowseKey;
|
|
private TextBox edSigningKey;
|
|
private Label label4;
|
|
private PDFSigner signer;
|
|
|
|
public MainForm()
|
|
{
|
|
//
|
|
// Required for Windows Form Designer support
|
|
//
|
|
InitializeComponent();
|
|
|
|
//
|
|
// TODO: Add any constructor code after InitializeComponent call
|
|
//
|
|
signer = new PDFSigner();
|
|
signer.OnExternalSign += new PDFSigner.OnExternalSignHandler(DoExternalSign);
|
|
|
|
cbLevel.SelectedIndex = 1;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Clean up any resources being used.
|
|
/// </summary>
|
|
protected override void Dispose(bool disposing)
|
|
{
|
|
if (disposing)
|
|
{
|
|
if (components != null)
|
|
{
|
|
components.Dispose();
|
|
signer.Dispose();
|
|
}
|
|
}
|
|
base.Dispose(disposing);
|
|
}
|
|
|
|
public static byte[] HexStringToByteArray(string hex)
|
|
{
|
|
return Enumerable.Range(0, hex.Length)
|
|
.Where(x => x % 2 == 0)
|
|
.Select(x => Convert.ToByte(hex.Substring(x, 2), 16))
|
|
.ToArray();
|
|
}
|
|
|
|
public static string ByteArrayToHexString(byte[] ba)
|
|
{
|
|
StringBuilder hex = new StringBuilder(ba.Length * 2);
|
|
foreach (byte b in ba)
|
|
hex.AppendFormat("{0:x2}", b);
|
|
return hex.ToString();
|
|
}
|
|
|
|
private void DoExternalSign(object sender, PDFSignerExternalSignEventArgs e)
|
|
{
|
|
PublicKeyCrypto crypto = new PublicKeyCrypto();
|
|
|
|
try
|
|
{
|
|
CryptoKeyManager keymanager = new CryptoKeyManager();
|
|
|
|
keymanager.ImportFromFile(edSigningKey.Text, 3, "", "", e.Pars, 0, "");
|
|
|
|
crypto.Key = keymanager.Key;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
MessageBox.Show("Cannot load key!");
|
|
}
|
|
|
|
try
|
|
{
|
|
crypto.HashAlgorithm = e.HashAlgorithm;
|
|
crypto.InputIsHash = true;
|
|
crypto.SchemeParams = e.Pars;
|
|
|
|
var inBuf = HexStringToByteArray(e.Data);
|
|
var outBuf = crypto.Sign(inBuf, true);
|
|
|
|
e.SignedData = ByteArrayToHexString(outBuf);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
MessageBox.Show("Cannot sign data!");
|
|
}
|
|
}
|
|
|
|
#region Windows Form Designer generated code
|
|
/// <summary>
|
|
/// Required method for Designer support - do not modify
|
|
/// the contents of this method with the code editor.
|
|
/// </summary>
|
|
private void InitializeComponent()
|
|
{
|
|
this.lbInputFile = new System.Windows.Forms.Label();
|
|
this.edInputFile = new System.Windows.Forms.TextBox();
|
|
this.sbBrowseInputFile = new System.Windows.Forms.Button();
|
|
this.btnSign = new System.Windows.Forms.Button();
|
|
this.dlgOpen = new System.Windows.Forms.OpenFileDialog();
|
|
this.edOutputFile = new System.Windows.Forms.TextBox();
|
|
this.button1 = new System.Windows.Forms.Button();
|
|
this.label2 = new System.Windows.Forms.Label();
|
|
this.dlgSave = new System.Windows.Forms.SaveFileDialog();
|
|
this.cbVisible = new System.Windows.Forms.CheckBox();
|
|
this.label1 = new System.Windows.Forms.Label();
|
|
this.cbLevel = new System.Windows.Forms.ComboBox();
|
|
this.btnBrowseCert = new System.Windows.Forms.Button();
|
|
this.edCertPassword = new System.Windows.Forms.TextBox();
|
|
this.edSigningCertificate = new System.Windows.Forms.TextBox();
|
|
this.lCertPassword = new System.Windows.Forms.Label();
|
|
this.label6 = new System.Windows.Forms.Label();
|
|
this.label7 = new System.Windows.Forms.Label();
|
|
this.groupBox5 = new System.Windows.Forms.GroupBox();
|
|
this.label3 = new System.Windows.Forms.Label();
|
|
this.btnBrowseKey = new System.Windows.Forms.Button();
|
|
this.edSigningKey = new System.Windows.Forms.TextBox();
|
|
this.label4 = new System.Windows.Forms.Label();
|
|
this.groupBox5.SuspendLayout();
|
|
this.SuspendLayout();
|
|
//
|
|
// lbInputFile
|
|
//
|
|
this.lbInputFile.Location = new System.Drawing.Point(5, 52);
|
|
this.lbInputFile.Name = "lbInputFile";
|
|
this.lbInputFile.Size = new System.Drawing.Size(60, 13);
|
|
this.lbInputFile.TabIndex = 0;
|
|
this.lbInputFile.Text = "Input file:";
|
|
//
|
|
// edInputFile
|
|
//
|
|
this.edInputFile.Location = new System.Drawing.Point(70, 49);
|
|
this.edInputFile.Name = "edInputFile";
|
|
this.edInputFile.Size = new System.Drawing.Size(334, 20);
|
|
this.edInputFile.TabIndex = 1;
|
|
//
|
|
// sbBrowseInputFile
|
|
//
|
|
this.sbBrowseInputFile.Location = new System.Drawing.Point(410, 46);
|
|
this.sbBrowseInputFile.Name = "sbBrowseInputFile";
|
|
this.sbBrowseInputFile.Size = new System.Drawing.Size(75, 25);
|
|
this.sbBrowseInputFile.TabIndex = 2;
|
|
this.sbBrowseInputFile.Text = "Browse...";
|
|
this.sbBrowseInputFile.Click += new System.EventHandler(this.sbBrowseInputFile_Click);
|
|
//
|
|
// btnSign
|
|
//
|
|
this.btnSign.Location = new System.Drawing.Point(410, 321);
|
|
this.btnSign.Name = "btnSign";
|
|
this.btnSign.Size = new System.Drawing.Size(75, 25);
|
|
this.btnSign.TabIndex = 8;
|
|
this.btnSign.Text = "Sign";
|
|
this.btnSign.Click += new System.EventHandler(this.btnSign_Click);
|
|
//
|
|
// edOutputFile
|
|
//
|
|
this.edOutputFile.Location = new System.Drawing.Point(70, 79);
|
|
this.edOutputFile.Name = "edOutputFile";
|
|
this.edOutputFile.Size = new System.Drawing.Size(334, 20);
|
|
this.edOutputFile.TabIndex = 19;
|
|
//
|
|
// button1
|
|
//
|
|
this.button1.Location = new System.Drawing.Point(410, 76);
|
|
this.button1.Name = "button1";
|
|
this.button1.Size = new System.Drawing.Size(75, 25);
|
|
this.button1.TabIndex = 20;
|
|
this.button1.Text = "Browse...";
|
|
this.button1.Click += new System.EventHandler(this.button1_Click);
|
|
//
|
|
// label2
|
|
//
|
|
this.label2.Location = new System.Drawing.Point(5, 82);
|
|
this.label2.Name = "label2";
|
|
this.label2.Size = new System.Drawing.Size(60, 13);
|
|
this.label2.TabIndex = 18;
|
|
this.label2.Text = "Output file:";
|
|
//
|
|
// cbVisible
|
|
//
|
|
this.cbVisible.AutoSize = true;
|
|
this.cbVisible.Checked = true;
|
|
this.cbVisible.CheckState = System.Windows.Forms.CheckState.Checked;
|
|
this.cbVisible.Location = new System.Drawing.Point(203, 32);
|
|
this.cbVisible.Name = "cbVisible";
|
|
this.cbVisible.Size = new System.Drawing.Size(102, 17);
|
|
this.cbVisible.TabIndex = 25;
|
|
this.cbVisible.Text = "Visible signature";
|
|
//
|
|
// label1
|
|
//
|
|
this.label1.AutoSize = true;
|
|
this.label1.Location = new System.Drawing.Point(7, 33);
|
|
this.label1.Name = "label1";
|
|
this.label1.Size = new System.Drawing.Size(33, 13);
|
|
this.label1.TabIndex = 34;
|
|
this.label1.Text = "Level";
|
|
//
|
|
// cbLevel
|
|
//
|
|
this.cbLevel.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
|
|
this.cbLevel.FormattingEnabled = true;
|
|
this.cbLevel.Items.AddRange(new object[] {
|
|
"Legacy",
|
|
"Baseline B",
|
|
"Baseline T",
|
|
"Baseline LT",
|
|
"Baseline LTA",
|
|
"BES",
|
|
"EPES",
|
|
"LTV"});
|
|
this.cbLevel.Location = new System.Drawing.Point(54, 30);
|
|
this.cbLevel.Name = "cbLevel";
|
|
this.cbLevel.Size = new System.Drawing.Size(121, 21);
|
|
this.cbLevel.TabIndex = 35;
|
|
//
|
|
// btnBrowseCert
|
|
//
|
|
this.btnBrowseCert.Location = new System.Drawing.Point(270, 73);
|
|
this.btnBrowseCert.Name = "btnBrowseCert";
|
|
this.btnBrowseCert.Size = new System.Drawing.Size(75, 25);
|
|
this.btnBrowseCert.TabIndex = 43;
|
|
this.btnBrowseCert.Text = "Browse...";
|
|
this.btnBrowseCert.Click += new System.EventHandler(this.btnBrowseCert_Click);
|
|
//
|
|
// edCertPassword
|
|
//
|
|
this.edCertPassword.Location = new System.Drawing.Point(115, 110);
|
|
this.edCertPassword.Name = "edCertPassword";
|
|
this.edCertPassword.PasswordChar = '*';
|
|
this.edCertPassword.Size = new System.Drawing.Size(230, 20);
|
|
this.edCertPassword.TabIndex = 42;
|
|
//
|
|
// edSigningCertificate
|
|
//
|
|
this.edSigningCertificate.Location = new System.Drawing.Point(10, 76);
|
|
this.edSigningCertificate.Name = "edSigningCertificate";
|
|
this.edSigningCertificate.Size = new System.Drawing.Size(254, 20);
|
|
this.edSigningCertificate.TabIndex = 41;
|
|
//
|
|
// lCertPassword
|
|
//
|
|
this.lCertPassword.AutoSize = true;
|
|
this.lCertPassword.Location = new System.Drawing.Point(7, 113);
|
|
this.lCertPassword.Name = "lCertPassword";
|
|
this.lCertPassword.Size = new System.Drawing.Size(105, 13);
|
|
this.lCertPassword.TabIndex = 40;
|
|
this.lCertPassword.Text = "Certificate password:";
|
|
//
|
|
// label6
|
|
//
|
|
this.label6.AutoSize = true;
|
|
this.label6.Location = new System.Drawing.Point(7, 60);
|
|
this.label6.Name = "label6";
|
|
this.label6.Size = new System.Drawing.Size(94, 13);
|
|
this.label6.TabIndex = 44;
|
|
this.label6.Text = "Signing certificate:";
|
|
//
|
|
// label7
|
|
//
|
|
this.label7.AutoSize = true;
|
|
this.label7.ForeColor = System.Drawing.SystemColors.Highlight;
|
|
this.label7.Location = new System.Drawing.Point(5, 5);
|
|
this.label7.Name = "label7";
|
|
this.label7.Size = new System.Drawing.Size(402, 13);
|
|
this.label7.TabIndex = 45;
|
|
this.label7.Text = "This sample illustrates the use of PDFSigner component for signing PDF documents." +
|
|
"";
|
|
//
|
|
// groupBox5
|
|
//
|
|
this.groupBox5.Controls.Add(this.label3);
|
|
this.groupBox5.Controls.Add(this.btnBrowseKey);
|
|
this.groupBox5.Controls.Add(this.edSigningKey);
|
|
this.groupBox5.Controls.Add(this.cbLevel);
|
|
this.groupBox5.Controls.Add(this.cbVisible);
|
|
this.groupBox5.Controls.Add(this.label6);
|
|
this.groupBox5.Controls.Add(this.btnBrowseCert);
|
|
this.groupBox5.Controls.Add(this.label1);
|
|
this.groupBox5.Controls.Add(this.edCertPassword);
|
|
this.groupBox5.Controls.Add(this.lCertPassword);
|
|
this.groupBox5.Controls.Add(this.edSigningCertificate);
|
|
this.groupBox5.Location = new System.Drawing.Point(5, 114);
|
|
this.groupBox5.Name = "groupBox5";
|
|
this.groupBox5.Size = new System.Drawing.Size(480, 197);
|
|
this.groupBox5.TabIndex = 46;
|
|
this.groupBox5.TabStop = false;
|
|
this.groupBox5.Text = "Signing options ";
|
|
//
|
|
// label3
|
|
//
|
|
this.label3.AutoSize = true;
|
|
this.label3.Location = new System.Drawing.Point(7, 150);
|
|
this.label3.Name = "label3";
|
|
this.label3.Size = new System.Drawing.Size(135, 13);
|
|
this.label3.TabIndex = 47;
|
|
this.label3.Text = "Key file for external signing:";
|
|
//
|
|
// btnBrowseKey
|
|
//
|
|
this.btnBrowseKey.Location = new System.Drawing.Point(270, 163);
|
|
this.btnBrowseKey.Name = "btnBrowseKey";
|
|
this.btnBrowseKey.Size = new System.Drawing.Size(75, 25);
|
|
this.btnBrowseKey.TabIndex = 46;
|
|
this.btnBrowseKey.Text = "Browse...";
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
|