public void Pkcs11RsaSignatureReuseTest()
{
using (Pkcs11RsaSignature pkcs11RsaSignature = new Pkcs11RsaSignature(_libraryPath, _tokenSerial, _tokenLabel, _pin, _ckaLabel, _ckaId, _hashAlgorithm))
{
byte[] signingCertificate = pkcs11RsaSignature.GetSigningCertificate();
List <byte[]> otherCertificates = pkcs11RsaSignature.GetAllCertificates();
ICollection <X509Certificate> certPath = CertUtils.BuildCertPath(signingCertificate, otherCertificates);
for (int i = 0; i < 100; i++)
{
string unsignedPdfPath = GetTempDocPath();
string signedPdfPath = GetTempDocPath();
try
{
GenerateRandomPdf(unsignedPdfPath);
using (PdfReader pdfReader = new PdfReader(unsignedPdfPath))
using (FileStream outputStream = new FileStream(signedPdfPath, FileMode.Create))
using (PdfStamper pdfStamper = PdfStamper.CreateSignature(pdfReader, outputStream, '\0', GetTempDocPath(), true))
MakeSignature.SignDetached(pdfStamper.SignatureAppearance, pkcs11RsaSignature, certPath, null, null, null, 0, CryptoStandard.CADES);
Assert.IsTrue(1 == VerifySignatureIntegrity(signedPdfPath));
}
finally
{
File.Delete(unsignedPdfPath);
File.Delete(signedPdfPath);
}
}
}
}
public void BuildCertPathTest()
{
List <byte[]> otherCerts = null;
ICollection <BCX509.X509Certificate> certPath = null;
// Self-signed signing certificate
certPath = CertUtils.BuildCertPath(_derCert, otherCerts);
Assert.IsTrue(certPath.Count == 1);
Assert.IsTrue(Convert.ToBase64String(GetCertAt(certPath, 0).GetEncoded()) == Convert.ToBase64String(_derCert));
// Path cannot be built when signing certificate is not self-signed and no additional certs are provided
try
{
certPath = CertUtils.BuildCertPath(_endEntity, otherCerts);
Assert.Fail("Exception expected but not thrown");
}
catch (Exception ex)
{
Assert.IsTrue(ex is Org.BouncyCastle.Pkix.PkixCertPathBuilderException);
}
// Fails when additional certs are provided and the path cannot be build because root CA is missing
try
{
otherCerts = new List <byte[]>();
otherCerts.Add(_subCA);
certPath = CertUtils.BuildCertPath(_endEntity, otherCerts);
Assert.Fail("Exception expected but not thrown");
}
catch (Exception ex)
{
Assert.IsTrue(ex is Org.BouncyCastle.Pkix.PkixCertPathBuilderException);
}
// Fails when additional certs are provided and the path cannot be build because intermediate CA is missing
try
{
otherCerts = new List <byte[]>();
otherCerts.Add(_rootCA);
certPath = CertUtils.BuildCertPath(_endEntity, otherCerts);
Assert.Fail("Exception expected but not thrown");
}
catch (Exception ex)
{
Assert.IsTrue(ex is Org.BouncyCastle.Pkix.PkixCertPathBuilderException);
}
// Returns full chain when the path can be built
otherCerts = new List <byte[]>();
otherCerts.Add(_rootCA);
otherCerts.Add(_subCA);
certPath = CertUtils.BuildCertPath(_endEntity, otherCerts);
Assert.IsTrue(certPath.Count == 3);
Assert.IsTrue(Convert.ToBase64String(GetCertAt(certPath, 0).GetEncoded()) == Convert.ToBase64String(_endEntity));
Assert.IsTrue(Convert.ToBase64String(GetCertAt(certPath, 1).GetEncoded()) == Convert.ToBase64String(_subCA));
Assert.IsTrue(Convert.ToBase64String(GetCertAt(certPath, 2).GetEncoded()) == Convert.ToBase64String(_rootCA));
}
private void signPDF(int llx, int lly, int urx, int ury)
{
// Do something interesting with unsigned PDF document
FileInfo unsignedPdfInfo = new FileInfo(unsignedPdfPath);
//Assert.IsTrue(unsignedPdfInfo.Length > 0);
// Specify path to the unmanaged PCKS#11 library
string libraryPath = @"C:\Windows\System32\cvP11.dll";
// Specify serial number of the token that contains signing key. May be null if tokenLabel is specified.
string tokenSerial = @"910e21b0da172e34";
// Specify label of of the token that contains signing key. May be null if tokenSerial is specified
string tokenLabel = @"SuisseID";
// Specify PIN for the token
string pin = "091011";
// Specify label (value of CKA_LABEL attribute) of the private key used for signing. May be null if ckaId is specified.
string ckaLabel = null;
// Specify hex encoded string with identifier (value of CKA_ID attribute) of the private key used for signing. May be null if ckaLabel is specified.
string ckaId = "6D808CE0BF9C368FB0AD28E24366F646BA0B3F67";
// Specify hash algorihtm used for the signature creation
HashAlgorithm hashAlgorithm = HashAlgorithm.SHA256;
// Create instance of Pkcs11Signature class that allows iText to create PKCS#1 v1.5 RSA signature with the private key stored on PKCS#11 compatible device
using (Pkcs11RsaSignature pkcs11RsaSignature = new Pkcs11RsaSignature(libraryPath, tokenSerial, tokenLabel, pin, ckaLabel, ckaId, HashAlgorithm.SHA256))
{
// When signing certificate is stored on the token it can be usually read with GetSigningCertificate() method
byte[] signingCertificate = pkcs11RsaSignature.GetSigningCertificate();
// All certificates stored on the token can be usually read with GetAllCertificates() method
List <byte[]> otherCertificates = pkcs11RsaSignature.GetAllCertificates();
// Build certification path for the signing certificate
ICollection <Org.BouncyCastle.X509.X509Certificate> certPath = CertUtils.BuildCertPath(signingCertificate, otherCertificates);
// Read unsigned PDF document
using (PdfReader pdfReader = new PdfReader(unsignedPdfPath))
{
// Create output stream for signed PDF document
using (FileStream outputStream = new FileStream(signedPdfPath, FileMode.Create))
{
// Create PdfStamper that applies extra content to the PDF document
using (PdfStamper pdfStamper = PdfStamper.CreateSignature(pdfReader, outputStream, '\0', Path.GetTempFileName(), true))
{
// Sign PDF document
PdfSignatureAppearance signatureAppearance = pdfStamper.SignatureAppearance;
signatureAppearance.SignatureRenderingMode = PdfSignatureAppearance.RenderingMode.GRAPHIC_AND_DESCRIPTION;
signatureAppearance.SignatureGraphic = iTextSharp.text.Image.GetInstance("logo_sign.png");
signatureAppearance.SetVisibleSignature(new iTextSharp.text.Rectangle((float)llx, (float)lly, (float)urx, (float)ury), 1, null);
MakeSignature.SignDetached(pdfStamper.SignatureAppearance, pkcs11RsaSignature, certPath, null, null, null, 0, CryptoStandard.CADES);
//MakeSignature.SignDetached(pdfStamper.SignatureAppearance, pkcs11RsaSignature, certPath, null, null, null, 0, CryptoStandard.CADES);
}
}
}
}
// Do something interesting with the signed PDF document
FileInfo signedPdfInfo = new FileInfo(signedPdfPath);
//Assert.IsTrue(signedPdfInfo.Length > signedPdfPath.Length);
}
public void SignPdf(string inputPdfPath, string signedPdfPath, string tokenPin)
{
// Pkcs11RsaSignature can't find a private key by certificate label, only by certificate id.
var signingCertificateId = this.FindSigningCertificateId(tokenPin, this.ckaLabel);
var pkcs11RsaSignature = SmartCardUtils.SaferCreateSignature(this.pkcsLibPath, this.tokenLabel, tokenPin, signingCertificateId);
if (pkcs11RsaSignature == null)
{
throw new InvalidOperationException("Smart card read error.");
}
try
{
var rawSigningCertificate = pkcs11RsaSignature.SaferGetSigningCertificate();
var signingCertificate = SmartCardUtils.ParseCertificate(rawSigningCertificate);
var signatureAuthor = GetCertificateCn(signingCertificate.Subject);
var certificateChain = SmartCardUtils.GetCertificateChain(signingCertificate);
var certPath = CertUtils.BuildCertPath(rawSigningCertificate, certificateChain.Select(v => v.RawData).ToList());
using (var pdfReader = new PdfReader(inputPdfPath))
{
using (var outputStream = new FileStream(signedPdfPath, FileMode.Create))
{
// Create PdfStamper that applies extra content to the PDF document
using (var pdfStamper = PdfStamper.CreateSignature(pdfReader, outputStream, '\0', Path.GetTempFileName(), true))
{
pdfStamper.SignatureAppearance.SignatureCreator = signatureAuthor;
pdfStamper.SignatureAppearance.SignDate = DateTime.Now;
// Sign PDF document
MakeSignature.SignDetached(pdfStamper.SignatureAppearance, pkcs11RsaSignature, certPath, null, null, null, 0, CryptoStandard.CADES);
}
}
}
}
finally
{
pkcs11RsaSignature.Dispose();
}
}
public void SignPdfDocument()
{
// Specify path to the unsigned PDF that will be created by this code
string unsignedPdfPath = @"c:\temp\unsigned.pdf";
// Specify path to the signed PDF that will be created by this code
string signedPdfPath = @"c:\temp\signed.pdf";
// Create simple PDF document with iText
using (Document document = new Document(PageSize.A4, 50, 50, 50, 50))
{
using (FileStream outputStream = new FileStream(unsignedPdfPath, FileMode.Create))
{
using (PdfWriter pdfWriter = PdfWriter.GetInstance(document, outputStream))
{
document.Open();
document.Add(new Paragraph("Hello World!"));
document.Close();
}
}
}
// Do something interesting with unsigned PDF document
FileInfo unsignedPdfInfo = new FileInfo(unsignedPdfPath);
Assert.IsTrue(unsignedPdfInfo.Length > 0);
// Specify path to the unmanaged PCKS#11 library
string libraryPath = @"siecap11.dll";
// Specify serial number of the token that contains signing key. May be null if tokenLabel is specified.
string tokenSerial = null;
// Specify label of of the token that contains signing key. May be null if tokenSerial is specified
string tokenLabel = @"Pkcs11Interop";
// Specify PIN for the token
string pin = @"11111111";
// Specify label (value of CKA_LABEL attribute) of the private key used for signing. May be null if ckaId is specified.
string ckaLabel = @"John Doe";
// Specify hex encoded string with identifier (value of CKA_ID attribute) of the private key used for signing. May be null if ckaLabel is specified.
string ckaId = null;
// Specify hash algorihtm used for the signature creation
HashAlgorithm hashAlgorithm = HashAlgorithm.SHA256;
// Create instance of Pkcs11Signature class that allows iText to create PKCS#1 v1.5 RSA signature with the private key stored on PKCS#11 compatible device
using (Pkcs11RsaSignature pkcs11RsaSignature = new Pkcs11RsaSignature(libraryPath, tokenSerial, tokenLabel, pin, ckaLabel, ckaId, hashAlgorithm))
{
// When signing certificate is stored on the token it can be usually read with GetSigningCertificate() method
byte[] signingCertificate = pkcs11RsaSignature.GetSigningCertificate();
// All certificates stored on the token can be usually read with GetAllCertificates() method
List <byte[]> otherCertificates = pkcs11RsaSignature.GetAllCertificates();
// Build certification path for the signing certificate
ICollection <Org.BouncyCastle.X509.X509Certificate> certPath = CertUtils.BuildCertPath(signingCertificate, otherCertificates);
// Read unsigned PDF document
using (PdfReader pdfReader = new PdfReader(unsignedPdfPath))
{
// Create output stream for signed PDF document
using (FileStream outputStream = new FileStream(signedPdfPath, FileMode.Create))
{
// Create PdfStamper that applies extra content to the PDF document
using (PdfStamper pdfStamper = PdfStamper.CreateSignature(pdfReader, outputStream, '\0', Path.GetTempFileName(), true))
{
// Sign PDF document
MakeSignature.SignDetached(pdfStamper.SignatureAppearance, pkcs11RsaSignature, certPath, null, null, null, 0, CryptoStandard.CADES);
}
}
}
}
// Do something interesting with the signed PDF document
FileInfo signedPdfInfo = new FileInfo(signedPdfPath);
Assert.IsTrue(signedPdfInfo.Length > signedPdfPath.Length);
}
