Hello,
I am trying to migrate my old digital signature program to the new
iText-5.3.0, but it failed.
I tried to test the digital signature in the iText-5.3.0 tutorial but it
not worked with Smartcard. It gots some exception:
java.security.NoSuchAlgorithmException: no such algorithm: SHA1 for
> provider SunPKCS11-GD
> at sun.security.jca.GetInstance.getService(GetInstance.java:70)
> at sun.security.jca.GetInstance.getInstance(GetInstance.java:190)
> at java.security.Security.getImpl(Security.java:662)
> at java.security.MessageDigest.getInstance(MessageDigest.java:185)
> at
> com.itextpdf.text.pdf.security.MakeSignature.signDetached(MakeSignature.java:128)
> at TestSign.sign(TestSign.java:46)
> at TestSign.main(TestSign.java:74)
>
>
The following is my example, please advise me if the codes exist mistakes.
import java.io.FileOutputStream;
> import java.io.IOException;
> import java.security.GeneralSecurityException;
> import java.security.KeyStore;
> import java.security.PrivateKey;
> import java.security.Security;
> import java.security.cert.Certificate;
>
> import sun.security.pkcs11.SunPKCS11;
>
> import com.itextpdf.text.DocumentException;
> import com.itextpdf.text.Rectangle;
> import com.itextpdf.text.pdf.PdfReader;
> import com.itextpdf.text.pdf.PdfSignatureAppearance;
> import com.itextpdf.text.pdf.PdfStamper;
> import com.itextpdf.text.pdf.security.DigestAlgorithms;
> import com.itextpdf.text.pdf.security.MakeSignature;
> import com.itextpdf.text.pdf.security.PrivateKeySignature;
>
> /**
> *
> */
>
> /**
> * @author Eric Chow (hkc)
> *
> */
> public class TestSign {
>
> public static void sign(PrivateKey pk, Certificate[] chain,
> String src, String dest, String provider,
> String reason, String location,
> String digestAlgorithm, boolean subfilter)
> throws GeneralSecurityException, IOException,
> DocumentException {
> // Creating the reader and the stamper
> PdfReader reader = new PdfReader(src);
> FileOutputStream os = new FileOutputStream(dest);
> PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0');
> // Creating the appearance
> PdfSignatureAppearance appearance =
> stamper.getSignatureAppearance();
> appearance.setReason(reason);
> appearance.setLocation(location);
> appearance.setVisibleSignature(new Rectangle(36, 748, 144, 780),
> 1, "sig");
> // Creating the signature
> PrivateKeySignature pks = new PrivateKeySignature(pk,
> digestAlgorithm, provider);
> MakeSignature.signDetached(appearance, pks, chain, null, null,
> null, provider, 0, subfilter);
>
> }
>
>
>
>
> /**
> * @param args
> */
> public static void main(String[] args) {
> String PASSWORD = "password";
> String SRC = "doc/test.pdf";
> String DEST = "doc/test_signed.pdf";
>
> try {
>
> SunPKCS11 pkcs11 = new SunPKCS11("pkcs11.cfg");
> Security.addProvider (pkcs11);
> KeyStore ks = KeyStore.getInstance("PKCS11");
>
> ks.load(null, PASSWORD.toCharArray());
>
> String alias = "885856b0-60b9-4727-9416-75c70810de4d";
>
> PrivateKey pk = (PrivateKey) ks.getKey(alias,
> PASSWORD.toCharArray());
> Certificate[] chain = ks.getCertificateChain(alias);
>
> sign(pk, chain, SRC, DEST, pkcs11.getName(), "Test 3",
> "Ghent", DigestAlgorithms.SHA1, MakeSignature.CADES);
> } catch(Exception e) {
> e.printStackTrace();
> }
> }
>
> }
>
>
Best regards,
Eric
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