List of usage examples for com.itextpdf.text.pdf.security BouncyCastleDigest BouncyCastleDigest
BouncyCastleDigest
From source file:SigningProcess.java
public static String sign(String base64, HashMap map) { String base64string = null;//from www .j a v a2s . co m try { System.out.println("map :" + map); // Getting a set of the entries Set set = map.entrySet(); System.out.println("set :" + set); // Get an iterator Iterator it = set.iterator(); // Display elements while (it.hasNext()) { Entry me = (Entry) it.next(); String key = (String) me.getKey(); if ("privateKey".equalsIgnoreCase(key)) { privateKey = (PrivateKey) me.getValue(); } if ("certificateChain".equalsIgnoreCase(key)) { certificateChain = (X509Certificate[]) me.getValue(); } } OcspClient ocspClient = new OcspClientBouncyCastle(); TSAClient tsaClient = null; for (int i = 0; i < certificateChain.length; i++) { X509Certificate cert = (X509Certificate) certificateChain[i]; String tsaUrl = CertificateUtil.getTSAURL(cert); if (tsaUrl != null) { tsaClient = new TSAClientBouncyCastle(tsaUrl); break; } } List<CrlClient> crlList = new ArrayList<CrlClient>(); crlList.add(new CrlClientOnline(certificateChain)); String property = System.getProperty("java.io.tmpdir"); BASE64Decoder decoder = new BASE64Decoder(); byte[] FileByte = decoder.decodeBuffer(base64); writeByteArraysToFile(property + "_unsigned.pdf", FileByte); // Creating the reader and the stamper PdfReader reader = new PdfReader(property + "_unsigned.pdf"); FileOutputStream os = new FileOutputStream(property + "_signed.pdf"); PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0'); // Creating the appearance PdfSignatureAppearance appearance = stamper.getSignatureAppearance(); // appearance.setReason(reason); // appearance.setLocation(location); appearance.setAcro6Layers(false); appearance.setVisibleSignature(new Rectangle(36, 748, 144, 780), 1, "sig1"); // Creating the signature ExternalSignature pks = new PrivateKeySignature((PrivateKey) privateKey, DigestAlgorithms.SHA256, providerMSCAPI.getName()); ExternalDigest digest = new BouncyCastleDigest(); MakeSignature.signDetached(appearance, digest, pks, certificateChain, crlList, ocspClient, tsaClient, 0, MakeSignature.CryptoStandard.CMS); InputStream docStream = new FileInputStream(property + "_signed.pdf"); byte[] encodeBase64 = Base64.encodeBase64(IOUtils.toByteArray(docStream)); base64string = new String(encodeBase64); } catch (IOException ex) { System.out.println("Exception :" + ex.getLocalizedMessage()); } catch (DocumentException ex) { System.out.println("Exception :" + ex.getLocalizedMessage()); } catch (GeneralSecurityException ex) { System.out.println("Exception :" + ex.getLocalizedMessage()); } return base64string; }
From source file:com.isa.firma.FirmaPDFController.java
public ByteArrayOutputStream firmar(PDFFirma infoFirma, InputStream pdfbase64) throws AppletException { try {//from w w w. j a v a 2 s . c om System.out.println("Firma Controller::firmar"); PdfReader reader = new PdfReader(pdfbase64); ByteArrayOutputStream os = new ByteArrayOutputStream(); PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0', null, true); PdfSignatureAppearance appearance = stamper.getSignatureAppearance(); System.out.println("Pre definir apariencia..."); if (infoFirma.isApariencia()) { System.out.println("Insertando apriencia en documento..."); appearance.setSignatureGraphic(Image.getInstance(new URL(infoFirma.getRutaImagen()))); appearance.setRenderingMode(Utiles.getModoApariencia()); int numeroPagFirma = infoFirma.getHoja() == -1 ? reader.getNumberOfPages() : infoFirma.getHoja(); int cantidadFirmaActuales = reader.getAcroFields().getSignatureNames().size(); int[] coords = infoFirma.calcularCorrdenadasFirma(cantidadFirmaActuales, infoFirma.getAncho(), infoFirma.getLargo()); //llx, lly, urx, ury String v = Utiles.encodingString(infoFirma.getFirmante()); System.out.println("Post encoding: " + v); appearance.setLayer2Text(v); //appearance.setLayer2Text( infoFirma.getFirmante() ); appearance.setVisibleSignature(new Rectangle(coords[0], coords[1], coords[2], coords[3]), numeroPagFirma, "Id: " + IdGenerator.generate()); } ExternalSignature es = new PrivateKeySignature(infoFirma.getPk(), "SHA-256", infoFirma.getProvidername()); ExternalDigest digest = new BouncyCastleDigest(); MakeSignature.signDetached(appearance, digest, es, infoFirma.getChainCert(), null, null, null, 0, CryptoStandard.CMS); System.out.println("PDF Firmado correctamente."); return os; } catch (IOException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (DocumentException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (KeyStoreException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (UnrecoverableKeyException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (GeneralSecurityException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } }
From source file:com.isa.firma.pades.FirmaPDFController.java
public ByteArrayOutputStream firmar(PDFFirma infoFirma, InputStream pdfbase64) throws AppletException { try {//from w w w . ja v a 2 s. com PdfReader reader = new PdfReader(pdfbase64); ByteArrayOutputStream os = new ByteArrayOutputStream(); PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0', null, true); PdfSignatureAppearance appearance = stamper.getSignatureAppearance(); if (infoFirma.isApariencia()) { System.out.println("Definiendo apariencia..."); appearance.setRenderingMode(Utiles.getModoApariencia()); if (!Utiles.getModoApariencia().equals(PdfSignatureAppearance.RenderingMode.DESCRIPTION)) { appearance.setSignatureGraphic(Image.getInstance(new URL(infoFirma.getRutaImagen()))); } int numeroPagFirma = infoFirma.getHoja() == -1 ? reader.getNumberOfPages() : infoFirma.getHoja(); int cantidadFirmaActuales = reader.getAcroFields().getSignatureNames().size(); int[] coords = infoFirma.calcularCorrdenadasFirma(cantidadFirmaActuales, infoFirma.getAncho(), infoFirma.getLargo()); System.out.println("firmante: " + infoFirma.getFirmante()); System.out.println("serie: " + infoFirma.getNroSerie()); //llx, lly, urx, ury appearance.setLayer2Text(infoFirma.generarTextoEnFirma()); appearance.setVisibleSignature(new Rectangle(coords[0], coords[1], coords[2], coords[3]), numeroPagFirma, "Id: " + IdGenerator.generate()); } ExternalSignature es = new PrivateKeySignature(infoFirma.getPk(), "SHA-256", infoFirma.getProvidername()); ExternalDigest digest = new BouncyCastleDigest(); MakeSignature.signDetached(appearance, digest, es, infoFirma.getChainCert(), null, null, null, 0, CryptoStandard.CMS); System.out.println("PDF Firmado correctamente."); return os; } catch (IOException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (DocumentException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (KeyStoreException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (UnrecoverableKeyException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } catch (GeneralSecurityException ex) { Logger.getLogger(FirmaPDFController.class.getName()).log(Level.SEVERE, null, ex); throw new AppletException(UtilesMsg.ERROR_FIRMANDO_DOCUMENTO, null, ex.getCause()); } }
From source file:com.vectorprint.report.itext.style.stylers.DocumentSettings.java
License:Open Source License
/** * adds a visible signature of 200 / 100 at top left of the first page of the pdf with "verify origin" as reason, the * localhost name as location. Uses MakeSignature.signDetached(psa, as, pks, certificateChain, null, null, null, 0, * MakeSignature.CryptoStandard.CMS)// w w w . j a va 2s . c om * * @see #loadKeyStore(char[]) * @see #getKey(java.security.KeyStore, java.lang.String, char[]) } * @param psa * @throws KeyStoreException * @throws NoSuchAlgorithmException * @throws UnrecoverableKeyException * @throws VectorPrintException */ @Override public void configureVisualSignature(PdfSignatureAppearance psa) throws KeyStoreException, NoSuchAlgorithmException, UnrecoverableKeyException, VectorPrintException { psa.setReason("verify origin"); try { psa.setLocation(InetAddress.getLocalHost().getHostName()); } catch (UnknownHostException ex) { log.log(Level.WARNING, "unable to set location for pdf signature", ex); } char[] pw = getValue(KEYSTORE_PASSWORD, char[].class); char[] clone = pw.clone(); KeyStore ks = loadKeyStore(pw); PrivateKey key = getKey(ks, (String) ks.aliases().nextElement(), clone); Certificate[] certificateChain = ks.getCertificateChain((String) ks.aliases().nextElement()); PrivateKeySignature pks = new PrivateKeySignature(key, getValue(DIGESTPARAM, DIGESTALGORITHM.class).name(), "BC"); ExternalDigest as = new BouncyCastleDigest(); psa.setVisibleSignature(new Rectangle(0, getHeight() - 100, 200, getHeight()), 1, "signature"); try { MakeSignature.signDetached(psa, as, pks, certificateChain, null, null, null, 0, MakeSignature.CryptoStandard.CMS); } catch (IOException | DocumentException | GeneralSecurityException ex) { throw new VectorPrintException(ex); } }
From source file:de.sign.SignMain.java
License:Open Source License
public void sign() throws DocumentException, IOException, GeneralSecurityException { PdfReader reader = new PdfReader(this.orgFile); OutputStream os = new FileOutputStream(this.orgFile.replace(".pdf", "SIGN.pdf")); PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0'); // Create appearance PdfSignatureAppearance appearance = stamper.getSignatureAppearance(); Rectangle cropBox = reader.getCropBox(1); float width = 50; float height = 50; Rectangle rectangle = new Rectangle(cropBox.getRight(width) - 20, cropBox.getTop(height) - 20, cropBox.getRight() - 20, cropBox.getTop() - 20); appearance.setVisibleSignature(rectangle, 1, "sig"); appearance.setLocation(getHostname()); appearance.setReason("Evidence of document integrity"); appearance.setCertificationLevel(1); // 1 = CERTIFIED_NO_CHANGES_ALLOWED appearance.setAcro6Layers(false);//from w w w.j a v a2 s . co m appearance.setLayer2Text(""); //Sign Security.addProvider(new BouncyCastleProvider()); TSAClient tsc = new TSAClientBouncyCastle(this.tsa_URL); ExternalDigest digest = new BouncyCastleDigest(); ExternalSignature signature = new PrivateKeySignature(getPrivateKey(), "SHA-1", "BC"); MakeSignature.signDetached(appearance, digest, signature, getCertificateChain(), null, null, tsc, 0, CryptoStandard.CMS); }
From source file:EplanPrinter.PDFPrint.java
License:Open Source License
public String insertSignature(String src, String dest, String Keystore, String name, String password, int masterHeight, int masterWidth, int pageNum) throws GeneralSecurityException, IOException, DocumentException { float[] scalar = scale(1, 1, 120, 32, masterHeight, masterWidth, pageNum); float[] trans = translate(1, 1, r[pageNum - 1].getHeight(), r[pageNum - 1].getWidth(), masterHeight, masterWidth, pageNum);/*from w w w .j a va2 s . co m*/ float[] f = commentTrans(1, 1, masterHeight, masterWidth, pageNum); float shift = 0; float pageChunk = r[pageNum - 1].getHeight() / 10; shift = r[pageNum - 1].getHeight() / 100; scalar[1] = (int) (pageChunk); scalar[0] = (int) (120 * pageChunk) / 32; trans[0] = (int) (0 + (pageChunk * widthScalar)); trans[1] = (int) (r[pageNum - 1].getHeight() - (pageChunk * heightScalar) - (shift * (heightScalar + 2))); heightScalar = heightScalar + 1; if (heightScalar == 8) { heightScalar = 0; widthScalar = widthScalar + 2; } /* Addition. ftorres - 7/22/2015 - Added to account for rotated pages * with the origin (0,0) not set to the bottom-left of the page. [1400] */ trans = translateRotation(trans[0], trans[1], pageNum); Rectangle cropBox = pds.getReader().getCropBox(1); Rectangle rectangle = new Rectangle(trans[0] + shift, trans[1] - scalar[1], trans[0] + shift + 120, trans[1] - scalar[1] + 32); BouncyCastleProvider provider = new BouncyCastleProvider(); Security.addProvider(provider); KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType()); ks.load(new FileInputStream(Keystore), password.toCharArray()); String alias = (String) ks.aliases().nextElement(); PrivateKey pk = (PrivateKey) ks.getKey(alias, password.toCharArray()); Certificate[] chain = ks.getCertificateChain(alias); // 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.setVisibleSignature(rectangle, 1, name); // Creating the signature ExternalSignature pks = new PrivateKeySignature(pk, "SHA-256", "BC"); ExternalDigest digest = new BouncyCastleDigest(); MakeSignature.signDetached(appearance, digest, pks, chain, null, null, null, 0, CryptoStandard.CMS); return ""; }
From source file:org.opencps.pki.PdfSigner.java
License:Open Source License
/** * Constructor/*from w w w .j av a 2 s .com*/ * * @param filePath The path of pdf document * @param cert The certificate of user * @param tempFilePath Temporary Pdf document file path after generate hash key * @param signedFilePath Signed Pdf document file path * @param isVisible Signature is visible */ public PdfSigner(String filePath, X509Certificate cert, String tempFilePath, String signedFilePath, boolean isVisible) { super(filePath, cert, tempFilePath, signedFilePath); this.isVisible = isVisible; signDate = Calendar.getInstance(); digest = new BouncyCastleDigest(); }
From source file:org.roda.common.certification.PDFSignatureUtils.java
public static Path runDigitalSignatureSign(Path input, String keystore, String alias, String password, String reason, String location, String contact) throws IOException, GeneralSecurityException, DocumentException { Security.addProvider(new BouncyCastleProvider()); Path signedPDF = Files.createTempFile("signed", ".pdf"); KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType()); InputStream is = new FileInputStream(keystore); ks.load(is, password.toCharArray()); PrivateKey pk = (PrivateKey) ks.getKey(alias, password.toCharArray()); Certificate[] chain = ks.getCertificateChain(alias); IOUtils.closeQuietly(is);/*from w w w. jav a 2 s . co m*/ PdfReader reader = new PdfReader(input.toString()); FileOutputStream os = new FileOutputStream(signedPDF.toFile()); PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0'); PdfSignatureAppearance appearance = stamper.getSignatureAppearance(); appearance.setReason(reason); appearance.setLocation(location); appearance.setContact(contact); appearance.setVisibleSignature(new Rectangle(36, 748, 144, 780), 1, "RODASignature"); ExternalDigest digest = new BouncyCastleDigest(); ExternalSignature signature = new PrivateKeySignature(pk, DigestAlgorithms.SHA256, "BC"); MakeSignature.signDetached(appearance, digest, signature, chain, null, null, null, 0, null); IOUtils.closeQuietly(os); reader.close(); return signedPDF; }
From source file:org.roda.core.plugins.plugins.characterization.PDFSignatureUtils.java
public static Path runDigitalSignatureSign(Path input, String keystore, String alias, String password, String reason, String location, String contact) throws IOException, GeneralSecurityException, DocumentException { Security.addProvider(new BouncyCastleProvider()); Path signedPDF = Files.createTempFile("signed", ".pdf"); KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType()); try (InputStream is = new FileInputStream(keystore)) { ks.load(is, password.toCharArray()); PrivateKey pk = (PrivateKey) ks.getKey(alias, password.toCharArray()); Certificate[] chain = ks.getCertificateChain(alias); try (FileOutputStream os = new FileOutputStream(signedPDF.toFile())) { PdfReader reader = new PdfReader(input.toString()); PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0'); PdfSignatureAppearance appearance = stamper.getSignatureAppearance(); appearance.setReason(reason); appearance.setLocation(location); appearance.setContact(contact); appearance.setVisibleSignature(new Rectangle(36, 748, 144, 780), 1, "RODASignature"); ExternalDigest digest = new BouncyCastleDigest(); ExternalSignature signature = new PrivateKeySignature(pk, DigestAlgorithms.SHA256, "BC"); MakeSignature.signDetached(appearance, digest, signature, chain, null, null, null, 0, null); reader.close();//from w w w. j a va 2s . c om } } return signedPDF; }
From source file:org.sinekartads.core.pdf.PDFTools.java
License:Open Source License
public static FinalizedSignature<SignatureType.SignCategory, SignDisposition.PDF, SecurityLevel.VerifyResult, PDFSignatureInfo> sign( SignedSignature<SignatureType.SignCategory, SignDisposition.PDF, SecurityLevel.VerifyResult, PDFSignatureInfo> signedSignature, // X509Certificate certificate, InputStream is, OutputStream os) throws SignatureException { //// signAndMark(doc, certificate, is, os, null, null, null, null, null); // signAndMark(signatureInfo, certificate, is, os, null, null, null); // }/*from w w w . j ava 2 s .c o m*/ // // public static void signAndMark(PDFSignatureInfo doc, // X509Certificate certificate, InputStream is, OutputStream os, // String tsaUrl, String tsaUser, String tsaPassword) { //// signAndMark(doc, certificate, is, os, tsaUrl, tsaUser, tsaPassword, null, null); //// } //// //// public static void signAndMark(DigitalSignatureDocument doc, //// X509Certificate certificate, InputStream is, OutputStream os, //// String tsaUrl, String tsaUser, String tsaPassword, Collection<CrlClient> crlList, OcspClient ocspClient) { try { PDFSignatureInfo signature = (PDFSignatureInfo) signedSignature; TSAClient tsaClient = null; TsRequestInfo tsRequest = signature.getTsRequest(); if (tsRequest != null && StringUtils.isNotBlank(tsRequest.getTsUrl())) { tsaClient = new TSAClientBouncyCastle(tsRequest.getTsUrl(), tsRequest.getTsUsername(), tsRequest.getTsPassword()); } // if (tsaUrl!=null) { // tsaClient = new TSAClientBouncyCastle(tsaUrl, tsaUser, tsaPassword); // } int estimatedSize = 0; CryptoStandard sigtype = CryptoStandard.CMS; // creo il reader del pdf PdfReader reader = new PdfReader(is); // creo lo stamper (se il pdf e' gia' firmato, controfirma, // altrimenti firma PdfStamper stamper = null; if (isPdfSigned(reader)) { if (tracer.isDebugEnabled()) tracer.debug("document already signed, i will apply another sign"); stamper = PdfStamper.createSignature(reader, os, '\0', null, true); } else { if (tracer.isDebugEnabled()) tracer.debug("document never signed before, this is first"); stamper = PdfStamper.createSignature(reader, os, '\0'); } // questo e' il certificato su cui lavorare Certificate[] chain = signature.getRawX509Certificates(); // Certificate[] chain = new Certificate[1]; // chain[0] = certificate; // creo la signature apparence PdfSignatureAppearance sap = stamper.getSignatureAppearance(); ExternalDigest externalDigest = new BouncyCastleDigest(); // inizio codice copiato da MakeSignature // Collection<byte[]> crlBytes = null; // int i = 0; // while (crlBytes == null && i < chain.length) // crlBytes = MakeSignature.processCrl(chain[i++], crlList); if (estimatedSize == 0) { estimatedSize = 8192; // if (crlBytes != null) { // for (byte[] element : crlBytes) { // estimatedSize += element.length + 10; // } // } // if (ocspClient != null) estimatedSize += 4192; // if (tsaClient != null) estimatedSize += 4192; } sap.setCertificate(chain[0]); sap.setReason(signature.getReason()); sap.setLocation(signature.getLocation()); Calendar cal = Calendar.getInstance(); cal.setTime(signature.getSigningTime()); sap.setSignDate(cal); sap.getStamper().setUnicodeModDate(signature.getUnicodeModDate()); sap.getStamper().setFileId(signature.getFileId()); PdfSignature dic = new PdfSignature(PdfName.ADOBE_PPKLITE, PdfName.ADBE_PKCS7_DETACHED); dic.setReason(sap.getReason()); dic.setLocation(sap.getLocation()); dic.setContact(sap.getContact()); dic.setDate(new PdfDate(sap.getSignDate())); // time-stamp will over-rule this sap.setCryptoDictionary(dic); HashMap<PdfName, Integer> exc = new HashMap<PdfName, Integer>(); exc.put(PdfName.CONTENTS, new Integer(estimatedSize * 2 + 2)); sap.preClose(exc); String hashAlgorithm = signature.getDigestAlgorithm().getName(); PdfPKCS7 sgn = new PdfPKCS7(null, chain, hashAlgorithm, BouncyCastleProvider.PROVIDER_NAME, externalDigest, false); InputStream data = sap.getRangeStream(); byte hash[] = DigestAlgorithms.digest(data, externalDigest.getMessageDigest(hashAlgorithm)); // byte[] ocsp = null; // if (chain.length >= 2 && ocspClient != null) { // ocsp = ocspClient.getEncoded((X509Certificate) chain[0], (X509Certificate) chain[1], null); // } sgn.setExternalDigest(signature.getDigitalSignature(), null, "RSA"); // byte[] encodedSig = sgn.getEncodedPKCS7(hash, _getSignDate(doc.getSignDate()), tsaClient, ocsp, crlBytes, sigtype); byte[] encodedSig = sgn.getEncodedPKCS7(hash, cal, tsaClient, null, null, sigtype); if (estimatedSize + 2 < encodedSig.length) throw new IOException("Not enough space"); ASN1EncodableVector extraDataVectorEncoding = new ASN1EncodableVector(); // extraDataVectorEncoding.add(new DERObjectIdentifier("1.2.840.114283")); // encoding attribute extraDataVectorEncoding.add(new DERGeneralString("115.105.110.101.107.97.114.116.97")); // applico la firma al PDF byte[] extraDataVectorEncodingBytes = new DERSequence(new DERSequence(extraDataVectorEncoding)) .getEncoded(); byte[] paddedSig = new byte[estimatedSize]; System.arraycopy(encodedSig, 0, paddedSig, 0, encodedSig.length); System.arraycopy(extraDataVectorEncodingBytes, 0, paddedSig, encodedSig.length, extraDataVectorEncodingBytes.length); // encoding attribute PdfDictionary dic2 = new PdfDictionary(); dic2.put(PdfName.CONTENTS, new PdfString(paddedSig).setHexWriting(true)); sap.close(dic2); // this should be already done, but ... // closing streams try { is.close(); } catch (IOException e) { tracer.error("error on input stream", e); } try { os.flush(); } catch (IOException e) { tracer.error("error on output stream", e); } try { os.close(); } catch (IOException e) { tracer.error("error on output stream", e); } return signature.finalizeSignature(); // } catch (MarkFailedException e) { // throw e; } catch (Exception e) { tracer.error("Unable to sign PDF.", e); throw new SignatureException("Unable to sign PDF.", e); } }