Example usage for com.itextpdf.text.pdf.security MakeSignature signDetached

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf.security MakeSignature signDetached.

Prototype

public static void signDetached(PdfSignatureAppearance sap, ExternalDigest externalDigest,
        ExternalSignature externalSignature, Certificate[] chain, Collection<CrlClient> crlList,
        OcspClient ocspClient, TSAClient tsaClient, int estimatedSize, CryptoStandard sigtype)
        throws IOException, DocumentException, GeneralSecurityException 

Source Link

Document

Signs the document using the detached mode, CMS or CAdES equivalent.

Usage

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);/*ww w . j a  v  a2s.c o 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;
}

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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();// w  w  w  . j  a v a2 s  . c  om
        }
    }

    return signedPDF;
}

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From source file:signpdfitext5.SignPdfItext5.java

public static void signPdf() throws IOException, DocumentException, KeyStoreException, NoSuchAlgorithmException,
        CertificateException, UnrecoverableKeyException, GeneralSecurityException {

    //Se agrega bouncyCastle al provider de java, si no se realiza, arroja un error
    Provider p = new BouncyCastleProvider();
    Security.addProvider(p);/*w  w w.  ja  va 2s . co m*/

    //Se instancia un keystore de tipo pkcs12 para leer el contenedor p12 o pfx
    KeyStore ks = KeyStore.getInstance("pkcs12");
    //Se entrega la ruta y la clave del p12 o pfx
    ks.load(new FileInputStream(fContenedorp12.getAbsolutePath()), Contenedorp12clave.toCharArray());

    //Se obtiene el nombre del certificado
    String alias = (String) ks.aliases().nextElement();
    //Se obtiene la llave privada
    PrivateKey pk = (PrivateKey) ks.getKey(alias, Contenedorp12clave.toCharArray());
    //Se obtiene la cadena de certificados en base al nombre del certificado
    Certificate[] chain = ks.getCertificateChain(alias);
    //Se indica el origen del pdf a firmar
    PdfReader reader = new PdfReader(fpdfOrigen.getAbsolutePath());
    //Se indica el destino del pdf firmado
    PdfStamper stamper = PdfStamper.createSignature(reader, new FileOutputStream(fpdfDestino.getAbsolutePath()),
            '\0');
    //Se indican alguno detalles de la forma en que se firmara
    PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
    appearance.setReason("It's personal.");
    appearance.setLocation("Foobar");

    // Se entrega la llave privada del certificado, el algoritmo de firma y el provider usado (bouncycastle)
    ExternalSignature es = new PrivateKeySignature(pk, "SHA-256", "BC");
    ExternalDigest digest = new BouncyCastleDigest();

    //Se genera la firma y se almacena el pdf como se indico en las lineas anteriores
    MakeSignature.signDetached(appearance, digest, es, chain, null, null, null, 0, CryptoStandard.CMS);

    //Se cierran las instancias para liberar espacio
    stamper.close();
    reader.close();
}

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