Examples of java.security.cert.X509Certificate

java.security.cert.X509Certificate

etf.org/rfc/rfc2459.txt"> http://www.ietf.org/rfc/rfc2459.txt .

The ASN.1 definition of tbsCertificate is:

 TBSCertificate  ::=  SEQUENCE  { version         [0]  EXPLICIT Version DEFAULT v1, serialNumber         CertificateSerialNumber, signature            AlgorithmIdentifier, issuer               Name, validity             Validity, subject              Name, subjectPublicKeyInfo SubjectPublicKeyInfo, issuerUniqueID  [1]  IMPLICIT UniqueIdentifier OPTIONAL, -- If present, version must be v2 or v3 subjectUniqueID [2]  IMPLICIT UniqueIdentifier OPTIONAL, -- If present, version must be v2 or v3 extensions      [3]  EXPLICIT Extensions OPTIONAL -- If present, version must be v3 }

Certificates are instantiated using a certificate factory. The following is an example of how to instantiate an X.509 certificate:

  InputStream inStream = new FileInputStream("fileName-of-cert"); CertificateFactory cf = CertificateFactory.getInstance("X.509"); X509Certificate cert = (X509Certificate)cf.generateCertificate(inStream); inStream.close();

@author Hemma Prafullchandra @version 1.40 @see Certificate @see CertificateFactory @see X509Extension

        recip1.setPermission(accessPermission);
        recip2.setPermission(accessPermission2);
        
        InputStream inStream = new FileInputStream(publicCert1);        
        Assert.assertNotNull(cf);
        X509Certificate certificate1 = (X509Certificate)cf.generateCertificate(inStream);
        inStream.close();        
        
        InputStream inStream2 = new FileInputStream(publicCert2);        
        Assert.assertNotNull(cf);
        X509Certificate certificate2 = (X509Certificate)cf.generateCertificate(inStream2);
        inStream.close();        
        
        recip1.setX509(certificate1);
        recip2.setX509(certificate2);

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    private void protect(PDDocument doc, String certPath) throws Exception 
    {
        InputStream inStream = new FileInputStream(certPath);
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        Assert.assertNotNull(cf);
        X509Certificate certificate = (X509Certificate)cf.generateCertificate(inStream);
        Assert.assertNotNull(certificate);
        inStream.close();        
        
        PublicKeyProtectionPolicy ppp = new PublicKeyProtectionPolicy();                
        PublicKeyRecipient recip = new PublicKeyRecipient();

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                        recip.setPermission(ap);
                        
                        
                        CertificateFactory cf = CertificateFactory.getInstance("X.509");                            
                        InputStream inStream = new FileInputStream(certFile);
                        X509Certificate certificate = (X509Certificate)cf.generateCertificate(inStream);
                        inStream.close();
                        
                        recip.setX509(certificate);
                        
                        ppp.addRecipient(recip);

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      return;


    try {
      CertificateFactory cf = CertificateFactory.getInstance("X.509");
      InputStream is = _clientCert.createInputStream();
      X509Certificate cert = (X509Certificate) cf.generateCertificate(is);
      is.close();


      request.setAttribute("javax.servlet.request.X509Certificate",
                           new X509Certificate[]{cert});
      request.setAttribute(com.caucho.security.AbstractLogin.LOGIN_USER_NAME,

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    throws java.security.cert.CertificateException
  {
    TempBuffer tb = TempBuffer.allocate();
    byte []buffer = tb.getBuffer();
    int len = getClientCertificate(_fd, buffer, 0, buffer.length);
    X509Certificate cert = null;


    if (len > 0 && len < buffer.length) {
      try {
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        InputStream is = new ByteArrayInputStream(buffer, 0, len);

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      keypair.generate(keysize);


      PrivateKey privKey = keypair.getPrivateKey();
      X500Name x500name = new X500Name("CN=" + name);
      
      X509Certificate cert
        = keypair.getSelfCertificate(x500name, days * 24 * 3600);


      return new SelfSignedCert(cert, privKey);
    } catch (Exception e) {
      log.log(Level.FINE, e.toString(), e);

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                this.getClass().getClassLoader().getResource("transmitter.jks").openStream(),
                "default".toCharArray()
        );
        Key key = keyStore.getKey("transmitter", "default".toCharArray());
        properties.setSignatureKey(key);
        X509Certificate cert = (X509Certificate)keyStore.getCertificate("transmitter");
        properties.setSignatureCerts(new X509Certificate[]{cert});
        
        String digestAlgorithm = "http://www.w3.org/2000/09/xmldsig#sha1";


        SecurePart securePart = new SecurePart(

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                this.getClass().getClassLoader().getResource("transmitter.jks").openStream(),
                "default".toCharArray()
        );
        Key key = keyStore.getKey("transmitter", "default".toCharArray());
        properties.setSignatureKey(key);
        X509Certificate cert = (X509Certificate)keyStore.getCertificate("transmitter");
        properties.setSignatureCerts(new X509Certificate[]{cert});
        
        String digestAlgorithm = "http://www.w3.org/2001/04/xmldsig-more#sha224";


        SecurePart securePart = new SecurePart(

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                this.getClass().getClassLoader().getResource("transmitter.jks").openStream(),
                "default".toCharArray()
        );
        Key key = keyStore.getKey("transmitter", "default".toCharArray());
        properties.setSignatureKey(key);
        X509Certificate cert = (X509Certificate)keyStore.getCertificate("transmitter");
        properties.setSignatureCerts(new X509Certificate[]{cert});
        
        String digestAlgorithm = "http://www.w3.org/2001/04/xmlenc#sha256";


        SecurePart securePart = new SecurePart(

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                this.getClass().getClassLoader().getResource("transmitter.jks").openStream(),
                "default".toCharArray()
        );
        Key key = keyStore.getKey("transmitter", "default".toCharArray());
        properties.setSignatureKey(key);
        X509Certificate cert = (X509Certificate)keyStore.getCertificate("transmitter");
        properties.setSignatureCerts(new X509Certificate[]{cert});
        
        String digestAlgorithm = "http://www.w3.org/2001/04/xmldsig-more#sha384";


        SecurePart securePart = new SecurePart(

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