Examples of codec.asn1.ASN1Opaque

codec.asn1.ASN1Opaque
Represents an opaque type. An opaque type merely decodes the tag and tag class and stores the contents octets in an OCTET STRING. The opaque type is represented in ASN.1 as [UNIVERSAL x] IMPLICIT OCTET STRING where x is the tag.
The opaque type is comparable to an {@link ASN1OpenType open type} in that it matches any type (just like thedeprecated ANY type) on decoding. The encoding can be reconstructed easily. This type is used whenever decoding of a structure should be deferred to a later point in time. For instance an AlgorithmIdentifier implementation can use an opaque type in order to decode algorithm parameters. The encoding of the algorithm parameters is then done by JCA/JCE classes later on.
One drawback of the opaque type is that special handling by the encoders and decoders is rquired to make it work properly. The main problem is that the opaque type does not store whether the underlying type is constructed or primitive. This decision must be made by the encoder.
Due to this limitation the opaque type can be used only for decoding types of class UNIVERSAL. @author Volker Roth @author Stefan Endler @version "$Id: ASN1Opaque.java,v 1.3 2007/08/11 18:21:50 sendler Exp $"

  super(3);


  mac_ = new DigestInfo();
  add(mac_);


  macSalt_ = new ASN1OctetString();
  add(macSalt_);


  iter_ = new ASN1Integer();
  iter_.setOptional(true);
  add(iter_);

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  super(3);


  mac_ = digest;
  add(mac_);


  macSalt_ = new ASN1OctetString(salt);
  add(macSalt_);


  iter_ = new ASN1Integer(it);
  if (it == 1) // default value?
      iter_.setOptional(true);

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    public CertBag(java.security.cert.X509Certificate cert)
      throws java.security.cert.CertificateEncodingException {
  super(2);
  certId_ = new ASN1ObjectIdentifier("1.2.840.113549.1.9.22.1");
  add(certId_);
  x509Cert_ = new ASN1OctetString(cert.getEncoded());
  certValue_ = new ASN1TaggedType(0, x509Cert_, true);
  add(certValue_);
    }

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     */
    public AlgorithmIdentifier() {
  super(2);


  algorithm_ = new ASN1ObjectIdentifier();
  parameters_ = new ASN1Opaque();
  parameters_.setOptional(true);
  add(algorithm_);
  add(parameters_);
    }

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      algorithm_ = new ASN1ObjectIdentifier(oid);
  } catch (IllegalArgumentException e) {
      throw new NoSuchAlgorithmException("Bad OID alias for algorithm "
        + algorithm);
  }
  parameters_ = new ASN1Opaque(ASN1.TAG_NULL, ASN1.CLASS_UNIVERSAL,
    new byte[0]);


  add(algorithm_);
  add(parameters_);
    }

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  if (b == null) {
      /*
       * Usually, we'd define the following type as OPTIONAl. However, in
       * case no parameters are given a NULL is set instead.
       */
      parameters_ = new ASN1Opaque(ASN1.TAG_NULL, ASN1.CLASS_UNIVERSAL,
        new byte[0]);
  } else
      parameters_ = new ASN1Opaque(b);


  add(algorithm_);
  add(parameters_);
    }

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        "Bad OID alias for algorithm " + params.getAlgorithm());
  }


  try {
      if (params == null) {
    parameters_ = new ASN1Opaque(ASN1.TAG_NULL,
      ASN1.CLASS_UNIVERSAL, new byte[0]);
      } else {
    parameters_ = new ASN1Opaque(params.getEncoded());
      }
  } catch (IOException e) {
      throw new InvalidAlgorithmParameterException(
        "Error during parameter encoding!");
  } catch (ASN1Exception e) {

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  algorithm_ = (ASN1ObjectIdentifier) oid.clone();


  try {
      if (params == null || (params instanceof ASN1Null))
    parameters_ = new ASN1Opaque(ASN1.TAG_NULL,
      ASN1.CLASS_UNIVERSAL, new byte[0]);
      else {
    bos = new ByteArrayOutputStream();
    enc = new DEREncoder(bos);
    params.encode(enc);


    parameters_ = new ASN1Opaque(bos.toByteArray());
    bos.close();
      }
      add(algorithm_);
      add(parameters_);
  } catch (IOException e) {

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     */
    public void decode(Decoder dec) throws ASN1Exception, IOException {
  super.decode(dec);


  int i;
  ASN1Opaque o;
  X509Certificate cert;


  if (factory_ == null) {
      try {
    factory_ = CertificateFactory.getInstance("X.509");
      } catch (CertificateException e1) {
    try {
        factory_ = CertificateFactory.getInstance("X509");
    } catch (CertificateException e2) {
        throw new ASN1Exception(e2.getMessage());
    }
      }
  }
  cache_ = null;


  try {
      for (i = size() - 1; i >= 0; i--) {
    o = (ASN1Opaque) get(i);
    cert = (X509Certificate) factory_
      .generateCertificate(new ByteArrayInputStream(o
        .getEncoded()));


    set(i, cert);
      }
  } catch (CertificateException e) {

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      ListIterator i;


      for (i = listIterator(cache_.size()); i.hasNext();) {
    try {
        cert = (X509Certificate) i.next();
        cache_.add(new ASN1Opaque(cert.getEncoded()));
    } catch (CertificateEncodingException e) {
        throw new ASN1Exception(e.getMessage());
    }
      }
  }

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