Examples of sun.security.util.DerOutputStream

sun.security.util.DerOutputStream
Output stream marshaling DER-encoded data. This is eventually provided in the form of a byte array; there is no advance limit on the size of that byte array.
At this time, this class supports only a subset of the types of DER data encodings which are defined. That subset is sufficient for generating most X.509 certificates. @author David Brownell @author Amit Kapoor @author Hemma Prafullchandra

     * @param out the output stream.
     * @exception IOException on encoding error.
     */
    public void encode(DerOutputStream out) throws IOException {


        DerOutputStream theChoice = new DerOutputStream();


        if (fullName != null) {
            fullName.encode(theChoice);
            out.writeImplicit(
                DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_FULL_NAME),

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     *
     * @param out the DerOutputStream to write the extension to.
     * @exception IOException on encoding errors.
     */
    public void encode(OutputStream out) throws IOException {
        DerOutputStream tmp = new DerOutputStream();
        if (this.extensionValue == null) {
            this.extensionId = PKIXExtensions.AuthInfoAccess_Id;
            this.critical = false;
            encodeThis();
        }
        super.encode(tmp);
        out.write(tmp.toByteArray());
    }

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     // Encode this extension value
    private void encodeThis() throws IOException {
        if (accessDescriptions.isEmpty()) {
            this.extensionValue = null;
        } else {
            DerOutputStream ads = new DerOutputStream();
            for (AccessDescription accessDescription : accessDescriptions) {
                accessDescription.encode(ads);
            }
            DerOutputStream seq = new DerOutputStream();
            seq.write(DerValue.tag_Sequence, ads);
            this.extensionValue = seq.toByteArray();
        }
    }

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     *
     * @param out the DerOutputStream to write the extension to.
     * @exception IOException on encoding errors.
     */
    public void encode(DerOutputStream out) throws IOException {
        DerOutputStream tmp = new DerOutputStream();
        policyIdentifier.encode(tmp);
        if (!policyQualifiers.isEmpty()) {
            DerOutputStream tmp2 = new DerOutputStream();
            for (PolicyQualifierInfo pq : policyQualifiers) {
                tmp2.write(pq.getEncoded());
            }
            tmp.write(DerValue.tag_Sequence, tmp2);
        }
        out.write(DerValue.tag_Sequence, tmp);
    }

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    public static void main(String[] args) throws Exception {


        boolean[] bb = (new boolean[] {true, false, true, false, false, false});
        GeneralNames gns = new GeneralNames();
        gns.add(new GeneralName(new DNSName("dns")));
        DerOutputStream out;


        // length should be 5 since only {T,F,T} should be encoded
        KeyUsageExtension x1 = new KeyUsageExtension(bb);
        check(new DerValue(x1.getExtensionValue()).getUnalignedBitString().length(), 3);


        NetscapeCertTypeExtension x2 = new NetscapeCertTypeExtension(bb);
        check(new DerValue(x2.getExtensionValue()).getUnalignedBitString().length(), 3);


        ReasonFlags r = new ReasonFlags(bb);
        out = new DerOutputStream();
        r.encode(out);
        check(new DerValue(out.toByteArray()).getUnalignedBitString().length(), 3);


        // Read sun.security.x509.DistributionPoint for ASN.1 definition
        DistributionPoint dp = new DistributionPoint(gns, bb, gns);
        out = new DerOutputStream();
        dp.encode(out);
        DerValue v = new DerValue(out.toByteArray());
        // skip distributionPoint
        v.data.getDerValue();
        // read reasons
        DerValue v2 = v.data.getDerValue();
        // reset to BitString since it's context-specfic[1] encoded

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    public byte[] getEncoded()
        throws IOException
    {
        if (this.encoded != null) return this.encoded.clone();


        DerOutputStream out = new DerOutputStream();
        DerOutputStream tmp = new DerOutputStream();


        // encode encryption algorithm
        algid.encode(tmp);


        // encode encrypted data
        tmp.putOctetString(encryptedData);


        // wrap everything into a SEQUENCE
        out.write(DerValue.tag_Sequence, tmp);
        this.encoded = out.toByteArray();

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    public byte[] getEncoded() throws NoSuchAlgorithmException, IOException
    {
        if (this.encoded != null)
            return this.encoded.clone();


        DerOutputStream out = new DerOutputStream();
        DerOutputStream tmp = new DerOutputStream();


        DerOutputStream tmp2 = new DerOutputStream();
        // encode encryption algorithm
        AlgorithmId algid = AlgorithmId.get(digestAlgorithmName);
        algid.encode(tmp2);


        // encode digest data
        tmp2.putOctetString(digest);


        tmp.write(DerValue.tag_Sequence, tmp2);


        // encode salt
        tmp.putOctetString(macSalt);

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    private IdentityToken createIdToken(java.lang.Object cred, Class cls, ORB orb)
        throws Exception {


        IdentityToken idtok   = null;


        DerOutputStream dos = new DerOutputStream();
        DerValue[]  derval  = null ; // DER encoding buffer
        //byte[] cdrval ;            // CDR encoding buffer
        Any  any = orb.create_any();
        idtok = new IdentityToken();
  
        if (X500Name.class.isAssignableFrom(cls)) {
                _logger.log(Level.FINE,"Constructing an X500 DN Identity Token");
            X500Name credname = (X500Name) cred;
            credname.encode(dos);  // ASN.1 encoding
            X501DistinguishedNameHelper.insert(any, dos.toByteArray());


            /* IdentityToken with CDR encoded X501 name */
            idtok.dn(codec.encode_value(any)); 
        } else if (X509CertificateCredential.class.isAssignableFrom(cls)) {
                _logger.log(Level.FINE,"Constructing an X509 Certificate Chain Identity Token");
      /* create a DER encoding */
            X509CertificateCredential certcred = (X509CertificateCredential) cred;
            X509Certificate[] certchain = certcred.getX509CertificateChain();
                _logger.log(Level.FINE,"Certchain length = " + certchain.length);
            derval = new DerValue[certchain.length];
            for (int i = 0; i < certchain.length ; i++)
                derval[i] = new DerValue(certchain[i].getEncoded());
            dos.putSequence(derval);
            X509CertificateChainHelper.insert(any, dos.toByteArray());


            /* IdentityToken with CDR encoded certificate chain */
            idtok.certificate_chain(codec.encode_value(any));
        } else if (AnonCredential.class.isAssignableFrom(cls)) {
                _logger.log(Level.FINE,"Constructing an Anonymous Identity Token");

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    private IdentityToken createIdToken(java.lang.Object cred, Class cls, ORB orb)
        throws Exception {


        IdentityToken idtok   = null;


        DerOutputStream dos = new DerOutputStream();
        DerValue[]  derval  = null ; // DER encoding buffer
        //byte[] cdrval ;            // CDR encoding buffer
        Any  any = orb.create_any();
        idtok = new IdentityToken();
  
        if (X500Name.class.isAssignableFrom(cls)) {
                _logger.log(Level.FINE,"Constructing an X500 DN Identity Token");
            X500Name credname = (X500Name) cred;
            credname.encode(dos);  // ASN.1 encoding
            X501DistinguishedNameHelper.insert(any, dos.toByteArray());


            /* IdentityToken with CDR encoded X501 name */
            idtok.dn(codec.encode_value(any)); 
        } else if (X509CertificateCredential.class.isAssignableFrom(cls)) {
                _logger.log(Level.FINE,"Constructing an X509 Certificate Chain Identity Token");
      /* create a DER encoding */
            X509CertificateCredential certcred = (X509CertificateCredential) cred;
            X509Certificate[] certchain = certcred.getX509CertificateChain();
                _logger.log(Level.FINE,"Certchain length = " + certchain.length);
            derval = new DerValue[certchain.length];
            for (int i = 0; i < certchain.length ; i++)
                derval[i] = new DerValue(certchain[i].getEncoded());
            dos.putSequence(derval);
            X509CertificateChainHelper.insert(any, dos.toByteArray());


            /* IdentityToken with CDR encoded certificate chain */
            idtok.certificate_chain(codec.encode_value(any));
        } else if (AnonCredential.class.isAssignableFrom(cls)) {
                _logger.log(Level.FINE,"Constructing an Anonymous Identity Token");

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        out.write(tag);
        out.write(derEncoding, 1, derEncoding.length -1);
    }


    private byte[] generateDerEncoding() throws IOException {
        DerOutputStream out = new DerOutputStream();
        Object[] attribVals = attributes.values().toArray();


        out.putOrderedSetOf(DerValue.tag_SetOf,
                            castToDerEncoder(attribVals));
        return out.toByteArray();
    }

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