Package org.bouncycastle.asn1.x509

Examples of org.bouncycastle.asn1.x509.DSAParameter

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    }

    JDKDSAPublicKey(
        SubjectPublicKeyInfo    info)
    {
        DSAParameter            params = new DSAParameter((ASN1Sequence)info.getAlgorithmId().getParameters());
        DERInteger              derY = null;

        try
        {
            derY = (DERInteger)info.getPublicKey();
        }
        catch (IOException e)
        {
            throw new IllegalArgumentException("invalid info structure in DSA public key");
        }

        this.y = derY.getValue();
        this.dsaSpec = new DSAParameterSpec(params.getP(), params.getQ(), params.getG());
    }
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        return "X.509";
    }

    public byte[] getEncoded()
    {
        SubjectPublicKeyInfo    info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa, new DSAParameter(dsaSpec.getP(), dsaSpec.getQ(), dsaSpec.getG()).getDERObject()), new DERInteger(y));

        return info.getDEREncoded();
    }
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    }

    JDKDSAPrivateKey(
        PrivateKeyInfo  info)
    {
        DSAParameter    params = new DSAParameter((ASN1Sequence)info.getAlgorithmId().getParameters());
        DERInteger      derX = (DERInteger)info.getPrivateKey();

        this.x = derX.getValue();
        this.dsaSpec = new DSAParameterSpec(params.getP(), params.getQ(), params.getG());
    }
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     *
     * @return a PKCS8 representation of the key.
     */
    public byte[] getEncoded()
    {
        PrivateKeyInfo          info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa, new DSAParameter(dsaSpec.getP(), dsaSpec.getQ(), dsaSpec.getG()).getDERObject()), new DERInteger(getX()));

        return info.getDEREncoded();
    }
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         */
        protected byte[] engineGetEncoded()
        {
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
            DEROutputStream         dOut = new DEROutputStream(bOut);
            DSAParameter            dsaP = new DSAParameter(currentSpec.getP(), currentSpec.getQ(), currentSpec.getG());

            try
            {
                dOut.writeObject(dsaP);
                dOut.close();
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        {
            ASN1InputStream        aIn = new ASN1InputStream(params);

            try
            {
                DSAParameter dsaP = new DSAParameter((ASN1Sequence)aIn.readObject());

                currentSpec = new DSAParameterSpec(dsaP.getP(), dsaP.getQ(), dsaP.getG());
            }
            catch (ClassCastException e)
            {
                throw new IOException("Not a valid DSA Parameter encoding.");
            }
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            }
            else if (o instanceof DSAPrivateKey)
            {
                type = "DSA PRIVATE KEY";
               
                DSAParameter        p = DSAParameter.getInstance(info.getAlgorithmId().getParameters());
                ASN1EncodableVector v = new ASN1EncodableVector();
               
                v.add(new DERInteger(0));
                v.add(new DERInteger(p.getP()));
                v.add(new DERInteger(p.getQ()));
                v.add(new DERInteger(p.getG()));
               
                BigInteger x = ((DSAPrivateKey)o).getX();
                BigInteger y = p.getG().modPow(x, p.getP());
               
                v.add(new DERInteger(y));
                v.add(new DERInteger(x));

                encoding = new DERSequence(v).getEncoded();
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        BufferedWriter out = makeBuffered(_out);
        PrivateKeyInfo info = new PrivateKeyInfo((ASN1Sequence) new ASN1InputStream(getEncoded(obj)).readObject());
        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        ASN1OutputStream aOut = new ASN1OutputStream(bOut);

        DSAParameter p = DSAParameter.getInstance(info.getAlgorithmId().getParameters());
        ASN1EncodableVector v = new ASN1EncodableVector();
        v.add(new DERInteger(0));
        v.add(new DERInteger(p.getP()));
        v.add(new DERInteger(p.getQ()));
        v.add(new DERInteger(p.getG()));

        BigInteger x = obj.getX();
        BigInteger y = p.getG().modPow(x, p.getP());

        v.add(new DERInteger(y));
        v.add(new DERInteger(x));

        aOut.writeObject(new DERSequence(v));
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            }
            else if (o instanceof DSAPrivateKey)
            {
                type = "DSA PRIVATE KEY";
               
                DSAParameter        p = DSAParameter.getInstance(info.getAlgorithmId().getParameters());
                ASN1EncodableVector v = new ASN1EncodableVector();
               
                v.add(new DERInteger(0));
                v.add(new DERInteger(p.getP()));
                v.add(new DERInteger(p.getQ()));
                v.add(new DERInteger(p.getG()));
               
                BigInteger x = ((DSAPrivateKey)o).getX();
                BigInteger y = p.getG().modPow(x, p.getP());
               
                v.add(new DERInteger(y));
                v.add(new DERInteger(x));

                encoding = new DERSequence(v).getEncoded();
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         *                   base INTEGER, -- g}
         * </pre>
         */
        protected byte[] engineGetEncoded()
        {
            DSAParameter dsaP = new DSAParameter(currentSpec.getP(), currentSpec.getQ(), currentSpec.getG());

            try
            {
                return dsaP.getEncoded(ASN1Encodable.DER);
            }
            catch (IOException e)
            {
                throw new RuntimeException("Error encoding DSAParameters");
            }
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Related Classes of org.bouncycastle.asn1.x509.DSAParameter

  • net.sf.libpdfsign.CRLDownloader
  • net.sf.libpdfsign.OCSPClient
  • org.apache.geronimo.crypto.jce.provider.JDKDSAPrivateKey
  • org.apache.geronimo.crypto.jce.provider.JDKDSAPublicKey
  • org.apache.geronimo.util.asn1.ASN1EncodableVector
  • org.apache.geronimo.util.asn1.DERInteger
  • org.apache.geronimo.util.asn1.DERSequence
  • org.apache.geronimo.util.jce.provider.JDKDSAPrivateKey
  • org.apache.geronimo.util.jce.provider.JDKDSAPublicKey
  • org.bouncycastle.asn1.ASN1Encodable
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