Package org.bouncycastle.asn1.pkcs

Examples of org.bouncycastle.asn1.pkcs.DHParameter


     *
     * @return a PKCS8 representation of the key.
     */
    public byte[] getEncoded()
    {
        PrivateKeyInfo          info = new PrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.dhKeyAgreement, new DHParameter(dhSpec.getP(), dhSpec.getG(), dhSpec.getL()).getDERObject()), new DERInteger(getX()));

        return info.getDEREncoded();
    }
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    }

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

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

        this.y = derY.getValue();
        if (params.getL() != null)
        {
            this.dhSpec = new DHParameterSpec(params.getP(), params.getG(), params.getL().intValue());
        }
        else
        {
            this.dhSpec = new DHParameterSpec(params.getP(), params.getG());
        }
    }
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        return "X.509";
    }

    public byte[] getEncoded()
    {
        SubjectPublicKeyInfo    info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.dhpublicnumber, new DHParameter(dhSpec.getP(), dhSpec.getG(), dhSpec.getL()).getDERObject()), new DERInteger(y));

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

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

            try
            {
                DHParameter dhP = new DHParameter((ASN1Sequence)aIn.readObject());

                if (dhP.getL() != null)
                {
                    currentSpec = new DHParameterSpec(dhP.getP(), dhP.getG(), dhP.getL().intValue());
                }
                else
                {
                    currentSpec = new DHParameterSpec(dhP.getP(), dhP.getG());
                }
            }
            catch (ClassCastException e)
            {
                throw new IOException("Not a valid DH Parameter encoding.");
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         *                   privateValueLength INTEGER OPTIONAL}
         * </pre>
         */
        protected byte[] engineGetEncoded()
        {
            DHParameter dhP = new DHParameter(currentSpec.getP(), currentSpec.getG(), currentSpec.getL());

            try
            {
                return dhP.getEncoded(ASN1Encoding.DER);
            }
            catch (IOException e)
            {
                throw new RuntimeException("Error encoding DHParameters");
            }
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            byte[] params)
            throws IOException
        {
            try
            {
                DHParameter dhP = DHParameter.getInstance(params);

                if (dhP.getL() != null)
                {
                    currentSpec = new DHParameterSpec(dhP.getP(), dhP.getG(), dhP.getL().intValue());
                }
                else
                {
                    currentSpec = new DHParameterSpec(dhP.getP(), dhP.getG());
                }
            }
            catch (ClassCastException e)
            {
                throw new IOException("Not a valid DH Parameter encoding.");
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        this.info = info;
        this.x = derX.getValue();

        if (id.equals(PKCSObjectIdentifiers.dhKeyAgreement))
        {
            DHParameter params = DHParameter.getInstance(seq);

            if (params.getL() != null)
            {
                this.dhSpec = new DHParameterSpec(params.getP(), params.getG(), params.getL().intValue());
            }
            else
            {
                this.dhSpec = new DHParameterSpec(params.getP(), params.getG());
            }
        }
        else if (id.equals(X9ObjectIdentifiers.dhpublicnumber))
        {
            DHDomainParameters params = DHDomainParameters.getInstance(seq);

            this.dhSpec = new DHParameterSpec(params.getP().getValue(), params.getG().getValue());
        }
        else
        {
            throw new IllegalArgumentException("unknown algorithm type: " + id);
        }
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            if (info != null)
            {
                return info.getEncoded(ASN1Encoding.DER);
            }

            PrivateKeyInfo          info = new PrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.dhKeyAgreement, new DHParameter(dhSpec.getP(), dhSpec.getG(), dhSpec.getL()).toASN1Primitive()), new ASN1Integer(getX()));

            return info.getEncoded(ASN1Encoding.DER);
        }
        catch (Exception e)
        {
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        ASN1ObjectIdentifier id = info.getAlgorithm().getAlgorithm();

        // we need the PKCS check to handle older keys marked with the X9 oid.
        if (id.equals(PKCSObjectIdentifiers.dhKeyAgreement) || isPKCSParam(seq))
        {
            DHParameter             params = DHParameter.getInstance(seq);

            if (params.getL() != null)
            {
                this.dhSpec = new DHParameterSpec(params.getP(), params.getG(), params.getL().intValue());
            }
            else
            {
                this.dhSpec = new DHParameterSpec(params.getP(), params.getG());
            }
        }
        else if (id.equals(X9ObjectIdentifiers.dhpublicnumber))
        {
            DHDomainParameters params = DHDomainParameters.getInstance(seq);

            this.dhSpec = new DHParameterSpec(params.getP().getValue(), params.getG().getValue());
        }
        else
        {
            throw new IllegalArgumentException("unknown algorithm type: " + id);
        }
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