Package org.bouncycastle.asn1.x9

Examples of org.bouncycastle.asn1.x9.DHDomainParameters

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                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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                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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        {
            DHPublicKey dhPublicKey = DHPublicKey.getInstance(keyInfo.parsePublicKey());

            BigInteger y = dhPublicKey.getY().getValue();

            DHDomainParameters dhParams = DHDomainParameters.getInstance(algId.getParameters());

            BigInteger p = dhParams.getP().getValue();
            BigInteger g = dhParams.getG().getValue();
            BigInteger q = dhParams.getQ().getValue();

            BigInteger j = null;
            if (dhParams.getJ() != null)
            {
                j = dhParams.getJ().getValue();
            }

            DHValidationParameters validation = null;
            DHValidationParms dhValidationParms = dhParams.getValidationParms();
            if (dhValidationParms != null)
            {
                byte[] seed = dhValidationParms.getSeed().getBytes();
                BigInteger pgenCounter = dhValidationParms.getPgenCounter().getValue();
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                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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                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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            return new RSAKeyParameters(false, pubKey.getModulus(), pubKey.getPublicExponent());
        }
        else if (algId.getAlgorithm().equals(X9ObjectIdentifiers.dhpublicnumber))
        {
            DHPublicKey dhPublicKey = DHPublicKey.getInstance(keyInfo.parsePublicKey());

            BigInteger y = dhPublicKey.getY().getValue();

            DHDomainParameters dhParams = DHDomainParameters.getInstance(algId.getParameters());

            BigInteger p = dhParams.getP().getValue();
            BigInteger g = dhParams.getG().getValue();
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            {
                j = dhParams.getJ().getValue();
            }

            DHValidationParameters validation = null;
            DHValidationParms dhValidationParms = dhParams.getValidationParms();
            if (dhValidationParms != null)
            {
                byte[] seed = dhValidationParms.getSeed().getBytes();
                BigInteger pgenCounter = dhValidationParms.getPgenCounter().getValue();

                // TODO Check pgenCounter size?

                validation = new DHValidationParameters(seed, pgenCounter.intValue());
            }
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    }

    JCEECPublicKey(
        SubjectPublicKeyInfo    info)
    {
        X962Parameters          params = new X962Parameters((DERObject)info.getAlgorithmId().getParameters());

        if (params.isNamedCurve())
        {
            DERObjectIdentifier oid = (DERObjectIdentifier)params.getParameters();
            X9ECParameters      ecP = X962NamedCurves.getByOID(oid);

            ecSpec = new ECNamedCurveParameterSpec(
                                        X962NamedCurves.getName(oid),
                                        ecP.getCurve(),
                                        ecP.getG(),
                                        ecP.getN(),
                                        ecP.getH(),
                                        ecP.getSeed());
        }
        else
        {
            X9ECParameters ecP = new X9ECParameters(
                        (ASN1Sequence)params.getParameters());
            ecSpec = new ECParameterSpec(
                                        ecP.getCurve(),
                                        ecP.getG(),
                                        ecP.getN(),
                                        ecP.getH(),
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    public byte[] getEncoded()
    {
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        DEROutputStream         dOut = new DEROutputStream(bOut);
        X962Parameters          params = null;

        if (ecSpec instanceof ECNamedCurveParameterSpec)
        {
            params = new X962Parameters(X962NamedCurves.getOID(((ECNamedCurveParameterSpec)ecSpec).getName()));
        }
        else
        {
            X9ECParameters          ecP = new X9ECParameters(
                                            ecSpec.getCurve(),
                                            ecSpec.getG(),
                                            ecSpec.getN(),
                                            ecSpec.getH(),
                                            ecSpec.getSeed());
            params = new X962Parameters(ecP);
        }

        ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(this.getQ()).getDERObject());

        SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());

        try
        {
            dOut.writeObject(info);
            dOut.close();
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    }

    JCEECPrivateKey(
        PrivateKeyInfo      info)
    {
        X962Parameters      params = new X962Parameters((DERObject)info.getAlgorithmId().getParameters());

        if (params.isNamedCurve())
        {
            DERObjectIdentifier oid = (DERObjectIdentifier)params.getParameters();
            X9ECParameters      ecP = X962NamedCurves.getByOID(oid);

            ecSpec = new ECNamedCurveParameterSpec(
                                        X962NamedCurves.getName(oid),
                                        ecP.getCurve(),
                                        ecP.getG(),
                                        ecP.getN(),
                                        ecP.getH(),
                                        ecP.getSeed());
        }
        else
        {
            X9ECParameters          ecP = new X9ECParameters((ASN1Sequence)params.getParameters());
            ecSpec = new ECParameterSpec(ecP.getCurve(),
                                            ecP.getG(),
                                            ecP.getN(),
                                            ecP.getH(),
                                            ecP.getSeed());
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Related Classes of org.bouncycastle.asn1.x9.DHDomainParameters

  • com.nimbusds.jose.crypto.ECDSAProvider
  • com.nimbusds.jose.crypto.ECDSASigner
  • com.nimbusds.jose.crypto.ECDSAVerifier
  • org.bouncycastle.asn1.ASN1Encodable
  • org.bouncycastle.asn1.ASN1EncodableVector
  • org.bouncycastle.asn1.ASN1Integer
  • org.bouncycastle.asn1.ASN1ObjectIdentifier
  • org.bouncycastle.asn1.ASN1SequenceParser
  • org.bouncycastle.asn1.BERSequence
  • org.bouncycastle.asn1.BERTaggedObject
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