Package org.bouncycastle.crypto.params

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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        SecurityParameters securityParameters = context.getSecurityParameters();

        Signer signer = initVerifyer(tlsSigner, securityParameters);
        InputStream sigIn = new SignerInputStream(input, signer);

        ECDomainParameters curve_params = TlsECCUtils.readECParameters(namedCurves, clientECPointFormats, sigIn);

        byte[] point = TlsUtils.readOpaque8(sigIn);

        byte[] sigByte = TlsUtils.readOpaque16(input);
        if (!signer.verifySignature(sigByte))
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        String algorithm,
        ECPrivateKeyParameters params,
        BCECGOST3410PublicKey pubKey,
        ECParameterSpec spec)
    {
        ECDomainParameters      dp = params.getParameters();

        this.algorithm = algorithm;
        this.d = params.getD();

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = new ECParameterSpec(
                            ellipticCurve,
                            new ECPoint(
                                    dp.getG().getX().toBigInteger(),
                                    dp.getG().getY().toBigInteger()),
                            dp.getN(),
                            dp.getH().intValue());
        }
        else
        {
            this.ecSpec = spec;
        }
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        String algorithm,
        ECPrivateKeyParameters params,
        BCECGOST3410PublicKey pubKey,
        org.bouncycastle.jce.spec.ECParameterSpec spec)
    {
        ECDomainParameters      dp = params.getParameters();

        this.algorithm = algorithm;
        this.d = params.getD();

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = new ECParameterSpec(
                            ellipticCurve,
                            new ECPoint(
                                    dp.getG().getX().toBigInteger(),
                                    dp.getG().getY().toBigInteger()),
                            dp.getN(),
                            dp.getH().intValue());
        }
        else
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(spec.getCurve(), spec.getSeed());
           
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            ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);

            if (ecP == null) // GOST Curve
            {
                ECDomainParameters gParam = ECGOST3410NamedCurves.getByOID(oid);
                EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());

                ecSpec = new ECNamedCurveSpec(
                        ECGOST3410NamedCurves.getName(oid),
                        ellipticCurve,
                        new ECPoint(
                                gParam.getG().getX().toBigInteger(),
                                gParam.getG().getY().toBigInteger()),
                        gParam.getN(),
                        gParam.getH());
            }
            else
            {
                EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
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        if (params instanceof ECParameterSpec)
        {
            ECParameterSpec p = (ECParameterSpec)params;
            this.ecParams = params;

            param = new ECKeyGenerationParameters(new ECDomainParameters(p.getCurve(), p.getG(), p.getN()), random);

            engine.init(param);
            initialised = true;
        }
        else if (params instanceof java.security.spec.ECParameterSpec)
        {
            java.security.spec.ECParameterSpec p = (java.security.spec.ECParameterSpec)params;
            this.ecParams = params;

            ECCurve curve = EC5Util.convertCurve(p.getCurve());
            ECPoint g = EC5Util.convertPoint(curve, p.getGenerator(), false);

            param = new ECKeyGenerationParameters(new ECDomainParameters(curve, g, p.getOrder(), BigInteger.valueOf(p.getCofactor())), random);

            engine.init(param);
            initialised = true;
        }
        else if (params instanceof ECGenParameterSpec || params instanceof ECNamedCurveGenParameterSpec)
        {
            String curveName;

            if (params instanceof ECGenParameterSpec)
            {
                curveName = ((ECGenParameterSpec)params).getName();
            }
            else
            {
                curveName = ((ECNamedCurveGenParameterSpec)params).getName();
            }

            ECDomainParameters ecP = ECGOST3410NamedCurves.getByName(curveName);
            if (ecP == null)
            {
                throw new InvalidAlgorithmParameterException("unknown curve name: " + curveName);
            }

            this.ecParams = new ECNamedCurveSpec(
                curveName,
                ecP.getCurve(),
                ecP.getG(),
                ecP.getN(),
                ecP.getH(),
                ecP.getSeed());

            java.security.spec.ECParameterSpec p = (java.security.spec.ECParameterSpec)ecParams;

            ECCurve curve = EC5Util.convertCurve(p.getCurve());
            ECPoint g = EC5Util.convertPoint(curve, p.getGenerator(), false);

            param = new ECKeyGenerationParameters(new ECDomainParameters(curve, g, p.getOrder(), BigInteger.valueOf(p.getCofactor())), random);

            engine.init(param);
            initialised = true;
        }
        else if (params == null && BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa() != null)
        {
            ECParameterSpec p = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
            this.ecParams = params;

            param = new ECKeyGenerationParameters(new ECDomainParameters(p.getCurve(), p.getG(), p.getN()), random);

            engine.init(param);
            initialised = true;
        }
        else if (params == null && BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa() == null)
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        ECPrivateKeyParameters params,
        BCECPublicKey pubKey,
        ECParameterSpec spec,
        ProviderConfiguration configuration)
    {
        ECDomainParameters      dp = params.getParameters();

        this.algorithm = algorithm;
        this.d = params.getD();
        this.configuration = configuration;

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = new ECParameterSpec(
                            ellipticCurve,
                            new ECPoint(
                                    dp.getG().getX().toBigInteger(),
                                    dp.getG().getY().toBigInteger()),
                            dp.getN(),
                            dp.getH().intValue());
        }
        else
        {
            this.ecSpec = spec;
        }
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        ECPrivateKeyParameters params,
        BCECPublicKey pubKey,
        org.bouncycastle.jce.spec.ECParameterSpec spec,
        ProviderConfiguration configuration)
    {
        ECDomainParameters      dp = params.getParameters();

        this.algorithm = algorithm;
        this.d = params.getD();
        this.configuration = configuration;

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = new ECParameterSpec(
                            ellipticCurve,
                            new ECPoint(
                                    dp.getG().getX().toBigInteger(),
                                    dp.getG().getY().toBigInteger()),
                            dp.getN(),
                            dp.getH().intValue());
        }
        else
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(spec.getCurve(), spec.getSeed());
           
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            ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);

            if (ecP == null) // GOST Curve
            {
                ECDomainParameters gParam = ECGOST3410NamedCurves.getByOID(oid);
                EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());

                ecSpec = new ECNamedCurveSpec(
                        ECGOST3410NamedCurves.getName(oid),
                        ellipticCurve,
                        new ECPoint(
                                gParam.getG().getX().toBigInteger(),
                                gParam.getG().getY().toBigInteger()),
                        gParam.getN(),
                        gParam.getH());
            }
            else
            {
                EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
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        IESParameters params = new IESWithCipherParameters(engineSpec.getDerivationV(),
            engineSpec.getEncodingV(),
            engineSpec.getMacKeySize(),
            engineSpec.getCipherKeySize());

        final ECDomainParameters ecParams = ((ECKeyParameters)key).getParameters();

        final byte[] V;

        if (otherKeyParameter != null)
        {
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    public BCECGOST3410PublicKey(
        String algorithm,
        ECPublicKeyParameters params,
        ECParameterSpec spec)
    {
        ECDomainParameters      dp = params.getParameters();

        this.algorithm = algorithm;
        this.q = params.getQ();

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = createSpec(ellipticCurve, dp);
        }
        else
        {
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Related Classes of org.bouncycastle.crypto.params.ECDomainParameters

  • com.nimbusds.jose.crypto.ECDSASigner
  • com.nimbusds.jose.crypto.ECDSAVerifier
  • org.bouncycastle.crypto.agreement.ECDHCBasicAgreement
  • org.bouncycastle.crypto.test.ECIESTest
  • org.bouncycastle.crypto.test.ECTest$ECBasicAgreementTest
  • org.bouncycastle.crypto.test.ECTest$ECDSA192bitPrime
  • org.bouncycastle.crypto.test.ECTest$ECDSA239bitPrime
  • org.bouncycastle.crypto.test.ECTest$ECDSAKeyGenTest
  • org.bouncycastle.crypto.tls.TlsECCUtils
  • org.bouncycastle.crypto.tls.TlsECDHEKeyExchange
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