Examples of ECDomainParameters

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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        String algorithm,
        ECPrivateKeyParameters params,
        BCDSTU4145PublicKey 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());
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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            ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);

            if (ecP == null) // DSTU Curve
            {
                ECDomainParameters gParam = DSTU4145NamedCurves.getByOID(oid);
                EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());

                ecSpec = new ECNamedCurveSpec(
                    oid.getId(),
                    ellipticCurve,
                    new ECPoint(
                        gParam.getG().getX().toBigInteger(),
                        gParam.getG().getY().toBigInteger()),
                    gParam.getN(),
                    gParam.getH());
            }
            else
            {
                EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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    public BCDSTU4145PublicKey(
        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
        {
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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        String algorithm,
        ECPublicKeyParameters params,
        ECParameterSpec spec,
        ProviderConfiguration configuration)
    {
        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
        {
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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    public BCDSTU4145PublicKey(
        String algorithm,
        ECPublicKeyParameters params,
        org.bouncycastle.jce.spec.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
        {
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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        String algorithm,
        ECPublicKeyParameters params,
        org.bouncycastle.jce.spec.ECParameterSpec spec,
        ProviderConfiguration configuration)
    {
        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
        {
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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            //ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));
            org.bouncycastle.jce.spec.ECParameterSpec spec = null;
            if (dstuParams.isNamedCurve())
            {
                ASN1ObjectIdentifier curveOid = dstuParams.getNamedCurve();
                ECDomainParameters ecP = DSTU4145NamedCurves.getByOID(curveOid);

                spec = new ECNamedCurveParameterSpec(curveOid.getId(), ecP.getCurve(), ecP.getG(), ecP.getN(), ecP.getH(), ecP.getSeed());
            }
            else
            {
                DSTU4145ECBinary binary = dstuParams.getECBinary();
                byte[] b_bytes = binary.getB();
                if (info.getAlgorithm().getAlgorithm().equals(UAObjectIdentifiers.dstu4145le))
                {
                    reverseBytes(b_bytes);
                }
                DSTU4145BinaryField field = binary.getField();
                ECCurve curve = new ECCurve.F2m(field.getM(), field.getK1(), field.getK2(), field.getK3(), binary.getA(), new BigInteger(1, b_bytes));
                byte[] g_bytes = binary.getG();
                if (info.getAlgorithm().getAlgorithm().equals(UAObjectIdentifiers.dstu4145le))
                {
                    reverseBytes(g_bytes);
                }
                spec = new org.bouncycastle.jce.spec.ECParameterSpec(curve, DSTU4145PointEncoder.decodePoint(curve, g_bytes), binary.getN());
            }

            ECCurve curve = spec.getCurve();
            EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());

            //this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);
            this.q = DSTU4145PointEncoder.decodePoint(curve, keyEnc);

            if (dstuParams.isNamedCurve())
            {
                ecSpec = new ECNamedCurveSpec(
                    dstuParams.getNamedCurve().getId(),
                    ellipticCurve,
                    new ECPoint(
                        spec.getG().getX().toBigInteger(),
                        spec.getG().getY().toBigInteger()),
                    spec.getN(), spec.getH());
            }
            else
            {
                ecSpec = new ECParameterSpec(
                    ellipticCurve,
                    new ECPoint(
                        spec.getG().getX().toBigInteger(),
                        spec.getG().getY().toBigInteger()),
                    spec.getN(), spec.getH().intValue());
            }

        }
        else
        {
            X962Parameters params = new X962Parameters((ASN1Primitive)info.getAlgorithm().getParameters());
            ECCurve curve;
            EllipticCurve ellipticCurve;

            if (params.isNamedCurve())
            {
                ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier)params.getParameters();
                X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);

                curve = ecP.getCurve();
                ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());

                ecSpec = new ECNamedCurveSpec(
                    ECUtil.getCurveName(oid),
                    ellipticCurve,
                    new ECPoint(
                        ecP.getG().getX().toBigInteger(),
                        ecP.getG().getY().toBigInteger()),
                    ecP.getN(),
                    ecP.getH());
            }
            else if (params.isImplicitlyCA())
            {
                ecSpec = null;
                curve = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa().getCurve();
            }
            else
            {
                X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());

                curve = ecP.getCurve();
                ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());

                this.ecSpec = new ECParameterSpec(
                    ellipticCurve,
                    new ECPoint(
                        ecP.getG().getX().toBigInteger(),
                        ecP.getG().getY().toBigInteger()),
                    ecP.getN(),
                    ecP.getH().intValue());
            }

            DERBitString bits = info.getPublicKeyData();
            byte[] data = bits.getBytes();
            ASN1OctetString key = new DEROctetString(data);
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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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);
            ECDomainParameters ecP = DSTU4145NamedCurves.getByOID(new ASN1ObjectIdentifier(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)
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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            return;
        }

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

        ECDomainParameters curve_params = this.ecAgreeServerPrivateKey.getParameters();

        this.ecAgreeClientPublicKey = TlsECCUtils.validateECPublicKey(TlsECCUtils.deserializeECPublicKey(
            serverECPointFormats, curve_params, point));
    }
View Full Code Here

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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            {
                s = ProviderUtil.getEcImplicitlyCa();

                return new ECPublicKeyParameters(
                            ((JCEECPublicKey)k).engineGetQ(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN(), s.getH(), s.getSeed()));
            }
            else
            {
                return new ECPublicKeyParameters(
                            k.getQ(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN(), s.getH(), s.getSeed()));
            }
        }

        throw new InvalidKeyException("can't identify EC public key.");
    }
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