Package java.security.spec

Examples of java.security.spec.ECParameterSpec

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                        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(),
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        populateFromPubKeyInfo(info);
    }

    private ECParameterSpec createSpec(EllipticCurve ellipticCurve, ECDomainParameters dp)
    {
        return new ECParameterSpec(
                ellipticCurve,
                new ECPoint(
                        dp.getG().getX().toBigInteger(),
                        dp.getG().getY().toBigInteger()),
                        dp.getN(),
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            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(),
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        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(),
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        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());

            this.ecSpec = new ECParameterSpec(
                ellipticCurve,
                new ECPoint(
                    spec.getG().getX().toBigInteger(),
                    spec.getG().getY().toBigInteger()),
                spec.getN(),
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        else
        {
            X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());
            EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());

            this.ecSpec = new ECParameterSpec(
                ellipticCurve,
                new ECPoint(
                    ecP.getG().getX().toBigInteger(),
                    ecP.getG().getY().toBigInteger()),
                ecP.getN(),
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            putMPInt(((DSAPublicKey) key).getParams().getQ());
            putMPInt(((DSAPublicKey) key).getParams().getG());
            putMPInt(((DSAPublicKey) key).getY());
        } else if (key instanceof ECPublicKey) {
            ECPublicKey ecKey = (ECPublicKey) key;
            ECParameterSpec ecParams = ecKey.getParams();
            String curveName = ECCurves.getCurveName(ecParams);
            putString(ECCurves.ECDSA_SHA2_PREFIX + curveName);
            putString(curveName);
            putBytes(ECCurves.encodeECPoint(ecKey.getW(), ecParams.getCurve()));
        } else {
            throw new IllegalStateException("Unsupported algorithm: " + key.getAlgorithm());
        }
    }
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            putMPInt(((DSAPublicKey) key.getPublic()).getY());
            putMPInt(((DSAPrivateKey) key.getPrivate()).getX());
        } else if (key.getPublic() instanceof ECPublicKey) {
            ECPublicKey ecPub = (ECPublicKey) key.getPublic();
            ECPrivateKey ecPriv = (ECPrivateKey) key.getPrivate();
            ECParameterSpec ecParams = ecPub.getParams();
            String curveName = ECCurves.getCurveName(ecParams);

            putString(ECCurves.ECDSA_SHA2_PREFIX + curveName);
            putString(curveName);
            putString(ECCurves.encodeECPoint(ecPub.getW(), ecParams.getCurve()));
            putMPInt(ecPriv.getS());
        } else {
            throw new IllegalStateException("Unsupported algorithm: " + key.getPublic().getAlgorithm());
        }
    }
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                spec.getN(),
                spec.getH());
        }
        else
        {
            return new ECParameterSpec(
                ellipticCurve,
                new ECPoint(
                    spec.getG().getX().toBigInteger(),
                    spec.getG().getY().toBigInteger()),
                spec.getN(),
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        this.ecSpec = null;
    }

    private ECParameterSpec createSpec(EllipticCurve ellipticCurve, ECDomainParameters dp)
    {
        return new ECParameterSpec(
                ellipticCurve,
                new ECPoint(
                        dp.getG().getX().toBigInteger(),
                        dp.getG().getY().toBigInteger()),
                        dp.getN(),
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