Package org.bouncycastle.crypto.params

Examples of org.bouncycastle.crypto.params.ECDomainParameters

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            ECPrivateKey  k = (ECPrivateKey)key;
            ECParameterSpec s = k.getParameters();

            return new ECPrivateKeyParameters(
                            k.getD(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN()));
        }
                       
        throw new InvalidKeyException("can't identify EC private key.");
    }
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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;
                ECPoint g;
                ECField field = p.getCurve().getField();

                if (field instanceof ECFieldFp)
                {
                    curve = new ECCurve.Fp(((ECFieldFp)p.getCurve().getField()).getP(), p.getCurve().getA(), p.getCurve().getB());
                    g = new ECPoint.Fp(curve, new ECFieldElement.Fp(((ECCurve.Fp)curve).getQ(), p.getGenerator().getAffineX()), new ECFieldElement.Fp(((ECCurve.Fp)curve).getQ(), p.getGenerator().getAffineY()));
                }
                else
                {
                    ECFieldF2m fieldF2m = (ECFieldF2m)field;
                    int m = fieldF2m.getM();
                    int ks[] = ECUtil.convertMidTerms(fieldF2m.getMidTermsOfReductionPolynomial());
                    curve = new ECCurve.F2m(m, ks[0], ks[1], ks[2], p.getCurve().getA(), p.getCurve().getB());
                    g = new ECPoint.F2m(curve, new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], p.getGenerator().getAffineX()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], p.getGenerator().getAffineY()), 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)
            {
                if (this.algorithm.equals("ECGOST3410"))
                {
                    ECDomainParameters  ecP = ECGOST3410NamedCurves.getByName(((ECGenParameterSpec)params).getName());
                    if (ecP == null)
                    {
                        throw new InvalidAlgorithmParameterException("unknown curve name: " + ((ECGenParameterSpec)params).getName());
                    }

                    this.ecParams = new ECNamedCurveParameterSpec(
                                                    ((ECGenParameterSpec)params).getName(),
                                                    ecP.getCurve(),
                                                    ecP.getG(),
                                                    ecP.getN(),
                                                    ecP.getH(),
                                                    ecP.getSeed());
                }
                else
                {
                    X9ECParameters  ecP = X962NamedCurves.getByName(((ECGenParameterSpec)params).getName());
                    if (ecP == null)
                    {
                        ecP = SECNamedCurves.getByName(((ECGenParameterSpec)params).getName());
                        if (ecP == null)
                        {
                            ecP = NISTNamedCurves.getByName(((ECGenParameterSpec)params).getName());
                        }
                        if (ecP == null)
                        {
                            throw new InvalidAlgorithmParameterException("unknown curve name: " + ((ECGenParameterSpec)params).getName());
                        }
                    }

                    this.ecParams = new ECNamedCurveSpec(
                            ((ECGenParameterSpec)params).getName(),
                            ecP.getCurve(),
                            ecP.getG(),
                            ecP.getN(),
                            ecP.getH(),
                            ecP.getSeed());
                }

                java.security.spec.ECParameterSpec p = (java.security.spec.ECParameterSpec)ecParams;
                ECCurve curve;
                ECPoint g;
                ECField field = p.getCurve().getField();

                if (field instanceof ECFieldFp)
                {
                    curve = new ECCurve.Fp(((ECFieldFp)p.getCurve().getField()).getP(), p.getCurve().getA(), p.getCurve().getB());
                    g = new ECPoint.Fp(curve, new ECFieldElement.Fp(((ECCurve.Fp)curve).getQ(), p.getGenerator().getAffineX()), new ECFieldElement.Fp(((ECCurve.Fp)curve).getQ(), p.getGenerator().getAffineY()));
                }
                else
                {
                    ECFieldF2m fieldF2m = (ECFieldF2m)field;
                    int m = fieldF2m.getM();
                    int ks[] = ECUtil.convertMidTerms(fieldF2m.getMidTermsOfReductionPolynomial());
                    curve = new ECCurve.F2m(m, ks[0], ks[1], ks[2], p.getCurve().getA(), p.getCurve().getB());
                    g = new ECPoint.F2m(curve, new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], p.getGenerator().getAffineX()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], p.getGenerator().getAffineY()), false);
                }

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

                engine.init(param);
                initialised = true;
            }
            else if (params == null && ProviderUtil.getEcImplicitlyCa() != null)
            {
                ECParameterSpec p = ProviderUtil.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 && ProviderUtil.getEcImplicitlyCa() == null)
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    JCEECPublicKey(
        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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    JCEECPublicKey(
        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
        {
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    JCEECPrivateKey(
        String                  algorithm,
        ECPrivateKeyParameters  params,
        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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    JCEECPrivateKey(
        String                  algorithm,
        ECPrivateKeyParameters  params,
        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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            {
                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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                s = ProviderUtil.getEcImplicitlyCa();
            }

            return new ECPrivateKeyParameters(
                            k.getD(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN(), s.getH(), s.getSeed()));
        }
                       
        throw new InvalidKeyException("can't identify EC private key.");
    }
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            {
                s = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();

                return new ECPublicKeyParameters(
                            ((BCECPublicKey)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()));
            }
        }
        else if (key instanceof java.security.interfaces.ECPublicKey)
        {
            java.security.interfaces.ECPublicKey pubKey = (java.security.interfaces.ECPublicKey)key;
            ECParameterSpec s = EC5Util.convertSpec(pubKey.getParams(), false);
            return new ECPublicKeyParameters(
                EC5Util.convertPoint(pubKey.getParams(), pubKey.getW(), false),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN(), s.getH(), s.getSeed()));
        }
        else
        {
            // see if we can build a key from key.getEncoded()
            try
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                s = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
            }

            return new ECPrivateKeyParameters(
                            k.getD(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN(), s.getH(), s.getSeed()));
        }
        else if (key instanceof java.security.interfaces.ECPrivateKey)
        {
            java.security.interfaces.ECPrivateKey privKey = (java.security.interfaces.ECPrivateKey)key;
            ECParameterSpec s = EC5Util.convertSpec(privKey.getParams(), false);
            return new ECPrivateKeyParameters(
                            privKey.getS(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN(), s.getH(), s.getSeed()));
        }
        else
        {
            // see if we can build a key from key.getEncoded()
            try
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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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