Package org.bouncycastle2.jce.spec

Examples of org.bouncycastle2.jce.spec.ECParameterSpec

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        PrivateKey    key)
        throws InvalidKeyException
    {
        if (key instanceof ElGamalPrivateKey)
        {
            ElGamalPrivateKey    k = (ElGamalPrivateKey)key;

            return new ElGamalPrivateKeyParameters(k.getX(),
                new ElGamalParameters(k.getParameters().getP(), k.getParameters().getG()));
        }
        else if (key instanceof DHPrivateKey)
        {
            DHPrivateKey    k = (DHPrivateKey)key;

            return new ElGamalPrivateKeyParameters(k.getX(),
                new ElGamalParameters(k.getParams().getP(), k.getParams().getG()));
        }
                       
        throw new InvalidKeyException("can't identify private key for El Gamal.");
    }
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        PublicKey    key)
        throws InvalidKeyException
    {
        if (key instanceof ElGamalPublicKey)
        {
            ElGamalPublicKey    k = (ElGamalPublicKey)key;

            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParameters().getP(), k.getParameters().getG()));
        }
        else if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParams().getP(), k.getParams().getG()));
        }

        throw new InvalidKeyException("can't identify public key for El Gamal.");
    }
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    static public class noneRSA
        extends JDKDigestSignature
    {
        public noneRSA()
        {
            super(new NullDigest(), new PKCS1Encoding(new RSABlindedEngine()));
        }
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        if (ecP == null)
        {
            return null;
        }

        return new ECNamedCurveParameterSpec(
                                        name,
                                        ecP.getCurve(),
                                        ecP.getG(),
                                        ecP.getN(),
                                        ecP.getH(),
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            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());

                ecSpec = new ECNamedCurveSpec(
                        ECUtil.getCurveName(oid),
                        ellipticCurve,
                        new ECPoint(
                                ecP.getG().getX().toBigInteger(),
                                ecP.getG().getY().toBigInteger()),
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    {
        SecurityManager securityManager = System.getSecurityManager();

        if (parameterName.equals(ConfigurableProvider.THREAD_LOCAL_EC_IMPLICITLY_CA))
        {
            ECParameterSpec curveSpec;

            if (securityManager != null)
            {
                securityManager.checkPermission(BC_EC_LOCAL_PERMISSION);
            }
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        }
    }

    public static ECParameterSpec getEcImplicitlyCa()
    {
        ECParameterSpec spec = (ECParameterSpec)threadSpec.get();

        if (spec != null)
        {
            return spec;
        }
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            ECPublicKeyParameters       pub = (ECPublicKeyParameters)pair.getPublic();
            ECPrivateKeyParameters      priv = (ECPrivateKeyParameters)pair.getPrivate();

            if (ecParams instanceof ECParameterSpec)
            {
                ECParameterSpec p = (ECParameterSpec)ecParams;

                JCEECPublicKey pubKey = new JCEECPublicKey(algorithm, pub, p);
                return new KeyPair(pubKey,
                                   new JCEECPrivateKey(algorithm, priv, pubKey, p));
            }
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        throws InvalidKeyException
    {
        if (key instanceof ECPublicKey)
        {
            ECPublicKey    k = (ECPublicKey)key;
            ECParameterSpec s = k.getParameters();

            if (s == null)
            {
                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()));
            }
        }
        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()));
        }

        throw new InvalidKeyException("cannot identify EC public key.");
    }
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        throws InvalidKeyException
    {
        if (key instanceof ECPrivateKey)
        {
            ECPrivateKey  k = (ECPrivateKey)key;
            ECParameterSpec s = k.getParameters();

            if (s == null)
            {
                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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Related Classes of org.bouncycastle2.jce.spec.ECParameterSpec

  • org.bouncycastle2.asn1.ASN1InputStream
  • org.bouncycastle2.asn1.ASN1Sequence
  • org.bouncycastle2.asn1.cryptopro.GOST3410PublicKeyAlgParameters
  • org.bouncycastle2.asn1.DERObjectIdentifier
  • org.bouncycastle2.asn1.DEROctetString
  • org.bouncycastle2.asn1.pkcs.RSAPrivateKeyStructure
  • org.bouncycastle2.asn1.x509.RSAPublicKeyStructure
  • org.bouncycastle2.bcpg.sig.PreferredAlgorithms
  • org.bouncycastle2.crypto.BufferedBlockCipher
  • org.bouncycastle2.crypto.CipherParameters
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