Package org.bouncycastle.jce.spec

Examples of org.bouncycastle.jce.spec.ECParameterSpec

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

        if (spec == null)
        {
            this.ecSpec = new ECParameterSpec(
                            dp.getCurve(),
                            dp.getG(),
                            dp.getN(),
                            dp.getH(),
                            dp.getSeed());
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        }
        else
        {
            X9ECParameters ecP = new X9ECParameters(
                        (ASN1Sequence)params.getParameters());
            ecSpec = new ECParameterSpec(
                                        ecP.getCurve(),
                                        ecP.getG(),
                                        ecP.getN(),
                                        ecP.getH(),
                                        ecP.getSeed());
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        this.algorithm = algorithm;
        this.d = params.getD();

        if (spec == null)
        {
            this.ecSpec = new ECParameterSpec(
                            dp.getCurve(),
                            dp.getG(),
                            dp.getN(),
                            dp.getH(),
                            dp.getSeed());
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                                        ecP.getSeed());
        }
        else
        {
            X9ECParameters          ecP = new X9ECParameters((ASN1Sequence)params.getParameters());
            ecSpec = new ECParameterSpec(ecP.getCurve(),
                                            ecP.getG(),
                                            ecP.getN(),
                                            ecP.getH(),
                                            ecP.getSeed());
        }
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        throws InvalidKeyException
    {
        if (key instanceof ECPublicKey)
        {
            ECPublicKey    k = (ECPublicKey)key;
            ECParameterSpec s = k.getParams();

            return new ECPublicKeyParameters(
                            k.getQ(),
                            new ECDomainParameters(s.getCurve(), s.getG(), s.getN()));
        }

        throw new InvalidKeyException("can't identify EC public key.");
    }
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        throws InvalidKeyException
    {
        if (key instanceof ECPrivateKey)
        {
            ECPrivateKey    k = (ECPrivateKey)key;
            ECParameterSpec s = k.getParams();

            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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        ECCurve curve = new ECCurve.Fp(
            mod_p, // p
            new BigInteger("7"), // a
            new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414")); // b

        ECParameterSpec spec = new ECParameterSpec(
            curve,
                new ECPoint.Fp(curve,
                               new ECFieldElement.Fp(mod_p,new BigInteger("2")), // x
                               new ECFieldElement.Fp(mod_p,new BigInteger("4018974056539037503335449422937059775635739389905545080690979365213431566280"))), // y
                new BigInteger("57896044618658097711785492504343953927082934583725450622380973592137631069619")); // q
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    private void generationTest() throws Exception
    {
        ECCurve.F2m curve = new ECCurve.F2m(173, 1, 2, 10, BigInteger.ZERO, new BigInteger("108576C80499DB2FC16EDDF6853BBB278F6B6FB437D9", 16));

        ECParameterSpec spec = new ECParameterSpec(
            curve,
            curve.createPoint(new BigInteger("BE6628EC3E67A91A4E470894FBA72B52C515F8AEE9", 16), new BigInteger("D9DEEDF655CF5412313C11CA566CDC71F4DA57DB45C", 16), false),
            new BigInteger("800000000000000000000189B4E67606E3825BB2831", 16));
       
        SecureRandom k = new FixedSecureRandom(Hex.decode("00137449348C1249971759D99C252FFE1E14D8B31F00"));
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        SecureRandom k = new FixedSecureRandom(Hex.decode("00137449348C1249971759D99C252FFE1E14D8B31F00"));

        ECCurve.F2m curve = new ECCurve.F2m(173, 1, 2, 10, BigInteger.ZERO, new BigInteger("108576C80499DB2FC16EDDF6853BBB278F6B6FB437D9", 16));

        ECParameterSpec spec = new ECParameterSpec(
            curve,
            curve.createPoint(new BigInteger("BE6628EC3E67A91A4E470894FBA72B52C515F8AEE9", 16), new BigInteger("D9DEEDF655CF5412313C11CA566CDC71F4DA57DB45C", 16), false),
            new BigInteger("800000000000000000000189B4E67606E3825BB2831", 16));

        ECPrivateKeySpec priKey = new ECPrivateKeySpec(
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        ECCurve curve = new ECCurve.Fp(
                                new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
                                new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
                                new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b

        ECParameterSpec ecSpec = new ECParameterSpec(
                                curve,
                                curve.decodePoint(Hex.decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
                                new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307")); // n

        KeyPairGenerator    g = KeyPairGenerator.getInstance("ECDSA", "BC");
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Related Classes of org.bouncycastle.jce.spec.ECParameterSpec

  • org.bouncycastle.jcajce.provider.asymmetric.dstu.KeyFactorySpi
  • org.bouncycastle.jcajce.provider.asymmetric.dstu.KeyPairGeneratorSpi
  • org.bouncycastle.jcajce.provider.asymmetric.ec.KeyFactorySpi
  • org.bouncycastle.jcajce.provider.asymmetric.ec.KeyPairGeneratorSpi$EC
  • org.bouncycastle.jcajce.provider.asymmetric.ecgost.KeyFactorySpi
  • org.bouncycastle.jcajce.provider.asymmetric.ecgost.KeyPairGeneratorSpi
  • org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil
  • org.bouncycastle.jce.provider.asymmetric.ec.ECUtil
  • org.bouncycastle.jce.provider.asymmetric.ec.KeyFactory
  • org.bouncycastle.jce.provider.asymmetric.ec.KeyPairGenerator$EC
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