Package java.security.spec

Examples of java.security.spec.ECFieldF2m

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     * Expected: must return <code>field</code> which is equal
     * to the one passed to the constructor; (both must refer
     * the same object)
     */
    public final void testGetField() {
        ECFieldF2m f = new ECFieldF2m(5);
        BigInteger a = BigInteger.valueOf(5L);
        BigInteger b = BigInteger.valueOf(19L);
        EllipticCurve c = new EllipticCurve(f, a, b);
        assertEquals(f, c.getField());
        assertSame(f, c.getField());
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        {
            this.q = new org.bouncycastle.math.ec.ECPoint.Fp(new ECCurve.Fp(((ECFieldFp)field).getP(), ecSpec.getCurve().getA(), ecSpec.getCurve().getB()), new ECFieldElement.Fp(((ECFieldFp)field).getP(), spec.getW().getAffineX()), new ECFieldElement.Fp(((ECFieldFp)field).getP(), spec.getW().getAffineY()));
        }
        else
        {
            ECFieldF2m fieldF2m = (ECFieldF2m)field;
            int m = fieldF2m.getM();
            int ks[] = ECUtil.convertMidTerms(fieldF2m.getMidTermsOfReductionPolynomial());
            this.q = new org.bouncycastle.math.ec.ECPoint.F2m(new ECCurve.F2m(m, ks[0], ks[1], ks[2], ecSpec.getCurve().getA(), ecSpec.getCurve().getB()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], spec.getW().getAffineX()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], spec.getW().getAffineY()), false);
        }
    }
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        {
            this.q = new org.bouncycastle.math.ec.ECPoint.Fp(new ECCurve.Fp(((ECFieldFp)field).getP(), ecSpec.getCurve().getA(), ecSpec.getCurve().getB()), new ECFieldElement.Fp(((ECFieldFp)ecSpec.getCurve().getField()).getP(), key.getW().getAffineX()), new ECFieldElement.Fp(((ECFieldFp)ecSpec.getCurve().getField()).getP(), key.getW().getAffineY()));
        }
        else
        {
            ECFieldF2m fieldF2m = (ECFieldF2m)field;
            int m = fieldF2m.getM();
            int ks[] = ECUtil.convertMidTerms(fieldF2m.getMidTermsOfReductionPolynomial());
           
            this.q = new org.bouncycastle.math.ec.ECPoint.F2m(new ECCurve.F2m(m, ks[0], ks[1], ks[0], ecSpec.getCurve().getA(), ecSpec.getCurve().getB()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[0], key.getW().getAffineX()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[0], key.getW().getAffineY()), false);
        }
    }
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                    curve = new ECCurve.Fp(((ECFieldFp)field).getP(), ecSpec.getCurve().getA(), ecSpec.getCurve().getB());
                    ecPoint = new org.bouncycastle.math.ec.ECPoint.Fp(curve, curve.fromBigInteger(ecSpec.getGenerator().getAffineX()), curve.fromBigInteger(ecSpec.getGenerator().getAffineY()), withCompression);
                }
                else
                {
                    ECFieldF2m fieldF2m = (ECFieldF2m)field;
                    int ks[] = ECUtil.convertMidTerms(fieldF2m.getMidTermsOfReductionPolynomial());

                    curve = new ECCurve.F2m(fieldF2m.getM(), ks[0], ks[1], ks[2], ecSpec.getCurve().getA(), ecSpec.getCurve().getB());
                    ecPoint = new org.bouncycastle.math.ec.ECPoint.F2m(curve, curve.fromBigInteger(ecSpec.getGenerator().getAffineX()), curve.fromBigInteger(ecSpec.getGenerator().getAffineY()), withCompression);
                }

                ecP = new X9ECParameters(
                        curve,
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                curve = new ECCurve.Fp(((ECFieldFp)field).getP(), ecSpec.getCurve().getA(), ecSpec.getCurve().getB());
                ecPoint = new org.bouncycastle.math.ec.ECPoint.Fp(curve, new ECFieldElement.Fp(((ECCurve.Fp)curve).getQ(), ecSpec.getGenerator().getAffineX()), new ECFieldElement.Fp(((ECCurve.Fp)curve).getQ(), ecSpec.getGenerator().getAffineY()), withCompression);
            }
            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], ecSpec.getCurve().getA(), ecSpec.getCurve().getB());
                ecPoint = new org.bouncycastle.math.ec.ECPoint.F2m(curve, new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], ecSpec.getGenerator().getAffineX()), new ECFieldElement.F2m(m, ks[0], ks[1], ks[2], ecSpec.getGenerator().getAffineY()), withCompression);
            }

            X9ECParameters          ecP = new X9ECParameters(
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        byte[] kData = BigIntegers.asUnsignedByteArray(new BigInteger("171278725565216523967285789236956265265265235675811949404040041670216363"));

        SecureRandom    k = new FixedSecureRandom(kData);

        EllipticCurve curve = new EllipticCurve(
            new ECFieldF2m(239, // m
                           new int[] { 36 }), // k
            new BigInteger("32010857077C5431123A46B808906756F543423E8D27877578125778AC76", 16), // a
            new BigInteger("790408F2EEDAF392B012EDEFB3392F30F4327C0CA3F31FC383C422AA8C16", 16)); // b
   
        ECParameterSpec params = new ECParameterSpec(
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                    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);
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            if (curveF2m.isTrinomial())
            {
                ks = new int[] { curveF2m.getK1() };
               
                return new EllipticCurve(new ECFieldF2m(curveF2m.getM(), ks), curve.getA().toBigInteger(), curve.getB().toBigInteger(), null);
            }
            else
            {
                ks = new int[] { curveF2m.getK3(), curveF2m.getK2(), curveF2m.getK1() };
               
                return new EllipticCurve(new ECFieldF2m(curveF2m.getM(), ks), curve.getA().toBigInteger(), curve.getB().toBigInteger(), null);
            }
        }
    }
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        {
            return new ECCurve.Fp(((ECFieldFp)field).getP(), a, b);
        }
        else
        {
            ECFieldF2m fieldF2m = (ECFieldF2m)field;
            int m = fieldF2m.getM();
            int ks[] = ECUtil.convertMidTerms(fieldF2m.getMidTermsOfReductionPolynomial());
            return new ECCurve.F2m(m, ks[0], ks[1], ks[2], a, b);
        }
    }
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        // test case 7: not equal objects - field class
        c1 = new EllipticCurve(new ECFieldFp(BigInteger.valueOf(23L)),
                BigInteger.ONE,
                BigInteger.valueOf(19L),
                new byte[24]);
        c2 = new EllipticCurve(new ECFieldF2m(5),
                BigInteger.ONE,
                BigInteger.valueOf(19L),
                new byte[24]);
        assertFalse(c1.equals(c2) || c2.equals(c1));
    }
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Related Classes of java.security.spec.ECFieldF2m

  • org.apache.harmony.security.tests.java.security.spec.ECFieldF2m_ImplTest
  • org.apache.harmony.security.tests.java.security.spec.ECFieldF2mTest
  • org.apache.harmony.security.tests.java.security.spec.EllipticCurve_ImplTest
  • org.apache.harmony.security.tests.java.security.spec.EllipticCurveTest
  • org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util
  • org.bouncycastle.jce.provider.asymmetric.ec.EC5Util
  • org.bouncycastle.jce.provider.EC5Util
  • org.bouncycastle.jce.provider.JCEECPrivateKey
  • org.bouncycastle.jce.provider.JCEECPublicKey
  • org.bouncycastle.jce.provider.JDKKeyPairGenerator$EC
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