Package org.bouncycastle.math.ec

Examples of org.bouncycastle.math.ec.ECCurve

247
248
249
250
251
252
253
254
255
256
257
            params = new X962Parameters(DERNull.INSTANCE);
        }
        else
        {
            ECField field = ecSpec.getCurve().getField();
            ECCurve curve;
            org.bouncycastle.math.ec.ECPoint ecPoint;

            if (field instanceof ECFieldFp)
            {
                curve = new ECCurve.Fp(((ECFieldFp)field).getP(), ecSpec.getCurve().getA(), ecSpec.getCurve().getB());
View Full Code Here
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
        }
       
        // elliptic curve openSSL
        KeyPairGenerator g = KeyPairGenerator.getInstance("ECDSA", "BC");

        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

        g.initialize(ecSpec, new SecureRandom());

        KeyPair kp = g.generateKeyPair();
View Full Code Here
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
    /**
     * we generate a self signed certificate for the sake of testing - ECDSA
     */
    public void checkCreation3()
    {
        ECCurve curve = new ECCurve.Fp(
            new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
            new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
            new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b

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

        ECPrivateKeySpec privKeySpec = new ECPrivateKeySpec(
            new BigInteger("876300101507107567501066130761671078357010671067781776716671676178726717"), // d
            spec);

        ECPublicKeySpec pubKeySpec = new ECPublicKeySpec(
            curve.decodePoint(Hex.decode("025b6dc53bc61a2548ffb0f671472de6c9521a9d2d2534e65abfcbd5fe0c70")), // Q
            spec);

        //
        // set up the keys
        //
View Full Code Here
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
            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)
                {
View Full Code Here
93
94
95
96
97
98
99
100
101
102
103
    public static org.bouncycastle.jce.spec.ECParameterSpec convertSpec(
        ECParameterSpec ecSpec,
        boolean withCompression)
    {
        ECCurve curve = convertCurve(ecSpec.getCurve());

        return new org.bouncycastle.jce.spec.ECParameterSpec(
            curve,
            convertPoint(curve, ecSpec.getGenerator(), withCompression),
            ecSpec.getOrder(),
View Full Code Here
91
92
93
94
95
96
97
98
99
100
101
    public static org.bouncycastle.jce.spec.ECParameterSpec convertSpec(
        ECParameterSpec ecSpec,
        boolean withCompression)
    {
        ECCurve curve = convertCurve(ecSpec.getCurve());

        return new org.bouncycastle.jce.spec.ECParameterSpec(
            curve,
            convertPoint(curve, ecSpec.getGenerator(), withCompression),
            ecSpec.getOrder(),
View Full Code Here
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
            else if (params instanceof java.security.spec.ECParameterSpec)
            {
                java.security.spec.ECParameterSpec p = (java.security.spec.ECParameterSpec)params;
                this.ecParams = params;

                ECCurve curve = EC5Util.convertCurve(p.getCurve());
                ECPoint g = EC5Util.convertPoint(curve, p.getGenerator(), 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)
            {
                final String curveName = ((ECGenParameterSpec)params).getName();

                if (this.algorithm.equals("ECGOST3410"))
                {
                    ECDomainParameters  ecP = ECGOST3410NamedCurves.getByName(curveName);
                    if (ecP == null)
                    {
                        throw new InvalidAlgorithmParameterException("unknown curve name: " + curveName);
                    }

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

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

                java.security.spec.ECParameterSpec p = (java.security.spec.ECParameterSpec)ecParams;

                ECCurve curve = EC5Util.convertCurve(p.getCurve());
                ECPoint g = EC5Util.convertPoint(curve, p.getGenerator(), false);

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

                engine.init(param);
View Full Code Here
73
74
75
76
77
78
79
80
81
82
83
        this.algorithm = algorithm;
        this.q = spec.getQ();

        if (spec.getParams() != null) // can be null if implictlyCa
        {
            ECCurve curve = spec.getParams().getCurve();
            EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getParams().getSeed());

            this.ecSpec = EC5Util.convertSpec(ellipticCurve, spec.getParams());
        }
        else
View Full Code Here
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
            gostParams = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
           
            ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));

            ECCurve curve = spec.getCurve();
            EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());

            this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);

            ecSpec = new ECNamedCurveSpec(
                    ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()),
                    ellipticCurve,
                    new ECPoint(
                            spec.getG().getX().toBigInteger(),
                            spec.getG().getY().toBigInteger()),
                            spec.getN(), spec.getH());

        }
        else
        {
            X962Parameters          params = new X962Parameters((DERObject)info.getAlgorithmId().getParameters());
            ECCurve                 curve;
            EllipticCurve           ellipticCurve;
           
            if (params.isNamedCurve())
            {
                DERObjectIdentifier oid = (DERObjectIdentifier)params.getParameters();
View Full Code Here
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
            {
                params = new X962Parameters(DERNull.INSTANCE);
            }
            else
            {
                ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());

                X9ECParameters ecP = new X9ECParameters(
                    curve,
                    EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
                    ecSpec.getOrder(),
                    BigInteger.valueOf(ecSpec.getCofactor()),
                    ecSpec.getCurve().getSeed());

                params = new X962Parameters(ecP);
            }

            ECCurve curve = this.engineGetQ().getCurve();
            ASN1OctetString p = (ASN1OctetString)
                new X9ECPoint(curve.createPoint(this.getQ().getX().toBigInteger(), this.getQ().getY().toBigInteger(), withCompression)).getDERObject();

            info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
        }

        return info.getDEREncoded();
View Full Code Here
TOP

Related Classes of org.bouncycastle.math.ec.ECCurve

  • com.nimbusds.jose.crypto.ECDSAVerifier
  • org.bouncycastle.crypto.tls.TlsECCUtils
  • org.bouncycastle.jcajce.provider.asymmetric.dstu.BCDSTU4145PrivateKey
  • org.bouncycastle.jcajce.provider.asymmetric.dstu.BCDSTU4145PublicKey
  • org.bouncycastle.jcajce.provider.asymmetric.dstu.KeyPairGeneratorSpi
  • org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPrivateKey
  • org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey
  • org.bouncycastle.jcajce.provider.asymmetric.ec.KeyPairGeneratorSpi$EC
  • org.bouncycastle.jcajce.provider.asymmetric.ecgost.BCECGOST3410PrivateKey
  • org.bouncycastle.jcajce.provider.asymmetric.ecgost.BCECGOST3410PublicKey
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.