public void TestECDsa239BitPrime()
{
BigInteger r = new BigInteger("308636143175167811492622547300668018854959378758531778147462058306432176");
BigInteger s = new BigInteger("323813553209797357708078776831250505931891051755007842781978505179448783");
byte[] kData = new BigInteger("700000017569056646655505781757157107570501575775705779575555657156756655").ToByteArrayUnsigned();
SecureRandom k = FixedSecureRandom.From(kData);
// EllipticCurve curve = new EllipticCurve(
// new ECFieldFp(new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839")), // q
// new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
// new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECCurve curve = new FpCurve(
new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECDomainParameters spec = new ECDomainParameters(
curve,
// ECPointUtil.DecodePoint(curve, Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
curve.DecodePoint(Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307"), // n
BigInteger.One); //1); // h
ECPrivateKeyParameters sKey = new ECPrivateKeyParameters(
"ECDSA",
new BigInteger("876300101507107567501066130761671078357010671067781776716671676178726717"), // d
spec);
ECPublicKeyParameters vKey = new ECPublicKeyParameters(
"ECDSA",
// ECPointUtil.DecodePoint(curve, Hex.Decode("025b6dc53bc61a2548ffb0f671472de6c9521a9d2d2534e65abfcbd5fe0c70")), // Q
curve.DecodePoint(Hex.Decode("025b6dc53bc61a2548ffb0f671472de6c9521a9d2d2534e65abfcbd5fe0c70")), // Q
spec);
ISigner sgr = SignerUtilities.GetSigner("ECDSA");
// KeyFactory f = KeyFactory.getInstance("ECDSA");
// AsymmetricKeyParameter sKey = f.generatePrivate(priKey);
// AsymmetricKeyParameter vKey = f.generatePublic(pubKey);
sgr.Init(true, new ParametersWithRandom(sKey, k));
byte[] message = new byte[] { (byte)'a', (byte)'b', (byte)'c' };
sgr.BlockUpdate(message, 0, message.Length);
byte[] sigBytes = sgr.GenerateSignature();
sgr.Init(false, vKey);
sgr.BlockUpdate(message, 0, message.Length);
if (!sgr.VerifySignature(sigBytes))
{
Fail("239 Bit EC verification failed");
}
BigInteger[] sig = derDecode(sigBytes);
if (!r.Equals(sig[0]))
{
Fail("r component wrong." + SimpleTest.NewLine
+ " expecting: " + r + SimpleTest.NewLine
+ " got : " + sig[0]);
}
if (!s.Equals(sig[1]))
{
Fail("s component wrong." + SimpleTest.NewLine
+ " expecting: " + s + SimpleTest.NewLine
+ " got : " + sig[1]);
}
}
private void doTestECDH(
string algorithm)
{
IAsymmetricCipherKeyPairGenerator g = GeneratorUtilities.GetKeyPairGenerator(algorithm);
// EllipticCurve curve = new EllipticCurve(
// new ECFieldFp(new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839")), // q
// new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
// new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECCurve curve = new FpCurve(
new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECDomainParameters ecSpec = new ECDomainParameters(
curve,
// ECPointUtil.DecodePoint(curve, Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
curve.DecodePoint(Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307"), // n
BigInteger.One); //1); // h
// g.initialize(ecSpec, new SecureRandom());
g.Init(new ECKeyGenerationParameters(ecSpec, new SecureRandom()));
//
// a side
//
AsymmetricCipherKeyPair aKeyPair = g.GenerateKeyPair();
IBasicAgreement aKeyAgreeBasic = AgreementUtilities.GetBasicAgreement(algorithm);
aKeyAgreeBasic.Init(aKeyPair.Private);
//
// b side
//
AsymmetricCipherKeyPair bKeyPair = g.GenerateKeyPair();
IBasicAgreement bKeyAgreeBasic = AgreementUtilities.GetBasicAgreement(algorithm);
bKeyAgreeBasic.Init(bKeyPair.Private);
//
// agreement
//
// aKeyAgreeBasic.doPhase(bKeyPair.Public, true);
// bKeyAgreeBasic.doPhase(aKeyPair.Public, true);
//
// BigInteger k1 = new BigInteger(aKeyAgreeBasic.generateSecret());
// BigInteger k2 = new BigInteger(bKeyAgreeBasic.generateSecret());
BigInteger k1 = aKeyAgreeBasic.CalculateAgreement(bKeyPair.Public);
BigInteger k2 = bKeyAgreeBasic.CalculateAgreement(aKeyPair.Public);
if (!k1.Equals(k2))
{
Fail(algorithm + " 2-way test failed");
}
//
// public key encoding test
//
// byte[] pubEnc = aKeyPair.Public.GetEncoded();
byte[] pubEnc = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(aKeyPair.Public).GetDerEncoded();
// KeyFactory keyFac = KeyFactory.getInstance(algorithm);
// X509EncodedKeySpec pubX509 = new X509EncodedKeySpec(pubEnc);
// ECPublicKey pubKey = (ECPublicKey)keyFac.generatePublic(pubX509);
ECPublicKeyParameters pubKey = (ECPublicKeyParameters)PublicKeyFactory.CreateKey(pubEnc);
ECDomainParameters ecDP = pubKey.Parameters;
// if (!pubKey.getW().Equals(((ECPublicKeyParameters)aKeyPair.Public).getW()))
ECPoint pq1 = pubKey.Q.Normalize(), pq2 = ((ECPublicKeyParameters)aKeyPair.Public).Q.Normalize();
if (!pq1.Equals(pq2))
{
// Console.WriteLine(" expected " + pubKey.getW().getAffineX() + " got " + ((ECPublicKey)aKeyPair.Public).getW().getAffineX());
// Console.WriteLine(" expected " + pubKey.getW().getAffineY() + " got " + ((ECPublicKey)aKeyPair.Public).getW().getAffineY());
// Fail(algorithm + " public key encoding (W test) failed");
Console.WriteLine(" expected " + pq1.AffineXCoord.ToBigInteger()
+ " got " + pq2.AffineXCoord.ToBigInteger());
Console.WriteLine(" expected " + pq1.AffineYCoord.ToBigInteger()
+ " got " + pq2.AffineYCoord.ToBigInteger());
Fail(algorithm + " public key encoding (Q test) failed");
}
// if (!pubKey.Parameters.getGenerator().Equals(((ECPublicKeyParameters)aKeyPair.Public).Parameters.getGenerator()))
if (!pubKey.Parameters.G.Equals(((ECPublicKeyParameters)aKeyPair.Public).Parameters.G))
{
Fail(algorithm + " public key encoding (G test) failed");
}
//
// private key encoding test
//
// byte[] privEnc = aKeyPair.Private.GetEncoded();
byte[] privEnc = PrivateKeyInfoFactory.CreatePrivateKeyInfo(aKeyPair.Private).GetDerEncoded();
// PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
// ECPrivateKey privKey = (ECPrivateKey)keyFac.generatePrivate(privPKCS8);
ECPrivateKeyParameters privKey = (ECPrivateKeyParameters)PrivateKeyFactory.CreateKey(privEnc);
// if (!privKey.getS().Equals(((ECPrivateKey)aKeyPair.Private).getS()))
if (!privKey.D.Equals(((ECPrivateKeyParameters)aKeyPair.Private).D))
{
// Fail(algorithm + " private key encoding (S test) failed");
Fail(algorithm + " private key encoding (D test) failed");
}
// if (!privKey.Parameters.getGenerator().Equals(((ECPrivateKey)aKeyPair.Private).Parameters.getGenerator()))
if (!privKey.Parameters.G.Equals(((ECPrivateKeyParameters)aKeyPair.Private).Parameters.G))
{
Fail(algorithm + " private key encoding (G test) failed");
}
}
public void TestECDsa192bitPrime()
{
BigInteger r = new BigInteger("3342403536405981729393488334694600415596881826869351677613");
BigInteger s = new BigInteger("5735822328888155254683894997897571951568553642892029982342");
byte[] kData = BigIntegers.AsUnsignedByteArray(new BigInteger("6140507067065001063065065565667405560006161556565665656654"));
SecureRandom k = FixedSecureRandom.From(kData);
BigInteger n = new BigInteger("6277101735386680763835789423176059013767194773182842284081");
FpCurve curve = new FpCurve(
new BigInteger("6277101735386680763835789423207666416083908700390324961279"), // q
new BigInteger("fffffffffffffffffffffffffffffffefffffffffffffffc", 16), // a
new BigInteger("64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1", 16), // b
n, BigInteger.One);
ECDomainParameters parameters = new ECDomainParameters(
curve,
curve.DecodePoint(Hex.Decode("03188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012")), // G
n);
ECPrivateKeyParameters priKey = new ECPrivateKeyParameters(
"ECDSA",
new BigInteger("651056770906015076056810763456358567190100156695615665659"), // d
parameters);
ParametersWithRandom param = new ParametersWithRandom(priKey, k);
ECDsaSigner ecdsa = new ECDsaSigner();
ecdsa.Init(true, param);
byte[] message = new BigInteger("968236873715988614170569073515315707566766479517").ToByteArray();
BigInteger[] sig = ecdsa.GenerateSignature(message);
if (!r.Equals(sig[0]))
{
Fail("r component wrong." + SimpleTest.NewLine
+ " expecting: " + r + SimpleTest.NewLine
+ " got : " + sig[0]);
}
if (!s.Equals(sig[1]))
{
Fail("s component wrong." + SimpleTest.NewLine
+ " expecting: " + s + SimpleTest.NewLine
+ " got : " + sig[1]);
}
// Verify the signature
ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
"ECDSA",
curve.DecodePoint(Hex.Decode("0262b12d60690cdcf330babab6e69763b471f994dd702d16a5")), // Q
parameters);
ecdsa.Init(false, pubKey);
if (!ecdsa.VerifySignature(message, sig[0], sig[1]))
{
Fail("verification fails");
}
}
public void TestECDsa239bitPrime()
{
BigInteger r = new BigInteger("308636143175167811492622547300668018854959378758531778147462058306432176");
BigInteger s = new BigInteger("323813553209797357708078776831250505931891051755007842781978505179448783");
byte[] kData = BigIntegers.AsUnsignedByteArray(new BigInteger("700000017569056646655505781757157107570501575775705779575555657156756655"));
SecureRandom k = FixedSecureRandom.From(kData);
BigInteger n = new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307");
FpCurve curve = new FpCurve(
new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16), // b
n, BigInteger.One);
ECDomainParameters parameters = new ECDomainParameters(
curve,
curve.DecodePoint(Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
n);
ECPrivateKeyParameters priKey = new ECPrivateKeyParameters(
"ECDSA",
new BigInteger("876300101507107567501066130761671078357010671067781776716671676178726717"), // d
parameters);
ECDsaSigner ecdsa = new ECDsaSigner();
ParametersWithRandom param = new ParametersWithRandom(priKey, k);
ecdsa.Init(true, param);
byte[] message = new BigInteger("968236873715988614170569073515315707566766479517").ToByteArray();
BigInteger[] sig = ecdsa.GenerateSignature(message);
if (!r.Equals(sig[0]))
{
Fail("r component wrong." + SimpleTest.NewLine
+ " expecting: " + r + SimpleTest.NewLine
+ " got : " + sig[0]);
}
if (!s.Equals(sig[1]))
{
Fail("s component wrong." + SimpleTest.NewLine
+ " expecting: " + s + SimpleTest.NewLine
+ " got : " + sig[1]);
}
// Verify the signature
ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
"ECDSA",
curve.DecodePoint(Hex.Decode("025b6dc53bc61a2548ffb0f671472de6c9521a9d2d2534e65abfcbd5fe0c70")), // Q
parameters);
ecdsa.Init(false, pubKey);
if (!ecdsa.VerifySignature(message, sig[0], sig[1]))
{
Fail("signature fails");
}
}
public void TestGeneration()
{
ISigner s = SignerUtilities.GetSigner("DSA");
byte[] data = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
SecureRandom rand = new SecureRandom();
// KeyPairGenerator g = KeyPairGenerator.GetInstance("DSA");
IAsymmetricCipherKeyPairGenerator g = GeneratorUtilities.GetKeyPairGenerator("DSA");
// test exception
//
doTestBadStrength(513);
doTestBadStrength(510);
doTestBadStrength(1025);
//g.initialize(512, rand);
{
DsaParametersGenerator pGen = new DsaParametersGenerator();
pGen.Init(512, 80, rand);
g.Init(new DsaKeyGenerationParameters(rand, pGen.GenerateParameters()));
}
AsymmetricCipherKeyPair p = g.GenerateKeyPair();
AsymmetricKeyParameter sKey = p.Private;
AsymmetricKeyParameter vKey = p.Public;
s.Init(true, sKey);
s.BlockUpdate(data, 0, data.Length);
byte[] sigBytes = s.GenerateSignature();
s = SignerUtilities.GetSigner("DSA");
s.Init(false, vKey);
s.BlockUpdate(data, 0, data.Length);
if (!s.VerifySignature(sigBytes))
{
Fail("DSA verification failed");
}
//
// ECDSA Fp generation test
//
s = SignerUtilities.GetSigner("ECDSA");
ECCurve curve = new FpCurve(
new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECDomainParameters ecSpec = new ECDomainParameters(
curve,
curve.DecodePoint(Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307")); // n
g = GeneratorUtilities.GetKeyPairGenerator("ECDSA");
g.Init(new ECKeyGenerationParameters(ecSpec, rand));
p = g.GenerateKeyPair();
sKey = p.Private;
vKey = p.Public;
s.Init(true, sKey);
s.BlockUpdate(data, 0, data.Length);
sigBytes = s.GenerateSignature();
s = SignerUtilities.GetSigner("ECDSA");
s.Init(false, vKey);
s.BlockUpdate(data, 0, data.Length);
if (!s.VerifySignature(sigBytes))
{
Fail("ECDSA verification failed");
}
//
// ECDSA F2m generation test
//
s = SignerUtilities.GetSigner("ECDSA");
curve = new F2mCurve(
239, // m
36, // k
new BigInteger("32010857077C5431123A46B808906756F543423E8D27877578125778AC76", 16), // a
new BigInteger("790408F2EEDAF392B012EDEFB3392F30F4327C0CA3F31FC383C422AA8C16", 16)); // b
ecSpec = new ECDomainParameters(
curve,
curve.DecodePoint(Hex.Decode("0457927098FA932E7C0A96D3FD5B706EF7E5F5C156E16B7E7C86038552E91D61D8EE5077C33FECF6F1A16B268DE469C3C7744EA9A971649FC7A9616305")), // G
new BigInteger("220855883097298041197912187592864814557886993776713230936715041207411783"), // n
BigInteger.ValueOf(4)); // h
g = GeneratorUtilities.GetKeyPairGenerator("ECDSA");
g.Init(new ECKeyGenerationParameters(ecSpec, rand));
p = g.GenerateKeyPair();
sKey = p.Private;
vKey = p.Public;
s.Init(true, sKey);
s.BlockUpdate(data, 0, data.Length);
sigBytes = s.GenerateSignature();
s = SignerUtilities.GetSigner("ECDSA");
s.Init(false, vKey);
s.BlockUpdate(data, 0, data.Length);
if (!s.VerifySignature(sigBytes))
{
Fail("ECDSA verification failed");
}
}
public override void PerformTest()
{
generationTest(512, "RSA", "SHA1withRSA");
generationTest(512, "GOST3410", "GOST3411withGOST3410");
// if (Security.getProvider("SunRsaSign") != null)
// {
// generationTest(512, "RSA", "SHA1withRSA", "SunRsaSign");
// }
// elliptic curve GOST A parameter set
Pkcs10CertificationRequest req = new Pkcs10CertificationRequest(gost3410EC_A);
if (!req.Verify())
{
Fail("Failed Verify check gost3410EC_A.");
}
// elliptic curve GOST B parameter set
req = new Pkcs10CertificationRequest(gost3410EC_B);
if (!req.Verify())
{
Fail("Failed Verify check gost3410EC_B.");
}
// elliptic curve GOST C parameter set
req = new Pkcs10CertificationRequest(gost3410EC_C);
if (!req.Verify())
{
Fail("Failed Verify check gost3410EC_C.");
}
// elliptic curve GOST ExA parameter set
req = new Pkcs10CertificationRequest(gost3410EC_ExA);
if (!req.Verify())
{
Fail("Failed Verify check gost3410EC_ExA.");
}
// elliptic curve GOST ExB parameter set
req = new Pkcs10CertificationRequest(gost3410EC_ExB);
if (!req.Verify())
{
Fail("Failed Verify check gost3410EC_ExA.");
}
// elliptic curve openSSL
IAsymmetricCipherKeyPairGenerator g = GeneratorUtilities.GetKeyPairGenerator("ECDSA");
ECCurve curve = new FpCurve(
new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECDomainParameters ecSpec = new ECDomainParameters(
curve,
curve.DecodePoint(Hex.Decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307")); // n
// g.initialize(ecSpec, new SecureRandom());
g.Init(new ECKeyGenerationParameters(ecSpec, new SecureRandom()));
AsymmetricCipherKeyPair kp = g.GenerateKeyPair();
req = new Pkcs10CertificationRequest(
"ECDSAWITHSHA1", new X509Name("CN=XXX"), kp.Public, null, kp.Private);
if (!req.Verify())
{
Fail("Failed Verify check EC.");
}
createECRequest("SHA1withECDSA", X9ObjectIdentifiers.ECDsaWithSha1);
createECRequest("SHA224withECDSA", X9ObjectIdentifiers.ECDsaWithSha224);
createECRequest("SHA256withECDSA", X9ObjectIdentifiers.ECDsaWithSha256);
createECRequest("SHA384withECDSA", X9ObjectIdentifiers.ECDsaWithSha384);
createECRequest("SHA512withECDSA", X9ObjectIdentifiers.ECDsaWithSha512);
createECGostRequest();
// TODO The setting of parameters for MGF algorithms is not implemented
// createPssTest("SHA1withRSAandMGF1");
// createPssTest("SHA224withRSAandMGF1");
// createPssTest("SHA256withRSAandMGF1");
// createPssTest("SHA384withRSAandMGF1");
nullPointerTest();
}
/*
* we generate a self signed certificate for the sake of testing - SHA224withECDSA
*/
private void createECRequest(
string algorithm,
DerObjectIdentifier algOid)
{
FpCurve curve = new FpCurve(
new BigInteger("6864797660130609714981900799081393217269435300143305409394463459185543183397656052122559640661454554977296311391480858037121987999716643812574028291115057151"), // q (or p)
new BigInteger("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC", 16), // a
new BigInteger("0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00", 16)); // b
ECDomainParameters spec = new ECDomainParameters(
curve,
// curve.DecodePoint(Hex.Decode("02C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66")), // G
curve.DecodePoint(Hex.Decode("0200C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66")), // G
new BigInteger("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409", 16)); // n
ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(
new BigInteger("5769183828869504557786041598510887460263120754767955773309066354712783118202294874205844512909370791582896372147797293913785865682804434049019366394746072023"), // d
spec);
ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
// curve.DecodePoint(Hex.Decode("026BFDD2C9278B63C92D6624F151C9D7A822CC75BD983B17D25D74C26740380022D3D8FAF304781E416175EADF4ED6E2B47142D2454A7AC7801DD803CF44A4D1F0AC")), // Q
curve.DecodePoint(Hex.Decode("02006BFDD2C9278B63C92D6624F151C9D7A822CC75BD983B17D25D74C26740380022D3D8FAF304781E416175EADF4ED6E2B47142D2454A7AC7801DD803CF44A4D1F0AC")), // Q
spec);
// //
// // set up the keys
// //
// AsymmetricKeyParameter privKey;
// AsymmetricKeyParameter pubKey;
//
// KeyFactory fact = KeyFactory.getInstance("ECDSA");
//
// privKey = fact.generatePrivate(privKeySpec);
// pubKey = fact.generatePublic(pubKeySpec);
Pkcs10CertificationRequest req = new Pkcs10CertificationRequest(
algorithm, new X509Name("CN=XXX"), pubKey, null, privKey);
if (!req.Verify())
{
Fail("Failed Verify check EC.");
}
req = new Pkcs10CertificationRequest(req.GetEncoded());
if (!req.Verify())
{
Fail("Failed Verify check EC encoded.");
}
//
// try with point compression turned off
//
// ((ECPointEncoder)pubKey).setPointFormat("UNCOMPRESSED");
ECPoint q = pubKey.Q.Normalize();
pubKey = new ECPublicKeyParameters(
pubKey.AlgorithmName,
q.Curve.CreatePoint(q.XCoord.ToBigInteger(), q.YCoord.ToBigInteger()),
pubKey.Parameters);
req = new Pkcs10CertificationRequest(
algorithm, new X509Name("CN=XXX"), pubKey, null, privKey);
if (!req.Verify())
{
Fail("Failed Verify check EC uncompressed.");
}
req = new Pkcs10CertificationRequest(req.GetEncoded());
if (!req.Verify())
{
Fail("Failed Verify check EC uncompressed encoded.");
}
if (!req.SignatureAlgorithm.Algorithm.Equals(algOid))
{
Fail("ECDSA oid incorrect.");
}
if (req.SignatureAlgorithm.Parameters != null)
{
Fail("ECDSA parameters incorrect.");
}
ISigner sig = SignerUtilities.GetSigner(algorithm);
sig.Init(false, pubKey);
byte[] b = req.GetCertificationRequestInfo().GetEncoded();
sig.BlockUpdate(b, 0, b.Length);
if (!sig.VerifySignature(req.GetSignatureOctets()))
{
Fail("signature not mapped correctly.");
}
}