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Java X9ECParameters.getCurve方法代碼示例

本文整理匯總了Java中org.bouncycastle.asn1.x9.X9ECParameters.getCurve方法的典型用法代碼示例。如果您正苦於以下問題：Java X9ECParameters.getCurve方法的具體用法？Java X9ECParameters.getCurve怎麽用？Java X9ECParameters.getCurve使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.bouncycastle.asn1.x9.X9ECParameters的用法示例。


在下文中一共展示了X9ECParameters.getCurve方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: getParameterSpec

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
/**
 * return a parameter spec representing the passed in named
 * curve. The routine returns null if the curve is not present.
 * 
 * @param name the name of the curve requested
 * @return a parameter spec for the curve, null if it is not available.
 */
public static ECNamedCurveParameterSpec getParameterSpec(
    String  name)
{
    X9ECParameters  ecP = X962NamedCurves.getByName(name);
    if (ecP == null)
    {
        return null;
    }

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

}
開發者ID:thangbn，項目名稱:Direct-File-Downloader，代碼行數:26，代碼來源:ECNamedCurveTable.java

示例2: getParametersForNamedCurve

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
public static ECDomainParameters getParametersForNamedCurve(int namedCurve)
{
    String curveName = getNameOfNamedCurve(namedCurve);
    if (curveName == null)
    {
        return null;
    }

    // Lazily created the first time a particular curve is accessed
    X9ECParameters ecP = SECNamedCurves.getByName(curveName);

    if (ecP == null)
    {
        return null;
    }

    // It's a bit inefficient to do this conversion every time
    return new ECDomainParameters(ecP.getCurve(), ecP.getG(), ecP.getN(), ecP.getH(), ecP.getSeed());
}
開發者ID:Appdome，項目名稱:ipack，代碼行數:20，代碼來源:TlsECCUtils.java

示例3: getParametersForNamedCurve

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
public static ECDomainParameters getParametersForNamedCurve(int namedCurve)
{
    String curveName = getNameOfNamedCurve(namedCurve);
    if (curveName == null)
    {
        return null;
    }

    // Parameters are lazily created the first time a particular curve is accessed

    X9ECParameters ecP = CustomNamedCurves.getByName(curveName);
    if (ecP == null)
    {
        ecP = ECNamedCurveTable.getByName(curveName);
        if (ecP == null)
        {
            return null;
        }
    }

    // It's a bit inefficient to do this conversion every time
    return new ECDomainParameters(ecP.getCurve(), ecP.getG(), ecP.getN(), ecP.getH(), ecP.getSeed());
}
開發者ID:ttt43ttt，項目名稱:gwt-crypto，代碼行數:24，代碼來源:TlsECCUtils.java

示例4: ECDSAgeneratePublicAndPrivateKey

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
/*************
 * This method will create the ECDSA public and private key which is returned in a Byte array of Byte arrays, index 0 is the private key and
 * index 1 of the array will return the ECDSA public key
 * 
 * -Wisdom: This guy didn't check whether the returned Private Key would be more than 32.
 * @return
 
 */
private byte[][] ECDSAgeneratePublicAndPrivateKey(){
       int length = 0;
       byte[][] keys;
       
    do{
        
	ECKeyPairGenerator gen = new ECKeyPairGenerator();
	SecureRandom secureRandom = new SecureRandom();
        X9ECParameters secnamecurves = SECNamedCurves.getByName("secp256k1");
	ECDomainParameters ecParams = new ECDomainParameters(secnamecurves.getCurve(), secnamecurves.getG(), secnamecurves.getN(), secnamecurves.getH());
	ECKeyGenerationParameters keyGenParam = new ECKeyGenerationParameters(ecParams, secureRandom);
	gen.init(keyGenParam);
	AsymmetricCipherKeyPair kp = gen.generateKeyPair();
	ECPrivateKeyParameters privatekey = (ECPrivateKeyParameters)kp.getPrivate();
	ECPoint dd = secnamecurves.getG().multiply(privatekey.getD());
	byte[] publickey=new byte[65];
	System.arraycopy(dd.getY().toBigInteger().toByteArray(), 0, publickey, 64-dd.getY().toBigInteger().toByteArray().length+1, dd.getY().toBigInteger().toByteArray().length);
	System.arraycopy(dd.getX().toBigInteger().toByteArray(), 0, publickey, 32-dd.getX().toBigInteger().toByteArray().length+1, dd.getX().toBigInteger().toByteArray().length);
	publickey[0]=4;
        length = privatekey.getD().toByteArray().length;
        keys = new byte[][]{privatekey.getD().toByteArray(),publickey};
        
    }while(length != 32);
	return keys;
}
開發者ID:wisdomcsharp，項目名稱:SSI_Bitcoin-Storage，代碼行數:34，代碼來源:Address.java

示例5: discoverEndomorphisms

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
public static void discoverEndomorphisms(X9ECParameters x9)
{
    if (x9 == null)
    {
        throw new NullPointerException("x9");
    }

    ECCurve c = x9.getCurve();
    if (ECAlgorithms.isFpCurve(c))
    {
        BigInteger characteristic = c.getField().getCharacteristic();

        if (c.getA().isZero() && characteristic.mod(ECConstants.THREE).equals(ECConstants.ONE))
        {
            System.out.println("Curve has a 'GLV Type B' endomorphism with these parameters:");
            printGLVTypeBParameters(x9);
        }
    }
}
開發者ID:thedrummeraki，項目名稱:Aki-SSL，代碼行數:20，代碼來源:DiscoverEndomorphisms.java

示例6: signAndFromatToRS

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
/**
 * UAF_ALG_SIGN_SECP256R1_ECDSA_SHA256_RAW 0x01 An ECDSA signature on the
 * NIST secp256r1 curve which MUST have raw R and S buffers, encoded in
 * big-endian order. I.e. [R (32 bytes), S (32 bytes)]
 * 
 * @param priv
 *            - Private key
 * @param input
 *            - Data to sign
 * @return BigInteger[] - [R,S]
 */
public static BigInteger[] signAndFromatToRS(PrivateKey priv, byte[] input) {
	X9ECParameters params = SECNamedCurves.getByName("secp256r1");
	ECDomainParameters ecParams = new ECDomainParameters(params.getCurve(),
			params.getG(), params.getN(), params.getH());
	if (priv == null)
		throw new IllegalStateException(
				"This ECKey does not have the private key necessary for signing.");
	ECDSASigner signer = new ECDSASigner();
	ECPrivateKeyParameters privKey = new ECPrivateKeyParameters(
			((ECPrivateKey) priv).getS(), ecParams);
	signer.init(true, privKey);
	BigInteger[] sigs = signer.generateSignature(input);
	return sigs;
}
開發者ID:zsavvas，項目名稱:ReCRED_FIDO_UAF_OIDC，代碼行數:26，代碼來源:NamedCurve.java

示例7: verify

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
public static boolean verify(byte[] pub, byte[] dataForSigning,
		BigInteger[] rs) throws Exception {
	ECDSASigner signer = new ECDSASigner();
	X9ECParameters params = SECNamedCurves.getByName("secp256r1");
	ECDomainParameters ecParams = new ECDomainParameters(params.getCurve(),
			params.getG(), params.getN(), params.getH());
	ECPublicKeyParameters pubKeyParams = new ECPublicKeyParameters(ecParams
			.getCurve().decodePoint(pub), ecParams);
	signer.init(false, pubKeyParams);

	return signer.verifySignature(dataForSigning, rs[0].abs(), rs[1].abs());
}
開發者ID:zsavvas，項目名稱:ReCRED_FIDO_UAF_OIDC，代碼行數:13，代碼來源:NamedCurve.java

示例8: verifyUsingSecp256k1

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
public static boolean verifyUsingSecp256k1(byte[] pub, byte[] dataForSigning,
		BigInteger[] rs) throws Exception {
	ECDSASigner signer = new ECDSASigner();
	X9ECParameters params = SECNamedCurves.getByName("secp256k1");
	ECDomainParameters ecParams = new ECDomainParameters(params.getCurve(),
			params.getG(), params.getN(), params.getH());
	ECPublicKeyParameters pubKeyParams = new ECPublicKeyParameters(ecParams
			.getCurve().decodePoint(pub), ecParams);
	signer.init(false, pubKeyParams);

	return signer.verifySignature(dataForSigning, rs[0].abs(), rs[1].abs());
}
開發者ID:zsavvas，項目名稱:ReCRED_FIDO_UAF_OIDC，代碼行數:13，代碼來源:NamedCurve.java

示例9: setUpClass

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
@BeforeClass
public static void setUpClass() throws CoseException {

    X9ECParameters p = NISTNamedCurves.getByName("P-256");
    
    ECDomainParameters parameters = new ECDomainParameters(p.getCurve(), p.getG(), p.getN(), p.getH());
    ECKeyPairGenerator pGen = new ECKeyPairGenerator();
    ECKeyGenerationParameters genParam = new ECKeyGenerationParameters(parameters, null);
    pGen.init(genParam);
    
    AsymmetricCipherKeyPair p1 = pGen.generateKeyPair();
    
    keyPublic = (ECPublicKeyParameters) p1.getPublic();
    keyPrivate = (ECPrivateKeyParameters) p1.getPrivate();
    
byte[] rgbX = keyPublic.getQ().normalize().getXCoord().getEncoded();
byte[] rgbY = keyPublic.getQ().normalize().getYCoord().getEncoded();
boolean signY = true;
byte[] rgbD = keyPrivate.getD().toByteArray();

CBORObject key = CBORObject.NewMap();
    key.Add(KeyKeys.KeyType.AsCBOR(), KeyKeys.KeyType_EC2);
    key.Add(KeyKeys.EC2_Curve.AsCBOR(), KeyKeys.EC2_P256);
    key.Add(KeyKeys.EC2_X.AsCBOR(), rgbX);
    key.Add(KeyKeys.EC2_Y.AsCBOR(), rgbY);
    cnKeyPublic = new OneKey(key);
    
    key = CBORObject.NewMap();
    key.Add(KeyKeys.KeyType.AsCBOR(), KeyKeys.KeyType_EC2);
    key.Add(KeyKeys.EC2_Curve.AsCBOR(), KeyKeys.EC2_P256);
    key.Add(KeyKeys.EC2_X.AsCBOR(), rgbX);
    key.Add(KeyKeys.EC2_Y.AsCBOR(), rgbY);
    cnKeyPublicCompressed = new OneKey(key);

    key = CBORObject.NewMap();
    key.Add(KeyKeys.KeyType.AsCBOR(), KeyKeys.KeyType_EC2);
    key.Add(KeyKeys.EC2_Curve.AsCBOR(), KeyKeys.EC2_P256);
    key.Add(KeyKeys.EC2_D.AsCBOR(), rgbD);
    cnKeyPrivate = new OneKey(key);
}
開發者ID:cose-wg，項目名稱:COSE-JAVA，代碼行數:41，代碼來源:Sign1MessageTest.java

示例10: createNamedCurveSpec

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
protected ECNamedCurveSpec createNamedCurveSpec(String curveName)
    throws InvalidAlgorithmParameterException
{
    // NOTE: Don't bother with custom curves here as the curve will be converted to JCE type shortly

    X9ECParameters p = ECUtils.getDomainParametersFromName(curveName);
    if (p == null)
    {
        try
        {
            // Check whether it's actually an OID string (SunJSSE ServerHandshaker setupEphemeralECDHKeys bug)
            p = ECNamedCurveTable.getByOID(new ASN1ObjectIdentifier(curveName));
            if (p == null)
            {
                throw new InvalidAlgorithmParameterException("unknown curve OID: " + curveName);
            }
        }
        catch (IllegalArgumentException ex)
        {
            throw new InvalidAlgorithmParameterException("unknown curve name: " + curveName);
        }
    }

    // Work-around for JDK bug -- it won't look up named curves properly if seed is present
    byte[] seed = null; //p.getSeed();

    return new ECNamedCurveSpec(curveName, p.getCurve(), p.getG(), p.getN(), p.getH(), seed);
}
開發者ID:thedrummeraki，項目名稱:Aki-SSL，代碼行數:29，代碼來源:KeyPairGeneratorSpi.java

示例11: generateECPublicKey

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
public static AsymmetricCipherKeyPair generateECPublicKey() {

        // Should we also generate random curves?
        X9ECParameters ecp = SECNamedCurves.getByName(getRandomCurveName());
        ECKeyPairGenerator keygen = new ECKeyPairGenerator();
        ECDomainParameters domainParams = new ECDomainParameters(ecp.getCurve(), ecp.getG(), ecp.getN(), ecp.getH(),
                ecp.getSeed());
        keygen.init(new ECKeyGenerationParameters(domainParams, RandomHelper.getBadSecureRandom()));
        return keygen.generateKeyPair();
    }
開發者ID:RUB-NDS，項目名稱:TLS-Attacker，代碼行數:11，代碼來源:RandomKeyGeneratorHelper.java

示例12: generateECDSAKey

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
static private OneKey generateECDSAKey(String curveName, CBORObject curve) {                
    X9ECParameters p = NISTNamedCurves.getByName(curveName);
    
    ECDomainParameters parameters = new ECDomainParameters(p.getCurve(), p.getG(), p.getN(), p.getH());
    ECKeyPairGenerator pGen = new ECKeyPairGenerator();
    ECKeyGenerationParameters genParam = new ECKeyGenerationParameters(parameters, null);
    pGen.init(genParam);

    AsymmetricCipherKeyPair p1 = pGen.generateKeyPair();

    ECPublicKeyParameters keyPublic = (ECPublicKeyParameters) p1.getPublic();
    ECPrivateKeyParameters keyPrivate = (ECPrivateKeyParameters) p1.getPrivate();

    byte[] rgbX = keyPublic.getQ().normalize().getXCoord().getEncoded();
    byte[] rgbY = keyPublic.getQ().normalize().getYCoord().getEncoded();
    boolean signY = true;
    byte[] rgbD = keyPrivate.getD().toByteArray();

    OneKey key = new OneKey();

    key.add(KeyKeys.KeyType, KeyKeys.KeyType_EC2);
    key.add(KeyKeys.EC2_Curve, curve);
    key.add(KeyKeys.EC2_X, CBORObject.FromObject(rgbX));
    key.add(KeyKeys.EC2_Y, CBORObject.FromObject(rgbY));
    key.add(KeyKeys.EC2_D, CBORObject.FromObject(rgbD));

    return key;        
}
開發者ID:cose-wg，項目名稱:COSE-JAVA，代碼行數:29，代碼來源:OneKey.java

示例13: testECMQVTestVector1

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
private void testECMQVTestVector1()
{
    // Test Vector from GEC-2

    X9ECParameters x9 = SECNamedCurves.getByName("secp160r1");
    ECDomainParameters p = new ECDomainParameters(
        x9.getCurve(), x9.getG(), x9.getN(), x9.getH(), x9.getSeed());

    AsymmetricCipherKeyPair U1 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("0251B4496FECC406ED0E75A24A3C03206251419DC0")), p),
        new ECPrivateKeyParameters(
            new BigInteger("AA374FFC3CE144E6B073307972CB6D57B2A4E982", 16), p));

    AsymmetricCipherKeyPair U2 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("03D99CE4D8BF52FA20BD21A962C6556B0F71F4CA1F")), p),
        new ECPrivateKeyParameters(
            new BigInteger("149EC7EA3A220A887619B3F9E5B4CA51C7D1779C", 16), p));

    AsymmetricCipherKeyPair V1 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("0349B41E0E9C0369C2328739D90F63D56707C6E5BC")), p),
        new ECPrivateKeyParameters(
            new BigInteger("45FB58A92A17AD4B15101C66E74F277E2B460866", 16), p));

    AsymmetricCipherKeyPair V2 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("02706E5D6E1F640C6E9C804E75DBC14521B1E5F3B5")), p),
        new ECPrivateKeyParameters(
            new BigInteger("18C13FCED9EADF884F7C595C8CB565DEFD0CB41E", 16), p));

    BigInteger x = calculateAgreement(U1, U2, V1, V2);

    if (x == null
        || !x.equals(new BigInteger("5A6955CEFDB4E43255FB7FCF718611E4DF8E05AC", 16)))
    {
        fail("MQV Test Vector #1 agreement failed");
    }
}
開發者ID:ttt43ttt，項目名稱:gwt-crypto，代碼行數:41，代碼來源:ECTest.java

示例14: testECMQVTestVector2

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
private void testECMQVTestVector2()
{
    // Test Vector from GEC-2

    X9ECParameters x9 = SECNamedCurves.getByName("sect163k1");
    ECDomainParameters p = new ECDomainParameters(
        x9.getCurve(), x9.getG(), x9.getN(), x9.getH(), x9.getSeed());

    AsymmetricCipherKeyPair U1 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("03037D529FA37E42195F10111127FFB2BB38644806BC")), p),
        new ECPrivateKeyParameters(
            new BigInteger("03A41434AA99C2EF40C8495B2ED9739CB2155A1E0D", 16), p));

    AsymmetricCipherKeyPair U2 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("02015198E74BC2F1E5C9A62B80248DF0D62B9ADF8429")), p),
        new ECPrivateKeyParameters(
            new BigInteger("032FC4C61A8211E6A7C4B8B0C03CF35F7CF20DBD52", 16), p));

    AsymmetricCipherKeyPair V1 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("03072783FAAB9549002B4F13140B88132D1C75B3886C")), p),
        new ECPrivateKeyParameters(
            new BigInteger("57E8A78E842BF4ACD5C315AA0569DB1703541D96", 16), p));

    AsymmetricCipherKeyPair V2 = new AsymmetricCipherKeyPair(
        new ECPublicKeyParameters(
            p.getCurve().decodePoint(Hex.decode("03067E3AEA3510D69E8EDD19CB2A703DDC6CF5E56E32")), p),
        new ECPrivateKeyParameters(
            new BigInteger("02BD198B83A667A8D908EA1E6F90FD5C6D695DE94F", 16), p));

    BigInteger x = calculateAgreement(U1, U2, V1, V2);

    if (x == null
        || !x.equals(new BigInteger("038359FFD30C0D5FC1E6154F483B73D43E5CF2B503", 16)))
    {
        fail("MQV Test Vector #2 agreement failed");
    }
}
開發者ID:ttt43ttt，項目名稱:gwt-crypto，代碼行數:41，代碼來源:ECTest.java

示例15: ECDH_GenerateEphemeral

import org.bouncycastle.asn1.x9.X9ECParameters; //導入方法依賴的package包/類
private void ECDH_GenerateEphemeral() throws CoseException
{
    X9ECParameters p = privateKey.GetCurve();
    ECDomainParameters parameters = new ECDomainParameters(p.getCurve(), p.getG(), p.getN(), p.getH());

    ECKeyPairGenerator pGen = new ECKeyPairGenerator();
    ECKeyGenerationParameters genParam = new ECKeyGenerationParameters(parameters, null);
    pGen.init(genParam);

    AsymmetricCipherKeyPair p1 = pGen.generateKeyPair();

    CBORObject epk = CBORObject.NewMap();
    epk.Add(KeyKeys.KeyType.AsCBOR(), KeyKeys.KeyType_EC2);
    epk.Add(KeyKeys.EC2_Curve.AsCBOR(), privateKey.get(KeyKeys.EC2_Curve.AsCBOR()));
    ECPublicKeyParameters priv = (ECPublicKeyParameters) p1.getPublic();

    byte[] rgbEncoded = priv.getQ().normalize().getEncoded(true);
    byte[] X = new byte[rgbEncoded.length - 1];
    System.arraycopy(rgbEncoded, 1, X, 0, X.length);
    epk.Add(KeyKeys.EC2_X.AsCBOR(), CBORObject.FromObject(X));
    epk.Add(KeyKeys.EC2_Y.AsCBOR(), CBORObject.FromObject((rgbEncoded[0] & 1) == 1));
    addAttribute(HeaderKeys.ECDH_EPK, epk, Attribute.UNPROTECTED);
    
    OneKey secretKey = new OneKey();
    secretKey.add(KeyKeys.KeyType, KeyKeys.KeyType_EC2);
    secretKey.add(KeyKeys.EC2_Curve, privateKey.get(KeyKeys.EC2_Curve.AsCBOR()));
    secretKey.add(KeyKeys.EC2_X, CBORObject.FromObject(X));
    secretKey.add(KeyKeys.EC2_Y, CBORObject.FromObject((rgbEncoded[0] & 1) == 1));
    ECPrivateKeyParameters priv1 = (ECPrivateKeyParameters) p1.getPrivate();
    secretKey.add(KeyKeys.EC2_D, CBORObject.FromObject(BigIntegers.asUnsignedByteArray( priv1.getD())));
    
    senderKey = secretKey;
}
開發者ID:cose-wg，項目名稱:COSE-JAVA，代碼行數:34，代碼來源:Recipient.java


注：本文中的org.bouncycastle.asn1.x9.X9ECParameters.getCurve方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。