java.security.spec.ECParameterSpec源码实例Demo-ICode联盟

类java.security.spec.ECParameterSpec源码实例Demo

下面列出了怎么用java.security.spec.ECParameterSpec的API类实例代码及写法，或者点击链接到github查看源代码。

源代码1 项目： jdk8u-jdk 文件： ECKeyPairGenerator.java

@Override
public void initialize(AlgorithmParameterSpec params, SecureRandom random)
        throws InvalidAlgorithmParameterException {

    if (params instanceof ECParameterSpec) {
        this.params = ECUtil.getECParameterSpec(null,
                                                (ECParameterSpec)params);
        if (this.params == null) {
            throw new InvalidAlgorithmParameterException(
                "Unsupported curve: " + params);
        }
    } else if (params instanceof ECGenParameterSpec) {
        String name = ((ECGenParameterSpec)params).getName();
        this.params = ECUtil.getECParameterSpec(null, name);
        if (this.params == null) {
            throw new InvalidAlgorithmParameterException(
                "Unknown curve name: " + name);
        }
    } else {
        throw new InvalidAlgorithmParameterException(
            "ECParameterSpec or ECGenParameterSpec required for EC");
    }
    this.keySize =
        ((ECParameterSpec)this.params).getCurve().getField().getFieldSize();
    this.random = random;
}

源代码2 项目： openjsse 文件： ECDHKeyExchange.java

static ECDHECredentials valueOf(NamedGroup namedGroup,
    byte[] encodedPoint) throws IOException, GeneralSecurityException {

    if (namedGroup.type != NamedGroupType.NAMED_GROUP_ECDHE) {
        throw new RuntimeException(
            "Credentials decoding:  Not ECDHE named group");
    }

    if (encodedPoint == null || encodedPoint.length == 0) {
        return null;
    }

    ECParameterSpec parameters =
            JsseJce.getECParameterSpec(namedGroup.oid);
    if (parameters == null) {
        return null;
    }

    ECPoint point = JsseJce.decodePoint(
            encodedPoint, parameters.getCurve());
    KeyFactory factory = JsseJce.getKeyFactory("EC");
    ECPublicKey publicKey = (ECPublicKey)factory.generatePublic(
            new ECPublicKeySpec(point, parameters));
    return new ECDHECredentials(publicKey, namedGroup);
}

源代码3 项目： web3sdk 文件： PEMManager.java

public PublicKey getPublicKey()
        throws InvalidKeySpecException, NoSuchAlgorithmException, NoSuchProviderException {
    ECPrivateKey privateKey = (ECPrivateKey) getPrivateKey();

    ECParameterSpec params = privateKey.getParams();

    org.bouncycastle.jce.spec.ECParameterSpec bcSpec =
            org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util.convertSpec(params, false);
    org.bouncycastle.math.ec.ECPoint q = bcSpec.getG().multiply(privateKey.getS());
    org.bouncycastle.math.ec.ECPoint bcW = bcSpec.getCurve().decodePoint(q.getEncoded(false));
    ECPoint w =
            new ECPoint(
                    bcW.getAffineXCoord().toBigInteger(), bcW.getAffineYCoord().toBigInteger());
    ECPublicKeySpec keySpec = new ECPublicKeySpec(w, tryFindNamedCurveSpec(params));
    return (PublicKey)
            KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME)
                    .generatePublic(keySpec);
}

源代码4 项目： ECTester 文件： ECTesterStandalone.java

/**
 *
 */
private void export() throws NoSuchAlgorithmException, IOException {
    ProviderECLibrary lib = cfg.selected;
    KeyPairGeneratorIdent ident = null;
    String algo = cli.getOptionValue("export.type", "EC");
    for (KeyPairGeneratorIdent kpIdent : lib.getKPGs()) {
        if (kpIdent.contains(algo)) {
            ident = kpIdent;
            break;
        }
    }
    if (ident == null) {
        throw new NoSuchAlgorithmException(algo);
    }
    KeyPairGenerator kpg = ident.getInstance(lib.getProvider());
    if (cli.hasOption("export.bits")) {
        int bits = Integer.parseInt(cli.getOptionValue("export.bits"));
        kpg.initialize(bits);
    }
    KeyPair kp = kpg.genKeyPair();
    ECPrivateKey privateKey = (ECPrivateKey) kp.getPrivate();
    ECParameterSpec params = privateKey.getParams();
    System.out.println(params);
    EC_Curve curve = EC_Curve.fromSpec(params);
    curve.writeCSV(System.out);
}

源代码5 项目： TencentKona-8 文件： ECKeyPairGenerator.java

private KeyPair generateKeyPairNative(SecureRandom random)
    throws Exception {

    ECParameterSpec ecParams = (ECParameterSpec) params;
    byte[] encodedParams = ECUtil.encodeECParameterSpec(null, ecParams);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    random.nextBytes(seed);
    Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);

    // The 'params' object supplied above is equivalent to the native
    // one so there is no need to fetch it.
    // keyBytes[0] is the encoding of the native private key
    BigInteger s = new BigInteger(1, (byte[]) keyBytes[0]);

    PrivateKey privateKey = new ECPrivateKeyImpl(s, ecParams);

    // keyBytes[1] is the encoding of the native public key
    byte[] pubKey = (byte[]) keyBytes[1];
    ECPoint w = ECUtil.decodePoint(pubKey, ecParams.getCurve());
    PublicKey publicKey = new ECPublicKeyImpl(w, ecParams);

    return new KeyPair(publicKey, privateKey);
}

源代码6 项目： RipplePower 文件： BCDSTU4145PublicKey.java

public BCDSTU4145PublicKey(
    org.ripple.bouncycastle.jce.spec.ECPublicKeySpec spec)
{
    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
    {
        if (q.getCurve() == null)
        {
            org.ripple.bouncycastle.jce.spec.ECParameterSpec s = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();

            q = s.getCurve().createPoint(q.getAffineXCoord().toBigInteger(), q.getAffineYCoord().toBigInteger());
        }
        this.ecSpec = null;
    }
}

源代码7 项目： web3sdk 文件： P12Manager.java

public PublicKey getPublicKey()
        throws UnrecoverableKeyException, KeyStoreException, NoSuchAlgorithmException,
                InvalidKeySpecException, NoSuchProviderException {
    ECPrivateKey privateKey = (ECPrivateKey) getPrivateKey();

    ECParameterSpec params = privateKey.getParams();

    org.bouncycastle.jce.spec.ECParameterSpec bcSpec =
            org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util.convertSpec(params, false);
    org.bouncycastle.math.ec.ECPoint q = bcSpec.getG().multiply(privateKey.getS());
    org.bouncycastle.math.ec.ECPoint bcW = bcSpec.getCurve().decodePoint(q.getEncoded(false));
    ECPoint w =
            new ECPoint(
                    bcW.getAffineXCoord().toBigInteger(), bcW.getAffineYCoord().toBigInteger());
    ECPublicKeySpec keySpec = new ECPublicKeySpec(w, tryFindNamedCurveSpec(params));
    return (PublicKey)
            KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME)
                    .generatePublic(keySpec);
}

源代码8 项目： openjdk-jdk8u 文件： DOMKeyValue.java

private static String getCurveOid(ECParameterSpec params) {
    // Check that the params represent one of the supported
    // curves. If there is a match, return the object identifier
    // of the curve.
    Curve match;
    if (matchCurve(params, SECP256R1)) {
        match = SECP256R1;
    } else if (matchCurve(params, SECP384R1)) {
        match = SECP384R1;
    } else if (matchCurve(params, SECP521R1)) {
        match = SECP521R1;
    } else {
        return null;
    }
    return match.getObjectId();
}

源代码9 项目： openjdk-jdk8u-backup 文件： ECKeyPairGenerator.java

@Override
public void initialize(AlgorithmParameterSpec params, SecureRandom random)
        throws InvalidAlgorithmParameterException {

    if (params instanceof ECParameterSpec) {
        this.params = ECUtil.getECParameterSpec(null,
                                                (ECParameterSpec)params);
        if (this.params == null) {
            throw new InvalidAlgorithmParameterException(
                "Unsupported curve: " + params);
        }
    } else if (params instanceof ECGenParameterSpec) {
        String name = ((ECGenParameterSpec)params).getName();
        this.params = ECUtil.getECParameterSpec(null, name);
        if (this.params == null) {
            throw new InvalidAlgorithmParameterException(
                "Unknown curve name: " + name);
        }
    } else {
        throw new InvalidAlgorithmParameterException(
            "ECParameterSpec or ECGenParameterSpec required for EC");
    }
    this.keySize =
        ((ECParameterSpec)this.params).getCurve().getField().getFieldSize();
    this.random = random;
}

源代码10 项目： ripple-lib-java 文件： EC5Util.java

public static ECParameterSpec convertSpec(
    EllipticCurve ellipticCurve,
    org.ripple.bouncycastle.jce.spec.ECParameterSpec spec)
{
    if (spec instanceof ECNamedCurveParameterSpec)
    {
        return new ECNamedCurveSpec(
            ((ECNamedCurveParameterSpec)spec).getName(),
            ellipticCurve,
            new ECPoint(
                spec.getG().getAffineXCoord().toBigInteger(),
                spec.getG().getAffineYCoord().toBigInteger()),
            spec.getN(),
            spec.getH());
    }
    else
    {
        return new ECParameterSpec(
            ellipticCurve,
            new ECPoint(
                spec.getG().getAffineXCoord().toBigInteger(),
                spec.getG().getAffineYCoord().toBigInteger()),
            spec.getN(),
            spec.getH().intValue());
    }
}

源代码11 项目： aws-encryption-sdk-java 文件： TrailingSignatureAlgorithmTest.java

private void testSerialization(CryptoAlgorithm algorithm, String curveName, int[] x, int[] y, int[] expected) throws Exception {
    byte[] xBytes = TestUtils.unsignedBytesToSignedBytes(x);
    byte[] yBytes = TestUtils.unsignedBytesToSignedBytes(y);

    final AlgorithmParameters parameters = AlgorithmParameters.getInstance("EC");
    parameters.init(new ECGenParameterSpec(curveName));
    ECParameterSpec ecParameterSpec = parameters.getParameterSpec(ECParameterSpec.class);

    PublicKey publicKey = KeyFactory.getInstance("EC").generatePublic(
            new ECPublicKeySpec(new ECPoint(new BigInteger(1, xBytes), new BigInteger(1, yBytes)), ecParameterSpec));

    int[] result = TestUtils.signedBytesToUnsignedBytes(Utils.decodeBase64String(TrailingSignatureAlgorithm
            .forCryptoAlgorithm(algorithm)
            .serializePublicKey(publicKey)));

    assertArrayEquals(expected, result);
}

源代码12 项目： RipplePower 文件： JCEECPublicKey.java

public JCEECPublicKey(
    String                  algorithm,
    ECPublicKeyParameters   params,
    ECParameterSpec         spec)
{
    ECDomainParameters      dp = params.getParameters();

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

    if (spec == null)
    {
        EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

        this.ecSpec = createSpec(ellipticCurve, dp);
    }
    else
    {
        this.ecSpec = spec;
    }
}

源代码13 项目： jdk8u_jdk 文件： CPublicKey.java

@Override
public ECParameterSpec getParams() {
    try {
        AlgorithmParameters ap = AlgorithmParameters.getInstance("EC");
        ap.init(new ECKeySizeParameterSpec(keyLength));
        return ap.getParameterSpec(ECParameterSpec.class);
    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

源代码14 项目： openjdk-8 文件： PKCS11Test.java

boolean checkSupport(Vector<ECParameterSpec> supportedEC,
        ECParameterSpec curve) {
    boolean found = false;
    for (ECParameterSpec ec: supportedEC) {
        if (ec.equals(curve)) {
            return true;
        }
    }
    return false;
}

源代码15 项目： openjdk-jdk8u 文件： ECKeyPairGenerator.java

@Override
public void initialize(AlgorithmParameterSpec params, SecureRandom random)
        throws InvalidAlgorithmParameterException {

    ECParameterSpec ecSpec = null;

    if (params instanceof ECParameterSpec) {
        ECParameterSpec ecParams = (ECParameterSpec) params;
        ecSpec = ECUtil.getECParameterSpec(null, ecParams);
        if (ecSpec == null) {
            throw new InvalidAlgorithmParameterException(
                "Unsupported curve: " + params);
        }
    } else if (params instanceof ECGenParameterSpec) {
        String name = ((ECGenParameterSpec) params).getName();
        ecSpec = ECUtil.getECParameterSpec(null, name);
        if (ecSpec == null) {
            throw new InvalidAlgorithmParameterException(
                "Unknown curve name: " + name);
        }
    } else {
        throw new InvalidAlgorithmParameterException(
            "ECParameterSpec or ECGenParameterSpec required for EC");
    }

    // Not all known curves are supported by the native implementation
    ensureCurveIsSupported(ecSpec);
    this.params = ecSpec;

    this.keySize = ecSpec.getCurve().getField().getFieldSize();
    this.random = random;
}

源代码16 项目： Jose4j 文件： EcJwkGenerator.java

public static EllipticCurveJsonWebKey generateJwk(ECParameterSpec spec, String provider, SecureRandom secureRandom) throws JoseException
{
    EcKeyUtil keyUtil = new EcKeyUtil(provider, secureRandom);
    KeyPair keyPair = keyUtil.generateKeyPair(spec);
    PublicKey publicKey = keyPair.getPublic();
    EllipticCurveJsonWebKey ecJwk = (EllipticCurveJsonWebKey) PublicJsonWebKey.Factory.newPublicJwk(publicKey);
    ecJwk.setPrivateKey(keyPair.getPrivate());
    return ecJwk;
}

源代码17 项目： EccPlayground 文件： ECTestBC.java

@Test
   public void generatePoints() {

// curve definition
String a = "1";
String b = "0";
String q = "23"; // modulus in the elliptic curve

// base point initialization
String basePointX = "1";
String basePointY = "5";
String order = "23";

// private key
String privateKey = "6";

// public key points
String publicKeyX = "11";
String publicKeyY = "1";

// y^2 = x^3 + ax + b mod q
EllipticCurve curve = new EllipticCurve(new ECFieldFp(new BigInteger(q)), // q
									  // (modulus)
	new BigInteger(a), // a
	new BigInteger(b)); // b

ECParameterSpec spec = new ECParameterSpec(curve, new ECPoint(new BigInteger(basePointX), new BigInteger(
	basePointY)), // G
	new BigInteger(order), // n
	1); // h
   }

源代码18 项目： openjdk-jdk8u 文件： DOMKeyValue.java

private static ECParameterSpec getECParameterSpec(String oid) {
    if (oid.equals(SECP256R1.getObjectId())) {
        return SECP256R1;
    } else if (oid.equals(SECP384R1.getObjectId())) {
        return SECP384R1;
    } else if (oid.equals(SECP521R1.getObjectId())) {
        return SECP521R1;
    } else {
        return null;
    }
}

源代码19 项目： ripple-lib-java 文件： JCEECPrivateKey.java

public JCEECPrivateKey(
    String                  algorithm,
    ECPrivateKeyParameters  params,
    JCEECPublicKey          pubKey,
    ECParameterSpec         spec)
{
    ECDomainParameters      dp = params.getParameters();

    this.algorithm = algorithm;
    this.d = params.getD();

    if (spec == null)
    {
        EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

        this.ecSpec = new ECParameterSpec(
                        ellipticCurve,
                        new ECPoint(
                                dp.getG().getAffineXCoord().toBigInteger(),
                                dp.getG().getAffineYCoord().toBigInteger()),
                        dp.getN(),
                        dp.getH().intValue());
    }
    else
    {
        this.ecSpec = spec;
    }

    publicKey = getPublicKeyDetails(pubKey);
}

源代码20 项目： RipplePower 文件： BCECGOST3410PublicKey.java

private ECParameterSpec createSpec(EllipticCurve ellipticCurve, ECDomainParameters dp)
{
    return new ECParameterSpec(
        ellipticCurve,
        new ECPoint(
            dp.getG().getAffineXCoord().toBigInteger(),
            dp.getG().getAffineYCoord().toBigInteger()),
        dp.getN(),
        dp.getH().intValue());
}

源代码21 项目： azure-keyvault-java 文件： JsonWebKey.java

private static PrivateKey getECPrivateKey(byte[] d, ECParameterSpec curveSpec, Provider provider) {
    try {
        ECPrivateKeySpec priSpec = new ECPrivateKeySpec(new BigInteger(1, d), curveSpec);
        KeyFactory kf = provider != null ? KeyFactory.getInstance("EC", provider)
                : KeyFactory.getInstance("EC", "SunEC");
        return (ECPrivateKey) kf.generatePrivate(priSpec);
    } catch (GeneralSecurityException e) {
        throw new IllegalStateException(e);
    }
}

源代码22 项目： RipplePower 文件： JCEECPublicKey.java

org.ripple.bouncycastle.jce.spec.ECParameterSpec engineGetSpec()
{
    if (ecSpec != null)
    {
        return EC5Util.convertSpec(ecSpec, withCompression);
    }

    return BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
}

源代码23 项目： openjsse 文件： ECDHKeyExchange.java

SecretKey getAgreedSecret(
        byte[] encodedPoint) throws SSLHandshakeException {
    try {
        ECParameterSpec params = publicKey.getParams();
        ECPoint point =
                JsseJce.decodePoint(encodedPoint, params.getCurve());
        KeyFactory kf = JsseJce.getKeyFactory("EC");
        ECPublicKeySpec spec = new ECPublicKeySpec(point, params);
        PublicKey peerPublicKey = kf.generatePublic(spec);
        return getAgreedSecret(peerPublicKey);
    } catch (GeneralSecurityException | java.io.IOException e) {
        throw (SSLHandshakeException) new SSLHandshakeException(
            "Could not generate secret").initCause(e);
    }
}

源代码24 项目： openjsse 文件： ECDHClientKeyExchange.java

ECDHClientKeyExchangeMessage(HandshakeContext handshakeContext,
        ECPublicKey publicKey) {
    super(handshakeContext);

    ECPoint point = publicKey.getW();
    ECParameterSpec params = publicKey.getParams();
    encodedPoint = JsseJce.encodePoint(point, params.getCurve());
}

源代码25 项目： openjdk-8-source 文件： ECKeyPairGenerator.java

@Override
public KeyPair generateKeyPair() {

    byte[] encodedParams =
        ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);

    // seed is twice the key size (in bytes) plus 1
    byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
    if (random == null) {
        random = JCAUtil.getSecureRandom();
    }
    random.nextBytes(seed);

    try {

        long[] handles = generateECKeyPair(keySize, encodedParams, seed);

        // The 'params' object supplied above is equivalent to the native
        // one so there is no need to fetch it.

        // handles[0] points to the native private key
        BigInteger s = new BigInteger(1, getEncodedBytes(handles[0]));

        PrivateKey privateKey =
            new ECPrivateKeyImpl(s, (ECParameterSpec)params);

        // handles[1] points to the native public key
        ECPoint w = ECUtil.decodePoint(getEncodedBytes(handles[1]),
            ((ECParameterSpec)params).getCurve());
        PublicKey publicKey =
            new ECPublicKeyImpl(w, (ECParameterSpec)params);

        return new KeyPair(publicKey, privateKey);

    } catch (Exception e) {
        throw new ProviderException(e);
    }
}

源代码26 项目： jdk8u-dev-jdk 文件： PKCS11Test.java

boolean checkSupport(Vector<ECParameterSpec> supportedEC,
        ECParameterSpec curve) {
    boolean found = false;
    for (ECParameterSpec ec: supportedEC) {
        if (ec.equals(curve)) {
            return true;
        }
    }
    return false;
}

源代码27 项目： ripple-lib-java 文件： BCECPublicKey.java

private ECParameterSpec createSpec(EllipticCurve ellipticCurve, ECDomainParameters dp)
{
    return new ECParameterSpec(
            ellipticCurve,
            new ECPoint(
                    dp.getG().getAffineXCoord().toBigInteger(),
                    dp.getG().getAffineYCoord().toBigInteger()),
                    dp.getN(),
                    dp.getH().intValue());
}

源代码28 项目： RipplePower 文件： BCDSTU4145PrivateKey.java

public BCDSTU4145PrivateKey(
    String algorithm,
    ECPrivateKeyParameters params,
    BCDSTU4145PublicKey pubKey,
    ECParameterSpec spec)
{
    ECDomainParameters dp = params.getParameters();

    this.algorithm = algorithm;
    this.d = params.getD();

    if (spec == null)
    {
        EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

        this.ecSpec = new ECParameterSpec(
            ellipticCurve,
            new ECPoint(
                dp.getG().getAffineXCoord().toBigInteger(),
                dp.getG().getAffineYCoord().toBigInteger()),
            dp.getN(),
            dp.getH().intValue());
    }
    else
    {
        this.ecSpec = spec;
    }

    publicKey = getPublicKeyDetails(pubKey);
}

源代码29 项目： ECTester 文件： NativeKeyPairGeneratorSpi.java

@Override
KeyPair generate(AlgorithmParameterSpec params, SecureRandom random) {
    if (params instanceof ECGenParameterSpec) {
            String curveName = ((ECGenParameterSpec) params).getName();
            if (curveName.contains("secp")) {
                curveName = "secg/" + curveName;
            }
            EC_Curve curve = EC_Store.getInstance().getObject(EC_Curve.class, curveName);
            ECParameterSpec spec = curve.toSpec();
            return generate(params, random, spec);
    }
    return null;
}

源代码30 项目： termd 文件： BaseTestSupport.java

public static void assertECParameterSpecEquals(String message, ECParameterSpec expected, ECParameterSpec actual) {
    if (expected == actual) {
        return;
    }

    assertEquals(message + "[order]", expected.getOrder(), actual.getOrder());
    assertEquals(message + "[cofactor]", expected.getCofactor(), actual.getCofactor());
    assertECPointEquals(message + "[generator]", expected.getGenerator(), actual.getGenerator());
    assertCurveEquals(message + "[curve]", expected.getCurve(), actual.getCurve());
}

类所在包

java.security.spec

类方法

getCurve()

equals()

同包方法

java.security.spec.InvalidKeySpecException

java.security.spec.X509EncodedKeySpec

java.security.spec.PKCS8EncodedKeySpec

java.security.spec.KeySpec

java.security.spec.RSAPublicKeySpec

java.security.spec.AlgorithmParameterSpec