Examples with DSAParams java.security.interfaces.DSAParams used on opensource projects

Example 31 with DSAParams

use of java.security.interfaces.DSAParams in project robovm by robovm.

the class DSAKeyPairGeneratorTest method test_DSAKeyPairGenerator01.

/**
     * java.security.interfaces.DSAKeyPairGenerator
     * #initialize(DSAParams params, SecureRandom random)
     */
public void test_DSAKeyPairGenerator01() {
    DSAParams dsaParams = new DSAParameterSpec(p, q, g);
    SecureRandom random = null;
    MyDSA dsa = new MyDSA(dsaParams);
    try {
        random = SecureRandom.getInstance("SHA1PRNG");
    } catch (Exception e) {
        fail("Unexpected exception for SecureRandom: " + e);
    }
    try {
        dsa.initialize(dsaParams, random);
    } catch (Exception e) {
        fail("Unexpected exception: " + e);
    }
    try {
        dsa.initialize(dsaParams, null);
        fail("InvalidParameterException was not thrown");
    } catch (InvalidParameterException ipe) {
    //expected
    } catch (Exception e) {
        fail(e + " was thrown instead of InvalidParameterException");
    }
    try {
        dsa.initialize(null, random);
        fail("InvalidParameterException was not thrown");
    } catch (InvalidParameterException ipe) {
    //expected
    } catch (Exception e) {
        fail(e + " was thrown instead of InvalidParameterException");
    }
}

Example 32 with DSAParams

use of java.security.interfaces.DSAParams in project robovm by robovm.

the class DSAKeyPairGeneratorTest method test_DSAKeyPairGenerator02.

/**
     * java.security.interfaces.DSAKeyPairGenerator
     * #initialize(int modlen, boolean genParams, SecureRandom randomm)
     */
public void test_DSAKeyPairGenerator02() {
    int[] invalidLen = { -1, 0, 511, 513, 650, 1023, 1025 };
    DSAParams dsaParams = new DSAParameterSpec(p, q, g);
    SecureRandom random = null;
    MyDSA dsa = new MyDSA(null);
    try {
        random = SecureRandom.getInstance("SHA1PRNG");
    } catch (Exception e) {
        fail("Unexpected exception for SecureRandom: " + e);
    }
    //exception case
    try {
        dsa.initialize(520, false, random);
        fail("InvalidParameterException was not thrown");
    } catch (InvalidParameterException ipe) {
        String str = ipe.getMessage();
        if (!str.equals("there are not precomputed parameters")) {
            fail("Incorrect exception's message: " + str);
        }
    } catch (Exception e) {
        fail(e + " was thrown instead of InvalidParameterException");
    }
    //exception case
    for (int i = 0; i < invalidLen.length; i++) {
        try {
            dsa.initialize(invalidLen[i], true, random);
            fail("InvalidParameterException was not thrown");
        } catch (InvalidParameterException ipe) {
            String str = ipe.getMessage();
            if (!str.equals("Incorrect modlen")) {
                fail("Incorrect exception's message: " + str);
            }
        } catch (Exception e) {
            fail(e + " was thrown instead of InvalidParameterException");
        }
    }
    //positive case
    dsa = new MyDSA(dsaParams);
    try {
        dsa.initialize(520, true, random);
    } catch (Exception e) {
        fail(e + " was thrown for subcase 1");
    }
    //positive case
    try {
        dsa.initialize(520, false, random);
    } catch (Exception e) {
        fail(e + " was thrown for subcase 1");
    }
}

Example 33 with DSAParams

use of java.security.interfaces.DSAParams in project robovm by robovm.

the class DSAKeyTest method test_getParams.

/**
     * java.security.interfaces.DSAKey
     * #getParams()
     * test covers following use cases
     *   Case 1: check private key
     *   Case 2: check public key
     */
public void test_getParams() throws Exception {
    DSAParams param = new DSAParameterSpec(Util.P, Util.Q, Util.G);
    KeyPairGenerator gen = KeyPairGenerator.getInstance("DSA");
    gen.initialize((DSAParameterSpec) param);
    DSAKey key = null;
    // Case 1: check private key
    key = (DSAKey) gen.generateKeyPair().getPrivate();
    assertDSAParamsEquals(param, key.getParams());
    // Case 2: check public key
    key = (DSAKey) gen.generateKeyPair().getPublic();
    assertDSAParamsEquals(param, key.getParams());
}

Example 34 with DSAParams

use of java.security.interfaces.DSAParams in project robovm by robovm.

the class DSAParamsTest method test_getG.

/**
     * java.security.interfaces.DSAParams
     * #getG()
     */
public void test_getG() {
    DSAParams params = new DSAParameterSpec(p, q, g);
    assertEquals("Invalid G", g, params.getG());
}

Example 35 with DSAParams

use of java.security.interfaces.DSAParams in project robovm by robovm.

the class CertPathValidatorUtilities method getNextWorkingKey.

/**
     * Return the next working key inheriting DSA parameters if necessary.
     * <p>
     * This methods inherits DSA parameters from the indexed certificate or
     * previous certificates in the certificate chain to the returned
     * <code>PublicKey</code>. The list is searched upwards, meaning the end
     * certificate is at position 0 and previous certificates are following.
     * </p>
     * <p>
     * If the indexed certificate does not contain a DSA key this method simply
     * returns the public key. If the DSA key already contains DSA parameters
     * the key is also only returned.
     * </p>
     *
     * @param certs The certification path.
     * @param index The index of the certificate which contains the public key
     *              which should be extended with DSA parameters.
     * @return The public key of the certificate in list position
     *         <code>index</code> extended with DSA parameters if applicable.
     * @throws AnnotatedException if DSA parameters cannot be inherited.
     */
protected static PublicKey getNextWorkingKey(List certs, int index) throws CertPathValidatorException {
    Certificate cert = (Certificate) certs.get(index);
    PublicKey pubKey = cert.getPublicKey();
    if (!(pubKey instanceof DSAPublicKey)) {
        return pubKey;
    }
    DSAPublicKey dsaPubKey = (DSAPublicKey) pubKey;
    if (dsaPubKey.getParams() != null) {
        return dsaPubKey;
    }
    for (int i = index + 1; i < certs.size(); i++) {
        X509Certificate parentCert = (X509Certificate) certs.get(i);
        pubKey = parentCert.getPublicKey();
        if (!(pubKey instanceof DSAPublicKey)) {
            throw new CertPathValidatorException("DSA parameters cannot be inherited from previous certificate.");
        }
        DSAPublicKey prevDSAPubKey = (DSAPublicKey) pubKey;
        if (prevDSAPubKey.getParams() == null) {
            continue;
        }
        DSAParams dsaParams = prevDSAPubKey.getParams();
        DSAPublicKeySpec dsaPubKeySpec = new DSAPublicKeySpec(dsaPubKey.getY(), dsaParams.getP(), dsaParams.getQ(), dsaParams.getG());
        try {
            KeyFactory keyFactory = KeyFactory.getInstance("DSA", BouncyCastleProvider.PROVIDER_NAME);
            return keyFactory.generatePublic(dsaPubKeySpec);
        } catch (Exception exception) {
            throw new RuntimeException(exception.getMessage());
        }
    }
    throw new CertPathValidatorException("DSA parameters cannot be inherited from previous certificate.");
}