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

Example 41 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 42 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 43 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.");
}

Example 44 with DSAParams

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

the class OpenSSLDSAKeyFactory method engineGetKeySpec.

@Override
protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpec) throws InvalidKeySpecException {
    if (key == null) {
        throw new InvalidKeySpecException("key == null");
    }
    if (keySpec == null) {
        throw new InvalidKeySpecException("keySpec == null");
    }
    if (!"DSA".equals(key.getAlgorithm())) {
        throw new InvalidKeySpecException("Key must be a DSA key");
    }
    if (key instanceof DSAPublicKey && DSAPublicKeySpec.class.isAssignableFrom(keySpec)) {
        DSAPublicKey dsaKey = (DSAPublicKey) key;
        DSAParams params = dsaKey.getParams();
        return (T) new DSAPublicKeySpec(dsaKey.getY(), params.getP(), params.getQ(), params.getG());
    } else if (key instanceof PublicKey && DSAPublicKeySpec.class.isAssignableFrom(keySpec)) {
        final byte[] encoded = key.getEncoded();
        if (!"X.509".equals(key.getFormat()) || encoded == null) {
            throw new InvalidKeySpecException("Not a valid X.509 encoding");
        }
        DSAPublicKey dsaKey = (DSAPublicKey) engineGeneratePublic(new X509EncodedKeySpec(encoded));
        DSAParams params = dsaKey.getParams();
        return (T) new DSAPublicKeySpec(dsaKey.getY(), params.getP(), params.getQ(), params.getG());
    } else if (key instanceof DSAPrivateKey && DSAPrivateKeySpec.class.isAssignableFrom(keySpec)) {
        DSAPrivateKey dsaKey = (DSAPrivateKey) key;
        DSAParams params = dsaKey.getParams();
        return (T) new DSAPrivateKeySpec(dsaKey.getX(), params.getP(), params.getQ(), params.getG());
    } else if (key instanceof PrivateKey && DSAPrivateKeySpec.class.isAssignableFrom(keySpec)) {
        final byte[] encoded = key.getEncoded();
        if (!"PKCS#8".equals(key.getFormat()) || encoded == null) {
            throw new InvalidKeySpecException("Not a valid PKCS#8 encoding");
        }
        DSAPrivateKey dsaKey = (DSAPrivateKey) engineGeneratePrivate(new PKCS8EncodedKeySpec(encoded));
        DSAParams params = dsaKey.getParams();
        return (T) new DSAPrivateKeySpec(dsaKey.getX(), params.getP(), params.getQ(), params.getG());
    } else if (key instanceof PrivateKey && PKCS8EncodedKeySpec.class.isAssignableFrom(keySpec)) {
        final byte[] encoded = key.getEncoded();
        if (!"PKCS#8".equals(key.getFormat())) {
            throw new InvalidKeySpecException("Encoding type must be PKCS#8; was " + key.getFormat());
        } else if (encoded == null) {
            throw new InvalidKeySpecException("Key is not encodable");
        }
        return (T) new PKCS8EncodedKeySpec(encoded);
    } else if (key instanceof PublicKey && X509EncodedKeySpec.class.isAssignableFrom(keySpec)) {
        final byte[] encoded = key.getEncoded();
        if (!"X.509".equals(key.getFormat())) {
            throw new InvalidKeySpecException("Encoding type must be X.509; was " + key.getFormat());
        } else if (encoded == null) {
            throw new InvalidKeySpecException("Key is not encodable");
        }
        return (T) new X509EncodedKeySpec(encoded);
    } else {
        throw new InvalidKeySpecException("Unsupported key type and key spec combination; key=" + key.getClass().getName() + ", keySpec=" + keySpec.getName());
    }
}

Example 45 with DSAParams

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

the class OpenSSLDSAKeyFactory method engineTranslateKey.

@Override
protected Key engineTranslateKey(Key key) throws InvalidKeyException {
    if (key == null) {
        throw new InvalidKeyException("key == null");
    }
    if ((key instanceof OpenSSLDSAPublicKey) || (key instanceof OpenSSLDSAPrivateKey)) {
        return key;
    } else if (key instanceof DSAPublicKey) {
        DSAPublicKey dsaKey = (DSAPublicKey) key;
        BigInteger y = dsaKey.getY();
        DSAParams params = dsaKey.getParams();
        BigInteger p = params.getP();
        BigInteger q = params.getQ();
        BigInteger g = params.getG();
        try {
            return engineGeneratePublic(new DSAPublicKeySpec(y, p, q, g));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if (key instanceof DSAPrivateKey) {
        DSAPrivateKey dsaKey = (DSAPrivateKey) key;
        BigInteger x = dsaKey.getX();
        DSAParams params = dsaKey.getParams();
        BigInteger p = params.getP();
        BigInteger q = params.getQ();
        BigInteger g = params.getG();
        try {
            return engineGeneratePrivate(new DSAPrivateKeySpec(x, p, q, g));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if ((key instanceof PrivateKey) && ("PKCS#8".equals(key.getFormat()))) {
        byte[] encoded = key.getEncoded();
        if (encoded == null) {
            throw new InvalidKeyException("Key does not support encoding");
        }
        try {
            return engineGeneratePrivate(new PKCS8EncodedKeySpec(encoded));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if ((key instanceof PublicKey) && ("X.509".equals(key.getFormat()))) {
        byte[] encoded = key.getEncoded();
        if (encoded == null) {
            throw new InvalidKeyException("Key does not support encoding");
        }
        try {
            return engineGeneratePublic(new X509EncodedKeySpec(encoded));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else {
        throw new InvalidKeyException("Key must be DSA public or private key; was " + key.getClass().getName());
    }
}