Examples with InvalidKeySpecException java.security.spec.InvalidKeySpecException used on opensource projects

Example 86 with InvalidKeySpecException

use of java.security.spec.InvalidKeySpecException in project android_frameworks_base by crdroidandroid.

the class PackageParser method parsePublicKey.

public static final PublicKey parsePublicKey(final String encodedPublicKey) {
    if (encodedPublicKey == null) {
        Slog.w(TAG, "Could not parse null public key");
        return null;
    }
    EncodedKeySpec keySpec;
    try {
        final byte[] encoded = Base64.decode(encodedPublicKey, Base64.DEFAULT);
        keySpec = new X509EncodedKeySpec(encoded);
    } catch (IllegalArgumentException e) {
        Slog.w(TAG, "Could not parse verifier public key; invalid Base64");
        return null;
    }
    /* First try the key as an RSA key. */
    try {
        final KeyFactory keyFactory = KeyFactory.getInstance("RSA");
        return keyFactory.generatePublic(keySpec);
    } catch (NoSuchAlgorithmException e) {
        Slog.wtf(TAG, "Could not parse public key: RSA KeyFactory not included in build");
    } catch (InvalidKeySpecException e) {
    // Not a RSA public key.
    }
    /* Now try it as a ECDSA key. */
    try {
        final KeyFactory keyFactory = KeyFactory.getInstance("EC");
        return keyFactory.generatePublic(keySpec);
    } catch (NoSuchAlgorithmException e) {
        Slog.wtf(TAG, "Could not parse public key: EC KeyFactory not included in build");
    } catch (InvalidKeySpecException e) {
    // Not a ECDSA public key.
    }
    /* Now try it as a DSA key. */
    try {
        final KeyFactory keyFactory = KeyFactory.getInstance("DSA");
        return keyFactory.generatePublic(keySpec);
    } catch (NoSuchAlgorithmException e) {
        Slog.wtf(TAG, "Could not parse public key: DSA KeyFactory not included in build");
    } catch (InvalidKeySpecException e) {
    // Not a DSA public key.
    }
    /* Not a supported key type */
    return null;
}

Example 87 with InvalidKeySpecException

use of java.security.spec.InvalidKeySpecException in project smartmodule by carozhu.

the class RSAUtils method loadPublicKey.

/**
	 * 从字符串中加载公钥
	 * 
	 * @param publicKeyStr
	 *            公钥数据字符串
	 * @throws Exception
	 *             加载公钥时产生的异常
	 */
public static PublicKey loadPublicKey(String publicKeyStr) throws Exception {
    try {
        byte[] buffer = Base64Utils.decode(publicKeyStr);
        KeyFactory keyFactory = KeyFactory.getInstance(KEY_PAIR);
        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(buffer);
        return keyFactory.generatePublic(keySpec);
    } catch (NoSuchAlgorithmException e) {
        throw new Exception("无此算法");
    } catch (InvalidKeySpecException e) {
        throw new Exception("公钥非法");
    } catch (NullPointerException e) {
        throw new Exception("公钥数据为空");
    }
}

Example 88 with InvalidKeySpecException

use of java.security.spec.InvalidKeySpecException in project jdk8u_jdk by JetBrains.

the class DSAKeyFactory method engineGetKeySpec.

/**
     * Returns a specification (key material) of the given key object
     * in the requested format.
     *
     * @param key the key
     *
     * @param keySpec the requested format in which the key material shall be
     * returned
     *
     * @return the underlying key specification (key material) in the
     * requested format
     *
     * @exception InvalidKeySpecException if the requested key specification is
     * inappropriate for the given key, or the given key cannot be processed
     * (e.g., the given key has an unrecognized algorithm or format).
     */
protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpec) throws InvalidKeySpecException {
    DSAParams params;
    try {
        if (key instanceof java.security.interfaces.DSAPublicKey) {
            // Determine valid key specs
            Class<?> dsaPubKeySpec = Class.forName("java.security.spec.DSAPublicKeySpec");
            Class<?> x509KeySpec = Class.forName("java.security.spec.X509EncodedKeySpec");
            if (dsaPubKeySpec.isAssignableFrom(keySpec)) {
                java.security.interfaces.DSAPublicKey dsaPubKey = (java.security.interfaces.DSAPublicKey) key;
                params = dsaPubKey.getParams();
                return keySpec.cast(new DSAPublicKeySpec(dsaPubKey.getY(), params.getP(), params.getQ(), params.getG()));
            } else if (x509KeySpec.isAssignableFrom(keySpec)) {
                return keySpec.cast(new X509EncodedKeySpec(key.getEncoded()));
            } else {
                throw new InvalidKeySpecException("Inappropriate key specification");
            }
        } else if (key instanceof java.security.interfaces.DSAPrivateKey) {
            // Determine valid key specs
            Class<?> dsaPrivKeySpec = Class.forName("java.security.spec.DSAPrivateKeySpec");
            Class<?> pkcs8KeySpec = Class.forName("java.security.spec.PKCS8EncodedKeySpec");
            if (dsaPrivKeySpec.isAssignableFrom(keySpec)) {
                java.security.interfaces.DSAPrivateKey dsaPrivKey = (java.security.interfaces.DSAPrivateKey) key;
                params = dsaPrivKey.getParams();
                return keySpec.cast(new DSAPrivateKeySpec(dsaPrivKey.getX(), params.getP(), params.getQ(), params.getG()));
            } else if (pkcs8KeySpec.isAssignableFrom(keySpec)) {
                return keySpec.cast(new PKCS8EncodedKeySpec(key.getEncoded()));
            } else {
                throw new InvalidKeySpecException("Inappropriate key specification");
            }
        } else {
            throw new InvalidKeySpecException("Inappropriate key type");
        }
    } catch (ClassNotFoundException e) {
        throw new InvalidKeySpecException("Unsupported key specification: " + e.getMessage());
    }
}

Example 89 with InvalidKeySpecException

use of java.security.spec.InvalidKeySpecException in project jdk8u_jdk by JetBrains.

the class PBEKeyFactory method engineGetKeySpec.

/**
     * Returns a specification (key material) of the given key
     * in the requested format.
     *
     * @param key the key
     *
     * @param keySpec the requested format in which the key material shall be
     * returned
     *
     * @return the underlying key specification (key material) in the
     * requested format
     *
     * @exception InvalidKeySpecException if the requested key specification is
     * inappropriate for the given key, or the given key cannot be processed
     * (e.g., the given key has an unrecognized algorithm or format).
     */
protected KeySpec engineGetKeySpec(SecretKey key, Class<?> keySpecCl) throws InvalidKeySpecException {
    if ((key instanceof SecretKey) && (validTypes.contains(key.getAlgorithm().toUpperCase(Locale.ENGLISH))) && (key.getFormat().equalsIgnoreCase("RAW"))) {
        // Check if requested key spec is amongst the valid ones
        if ((keySpecCl != null) && PBEKeySpec.class.isAssignableFrom(keySpecCl)) {
            byte[] passwdBytes = key.getEncoded();
            char[] passwdChars = new char[passwdBytes.length];
            for (int i = 0; i < passwdChars.length; i++) passwdChars[i] = (char) (passwdBytes[i] & 0x7f);
            PBEKeySpec ret = new PBEKeySpec(passwdChars);
            // password char[] was cloned in PBEKeySpec constructor,
            // so we can zero it out here
            java.util.Arrays.fill(passwdChars, ' ');
            java.util.Arrays.fill(passwdBytes, (byte) 0x00);
            return ret;
        } else {
            throw new InvalidKeySpecException("Invalid key spec");
        }
    } else {
        throw new InvalidKeySpecException("Invalid key " + "format/algorithm");
    }
}

Example 90 with InvalidKeySpecException

use of java.security.spec.InvalidKeySpecException in project jdk8u_jdk by JetBrains.

the class ConstructKeys method constructPublicKey.

/**
     * Construct a public key from its encoding.
     *
     * @param encodedKey the encoding of a public key.
     *
     * @param encodedKeyAlgorithm the algorithm the encodedKey is for.
     *
     * @return a public key constructed from the encodedKey.
     */
private static final PublicKey constructPublicKey(byte[] encodedKey, String encodedKeyAlgorithm) throws InvalidKeyException, NoSuchAlgorithmException {
    PublicKey key = null;
    try {
        KeyFactory keyFactory = KeyFactory.getInstance(encodedKeyAlgorithm, SunJCE.getInstance());
        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(encodedKey);
        key = keyFactory.generatePublic(keySpec);
    } catch (NoSuchAlgorithmException nsae) {
        // provider which supports this algorithm
        try {
            KeyFactory keyFactory = KeyFactory.getInstance(encodedKeyAlgorithm);
            X509EncodedKeySpec keySpec = new X509EncodedKeySpec(encodedKey);
            key = keyFactory.generatePublic(keySpec);
        } catch (NoSuchAlgorithmException nsae2) {
            throw new NoSuchAlgorithmException("No installed providers " + "can create keys for the " + encodedKeyAlgorithm + "algorithm");
        } catch (InvalidKeySpecException ikse2) {
            InvalidKeyException ike = new InvalidKeyException("Cannot construct public key");
            ike.initCause(ikse2);
            throw ike;
        }
    } catch (InvalidKeySpecException ikse) {
        InvalidKeyException ike = new InvalidKeyException("Cannot construct public key");
        ike.initCause(ikse);
        throw ike;
    }
    return key;
}