Example usage for java.security Key getEncoded

Introduction

In this page you can find the example usage for java.security Key getEncoded.

Prototype

public byte[] getEncoded();

Source Link

Document

Returns the key in its primary encoding format, or null if this key does not support encoding.

Usage

From source file:com.zacwolf.commons.crypto._CRYPTOfactory.java

final public static _CRYPTOfactory getInstanceFromKeystore(final KeyStore keystore, final char[] keystorepass,
        final String alias)
        throws UnrecoverableKeyException, KeyStoreException, NoSuchAlgorithmException, CertificateException,
        FileNotFoundException, IOException, IllegalArgumentException, SecurityException, InstantiationException,
        IllegalAccessException, InvocationTargetException, NoSuchMethodException, ClassNotFoundException {
    final Key keyFromStore = keystore.getKey(alias, keystorepass);
    final String type = keyFromStore.getAlgorithm();
    return new _CRYPTOfactory(
            (Crypter) Class.forName(_CRYPTOfactory.class.getPackage().getName() + "." + type + "Crypter")
                    .getConstructor(byte[].class).newInstance(keyFromStore.getEncoded()));
}

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From source file:org.opensaml.xml.security.SecurityHelper.java

/**
 * Get the key length in bits of the specified key.
 * //w w w  .  jav a  2s .  c om
 * @param key the key to evaluate
 * @return length of the key in bits, or null if the length can not be determined
 */
public static Integer getKeyLength(Key key) {
    // TODO investigate techniques (and use cases) to determine length in other cases,
    // e.g. RSA and DSA keys, and non-RAW format symmetric keys
    if (key instanceof SecretKey && "RAW".equals(key.getFormat())) {
        return key.getEncoded().length * 8;
    }
    log.debug("Unable to determine length in bits of specified Key instance");
    return null;
}

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From source file:net.jmhertlein.core.crypto.Keys.java

/**
 * Saves the given key to the given file. This method will NOT clobber
 * existing files- will return false if file exists The file will be
 * created, along with any parent directories needed.
 *
 * @param file name of file to save to/*w  w  w .  ja v  a 2s  .  co  m*/
 * @param key  key to save
 *
 * @return true if successfully written, false otherwise
 */
public static boolean storeKey(String file, Key key) {
    File f = new File(file);
    if (!f.exists())
        try {
            if (f.getParentFile() != null)
                f.getParentFile().mkdirs();
            f.createNewFile();
        } catch (IOException ex) {
            Logger.getLogger(Keys.class.getName()).log(Level.SEVERE, null, ex);
        }
    else
        return false;

    try (FileOutputStream fos = new FileOutputStream(file); PrintStream ps = new PrintStream(fos)) {
        ps.println(Base64.encodeBase64String(key.getEncoded()));
        return true;
    } catch (IOException ioe) {
        ioe.printStackTrace();
        return false;
    }
}

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From source file:com.glaf.core.security.SecurityUtils.java

/**
 * ?????,??/*from ww  w  . j av a 2  s . co  m*/
 * 
 * @param ctx
 *            
 * @param symmetryKey
 *            
 * @param pubKey
 *            
 * @return String(?base64?)
 */
public static String generateDigitalEnvelope(SecurityContext ctx, Key symmetryKey, byte[] pubKey) {
    String result = null;
    InputStream inputStream = null;
    try {
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        inputStream = new ByteArrayInputStream(pubKey);
        java.security.cert.Certificate cert = cf.generateCertificate(inputStream);
        inputStream.close();
        PublicKey publicKey = cert.getPublicKey();
        Cipher cipher = Cipher.getInstance(ctx.getAsymmetryAlgorithm());

        cipher.init(Cipher.ENCRYPT_MODE, publicKey);
        result = Base64.encodeBase64String(cipher.doFinal(symmetryKey.getEncoded()));
        return result;
    } catch (Exception ex) {
        throw new SecurityException(ex);
    } finally {
        try {
            if (inputStream != null) {
                inputStream.close();
                inputStream = null;
            }
        } catch (IOException ex) {
        }
    }
}

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From source file:org.apache.hadoop.hbase.security.EncryptionUtil.java

/**
 * Protect a key by encrypting it with the secret key of the given subject.
 * The configuration must be set up correctly for key alias resolution.
 * @param conf configuration//from   ww w  . j a va 2s .  co m
 * @param subject subject key alias
 * @param key the key
 * @return the encrypted key bytes
 */
public static byte[] wrapKey(Configuration conf, String subject, Key key) throws IOException {
    // Wrap the key with the configured encryption algorithm.
    String algorithm = conf.get(HConstants.CRYPTO_KEY_ALGORITHM_CONF_KEY, HConstants.CIPHER_AES);
    Cipher cipher = Encryption.getCipher(conf, algorithm);
    if (cipher == null) {
        throw new RuntimeException("Cipher '" + algorithm + "' not available");
    }
    EncryptionProtos.WrappedKey.Builder builder = EncryptionProtos.WrappedKey.newBuilder();
    builder.setAlgorithm(key.getAlgorithm());
    byte[] iv = null;
    if (cipher.getIvLength() > 0) {
        iv = new byte[cipher.getIvLength()];
        RNG.nextBytes(iv);
        builder.setIv(ByteStringer.wrap(iv));
    }
    byte[] keyBytes = key.getEncoded();
    builder.setLength(keyBytes.length);
    builder.setHash(ByteStringer.wrap(Encryption.hash128(keyBytes)));
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    Encryption.encryptWithSubjectKey(out, new ByteArrayInputStream(keyBytes), subject, conf, cipher, iv);
    builder.setData(ByteStringer.wrap(out.toByteArray()));
    // Build and return the protobuf message
    out.reset();
    builder.build().writeDelimitedTo(out);
    return out.toByteArray();
}

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From source file:bftsmart.tom.util.RSAKeyPairGenerator.java

private String getKeyAsString(Key key) {
    byte[] keyBytes = key.getEncoded();

    return Base64.encodeBase64String(keyBytes);
}

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From source file:com.github.sshw.crypt.EncryptionBean.java

public String encrypt(String message, String password) throws Exception {
    Cipher encrypt = Cipher.getInstance("AES/CBC/PKCS5Padding");
    Key key = keyFromPassword(password);
    IvParameterSpec ivb = new IvParameterSpec(key.getEncoded());
    encrypt.init(Cipher.ENCRYPT_MODE, key, ivb);
    byte[] cb = encrypt.doFinal(message.getBytes());
    String c = Base64.encodeBase64URLSafeString(cb);
    return c;/* ww  w .  ja v a 2 s.co m*/
}

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From source file:org.apache.hadoop.hbase.io.crypto.TestKeyStoreKeyProvider.java

@Test(timeout = 30000)
public void testKeyStoreKeyProviderWithPassword() throws Exception {
    KeyProvider provider = new KeyStoreKeyProvider();
    provider.init("jceks://" + storeFile.toURI().getPath() + "?password=" + PASSWORD);
    Key key = provider.getKey(ALIAS);
    assertNotNull(key);//from   w ww.  j  a v  a2 s .  c o  m
    byte[] keyBytes = key.getEncoded();
    assertEquals(keyBytes.length, KEY.length);
    for (int i = 0; i < KEY.length; i++) {
        assertEquals(keyBytes[i], KEY[i]);
    }
}

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From source file:org.apache.hadoop.hbase.io.crypto.TestKeyStoreKeyProvider.java

@Test(timeout = 30000)
public void testKeyStoreKeyProviderWithPasswordFile() throws Exception {
    KeyProvider provider = new KeyStoreKeyProvider();
    provider.init("jceks://" + storeFile.toURI().getPath() + "?passwordFile="
            + URLEncoder.encode(passwordFile.getAbsolutePath(), "UTF-8"));
    Key key = provider.getKey(ALIAS);
    assertNotNull(key);//w w  w .j  a v  a2  s .  c  o  m
    byte[] keyBytes = key.getEncoded();
    assertEquals(keyBytes.length, KEY.length);
    for (int i = 0; i < KEY.length; i++) {
        assertEquals(keyBytes[i], KEY[i]);
    }
}

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From source file:org.sakaiproject.tool.rutgers.LinkTool.java

/**
 * Writes <code>key</code> to file with name <code>filename</code>
 *
 * @throws IOException if something goes wrong.
 *///from  w  w w  .j  a  v a 2  s. c  o m
private static void writeKey(Key key, String filename) {
    FileOutputStream file = null;
    try {
        file = new FileOutputStream(filename);
        file.write(key.getEncoded());
    } catch (FileNotFoundException e) {
        M_log.error("Unable to write new key to " + filename);
    } catch (IOException e) {
        M_log.error("Unable to write new key to " + filename);
    } finally {
        if (file != null) {
            try {
                file.close();
            } catch (IOException e) {
                // tried
            }
        }
    }
}

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