Example usage for javax.crypto SecretKey getEncoded

Introduction

In this page you can find the example usage for javax.crypto SecretKey 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:de.taimos.dvalin.interconnect.model.MessageCryptoUtil.java

private static void generateKey() {
    try {/*from www.ja  v a2 s. c o  m*/
        final KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);
        final SecretKey skey = kgen.generateKey();
        System.out.println("Key: " + Hex.encodeHexString(skey.getEncoded()));
    } catch (final NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
}

From source file:org.apache.juddi.adminconsole.AES.java

/**
 * generates an AES based off of the selected key size
 *
 * @param keysize//from   www  . j  av  a 2 s. c om
 * @return may return null if the key is not of a supported size by the
 * current jdk
 */
public static String GEN(int keysize) {
    KeyGenerator kgen;
    try {
        kgen = KeyGenerator.getInstance("AES");
        kgen.init(keysize);
        SecretKey skey = kgen.generateKey();
        byte[] raw = skey.getEncoded();
        return new String(Base64.encodeBase64(raw), Charset.defaultCharset());
    } catch (Exception ex) {
        log.fatal("error generating key", ex);
    }
    return null;
}

From source file:models.logic.CipherDecipher.java

public static void keyToFile(SecretKey key, String keyPath) throws IOException {
    File file = new File(keyPath);
    char[] hex = encodeHex(key.getEncoded());
    FileUtils.writeStringToFile(file, String.valueOf(hex));
}

From source file:com.miyue.util.Cryptos.java

/**
 * ?HMAC-SHA1,,160?(20)./*from  ww w.  j a v  a  2 s .  c  om*/
 * HMAC-SHA1?, RFC2401160?(20).
 */
public static byte[] generateHmacSha1Key() {
    try {
        KeyGenerator keyGenerator = KeyGenerator.getInstance(HMACSHA1);
        keyGenerator.init(DEFAULT_HMACSHA1_KEYSIZE);
        SecretKey secretKey = keyGenerator.generateKey();
        return secretKey.getEncoded();
    } catch (GeneralSecurityException e) {
        throw Exceptions.unchecked(e);
    }
}

From source file:com.miyue.util.Cryptos.java

/**
 * ?AES,?128,192,256?./*from  ww w . j  a  v a 2 s.  c om*/
 */
public static byte[] generateAesKey(int keysize) {
    try {
        KeyGenerator keyGenerator = KeyGenerator.getInstance(AES);
        keyGenerator.init(keysize);
        SecretKey secretKey = keyGenerator.generateKey();
        return secretKey.getEncoded();
    } catch (GeneralSecurityException e) {
        throw Exceptions.unchecked(e);
    }
}

From source file:CipherProvider.java

/**
 * Create cipher for encrypt or decrypt backup content
 *
 * @param passwd passwd for encryption//from  www  .j  av  a 2s  .  c o  m
 * @param mode   encrypt/decrypt mode
 *
 * @return instance of cipher
 */
private static Cipher getCipher(final String passwd, final int mode) {
    /* Derive the key, given password and salt. */
    Cipher cipher = null;
    try {
        SecretKeyFactory factory = null;
        factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        String salt = "slNadZlato#%^^&(&(5?@#5166?1561?#%^^*^&54431"; // only pseudorandom salt
        KeySpec spec = new PBEKeySpec(passwd.toCharArray(), salt.getBytes(), 65536, 128);
        SecretKey tmp = factory.generateSecret(spec);
        SecretKey secret = new SecretKeySpec(tmp.getEncoded(), CIPHER_TYPE);

        // initialization vector
        byte[] iv = Arrays.copyOfRange(DigestUtils.md5(passwd), 0, 16);
        AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);

        // Cipher for encryption
        cipher = Cipher.getInstance(CIPHER_TYPE + "/CBC/PKCS5Padding");
        cipher.init(mode, secret, paramSpec);
    } catch (Exception e) {
        e.printStackTrace(); //Todo implementovat
    }
    return cipher;
}

From source file:com.the_incognito.darry.incognitochatmessengertest.BouncyCastleImplementation.java

private static Key generateKeySpec(String key) throws NoSuchAlgorithmException, InvalidKeySpecException {
    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256", new BouncyCastleProvider());
    char password[] = key.toCharArray();
    byte salt[] = "salt".getBytes();
    KeySpec spec = new PBEKeySpec(password, salt, 65536, 128);
    SecretKey tmp = factory.generateSecret(spec);
    SecretKey secret = new SecretKeySpec(tmp.getEncoded(), "AES");
    return secret;
    //To change body of generated methods, choose Tools | Templates.
}

From source file:org.sakuli.services.cipher.AesCbcCipher.java

private static void checkCipherParameters(SecretKey aesKey, byte[] plaintext) throws SakuliCipherException {
    if (aesKey == null || aesKey.getEncoded() == null || aesKey.getEncoded().length == 0) {
        throw new SakuliCipherException("Provided AES key is null or empty");
    }// www  .j a  va 2s .  co m
    if (plaintext == null || plaintext.length == 0) {
        throw new SakuliCipherException("Empty secret can not en-/decrypted!");
    }
}

From source file:com.ro.ssc.app.client.licensing.TrialKeyGenerator.java

public static String generateKey(String toEncode) {

    String encoded = "";
    try {//from   w ww  .j a  va2  s .  c  om
        byte[] saltEncrypt = SALT_ENCRYPT.getBytes();
        SecretKeyFactory factoryKeyEncrypt = SecretKeyFactory.getInstance(SECRET_KEY_FACTORY);
        SecretKey tmp = factoryKeyEncrypt.generateSecret(
                new PBEKeySpec(PASS_ENCRYPT.toCharArray(), saltEncrypt, ITERATIONS_ENCRYPT, KEY_LENGTH));
        SecretKeySpec encryptKey = new SecretKeySpec(tmp.getEncoded(), ALGORITHM);
        Cipher aesCipherEncrypt = Cipher.getInstance(CIPHER);
        aesCipherEncrypt.init(Cipher.ENCRYPT_MODE, encryptKey);
        byte[] bytes = StringUtils.getBytesUtf8(toEncode);
        byte[] encryptBytes = aesCipherEncrypt.doFinal(bytes);
        encoded = Base64.encodeBase64URLSafeString(encryptBytes);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return encoded;
}

From source file:net.arccotangent.pacchat.crypto.MsgCrypto.java

public static String encryptAndSignMessage(String msg, PublicKey publicKey, PrivateKey privateKey) {
    mc_log.i("Encrypting and signing message.");
    SecretKey aes = AES.generateAESKey();

    assert aes != null;

    byte[] aesCryptedText = AES.encryptBytes(msg.getBytes(), aes);
    byte[] cryptedAesKey = RSA.encryptBytes(aes.getEncoded(), publicKey);

    byte[] signature = RSA.signBytes(cryptedAesKey, privateKey);

    String cryptedTextB64 = Base64.encodeBase64String(aesCryptedText);
    String cryptedKeyB64 = Base64.encodeBase64String(cryptedAesKey);
    String signatureB64 = Base64.encodeBase64String(signature);

    return cryptedKeyB64 + "\n" + cryptedTextB64 + "\n" + signatureB64;
}