Example usage for javax.crypto Cipher doFinal

Introduction

In this page you can find the example usage for javax.crypto Cipher doFinal.

Prototype

public final byte[] doFinal(byte[] input) throws IllegalBlockSizeException, BadPaddingException 

Source Link

Document

Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.

Usage

From source file:org.oscarehr.common.hl7.v2.oscar_to_oscar.SendingUtils.java

private static byte[] encryptData(byte[] dataBytes, SecretKey senderSecretKey) throws InvalidKeyException,
        NoSuchAlgorithmException, NoSuchPaddingException, IllegalBlockSizeException, BadPaddingException {
    SecretKeySpec secretKeySpec = new SecretKeySpec(senderSecretKey.getEncoded(), "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
    return (cipher.doFinal(dataBytes));
}

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

/**
 * AES?, ?./*from  www.  j  a va2 s.  c o  m*/
 * 
 * @param input 
 * @param key ?AES?
 * @param iv ???
 * @param mode Cipher.ENCRYPT_MODE  Cipher.DECRYPT_MODE
 */
private static byte[] aes(byte[] input, byte[] key, byte[] iv, int mode) {
    try {
        SecretKey secretKey = new SecretKeySpec(key, AES);
        IvParameterSpec ivSpec = new IvParameterSpec(iv);
        Cipher cipher = Cipher.getInstance(AES_CBC);
        cipher.init(mode, secretKey, ivSpec);
        return cipher.doFinal(input);
    } catch (GeneralSecurityException e) {
        throw Exceptions.unchecked(e);
    }
}

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From source file:com.liferay.sync.engine.lan.util.LanTokenUtil.java

public static String createEncryptedToken(String lanTokenKey) throws Exception {

    String lanToken = RandomStringUtils.random(32, 0, 0, true, true, null, _secureRandom);

    byte[] bytes = DigestUtils.sha1(lanTokenKey);

    bytes = Arrays.copyOf(bytes, 16);

    Cipher cipher = Cipher.getInstance("AES");

    cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(bytes, "AES"));

    String encryptedToken = Base64
            .encodeBase64String(cipher.doFinal(lanToken.getBytes(Charset.forName("UTF-8"))));

    _lanTokens.add(lanToken);//w w w  .  ja  v  a  2s  .  c o  m

    return encryptedToken;
}

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From source file:com.agiletec.aps.util.DefaultApsEncrypter.java

public static String decrypt(String source) {
    try {/*w ww.  ja va2 s  . c  o  m*/
        Key key = getKey();
        Cipher desCipher = Cipher.getInstance(TRIPLE_DES);
        byte[] dec = Base64.decodeBase64(source.getBytes());
        desCipher.init(Cipher.DECRYPT_MODE, key);
        byte[] cleartext = desCipher.doFinal(dec);
        // Return the clear text
        return new String(cleartext);
    } catch (Throwable t) {
        throw new RuntimeException("Error decrypting string", t);
    }
}

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From source file:com.bconomy.autobit.Encryption.java

public static byte[] encrypt(byte[] cleartext, byte[] key) {
    if (keySpec == null)
        keySpec = new SecretKeySpec(key, "AES");
    Cipher aes;
    try {//from w  ww  .j av  a  2s  . c  o  m
        aes = Cipher.getInstance("AES/ECB/PKCS5Padding");
        aes.init(Cipher.ENCRYPT_MODE, keySpec);
        return aes.doFinal(cleartext);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | IllegalBlockSizeException
            | BadPaddingException ex) {
        ex.printStackTrace();
    }
    return new byte[0];
}

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From source file:com.bconomy.autobit.Encryption.java

public static byte[] decrypt(byte[] cyphertext, byte[] key) {
    if (keySpec == null)
        keySpec = new SecretKeySpec(key, "AES");
    Cipher aes;
    try {/* w  w w. j  a va  2 s.c  om*/
        aes = Cipher.getInstance("AES/ECB/PKCS5Padding");
        aes.init(Cipher.DECRYPT_MODE, keySpec);
        return aes.doFinal(cyphertext);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | IllegalBlockSizeException
            | BadPaddingException ex) {
        ex.printStackTrace();
    }
    return new byte[0];
}

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From source file:com.cloud.utils.crypt.RSAHelper.java

public static String encryptWithSSHPublicKey(String sshPublicKey, String content) {
    String returnString = null;//from   w ww.j  a va2  s.c  om
    try {
        RSAPublicKey publicKey = readKey(sshPublicKey);
        Cipher cipher = Cipher.getInstance("RSA/None/PKCS1Padding", BouncyCastleProvider.PROVIDER_NAME);
        cipher.init(Cipher.ENCRYPT_MODE, publicKey, new SecureRandom());
        byte[] encrypted = cipher.doFinal(content.getBytes());
        returnString = Base64.encodeBase64String(encrypted);
    } catch (Exception e) {
    }

    return returnString;
}

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From source file:com.almende.util.EncryptionUtil.java

/**
 * Encrypt a string./*from w  w w .ja  v a 2s  .  c o  m*/
 * 
 * @param text
 *            the text
 * @return encryptedText
 * @throws InvalidKeyException
 *             the invalid key exception
 * @throws InvalidAlgorithmParameterException
 *             the invalid algorithm parameter exception
 * @throws NoSuchAlgorithmException
 *             the no such algorithm exception
 * @throws InvalidKeySpecException
 *             the invalid key spec exception
 * @throws NoSuchPaddingException
 *             the no such padding exception
 * @throws IllegalBlockSizeException
 *             the illegal block size exception
 * @throws BadPaddingException
 *             the bad padding exception
 * @throws UnsupportedEncodingException
 *             the unsupported encoding exception
 */
public static String encrypt(final String text) throws InvalidKeyException, InvalidAlgorithmParameterException,
        NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, IllegalBlockSizeException,
        BadPaddingException, UnsupportedEncodingException {
    final PBEParameterSpec pbeParamSpec = new PBEParameterSpec(S, C);
    final PBEKeySpec pbeKeySpec = new PBEKeySpec(P);
    final SecretKeyFactory keyFac = SecretKeyFactory.getInstance(ENC);
    final SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

    final Cipher pbeCipher = Cipher.getInstance(ENC);
    pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);

    final byte[] encryptedText = pbeCipher.doFinal(text.getBytes("UTF-8"));
    return Base64.encodeBase64String(encryptedText);
}

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From source file:com.feedzai.commons.sql.abstraction.util.AESHelper.java

/**
 * Decrypts a byte[] encrypted by {@link #encrypt} method.
 *
 * @param c   The encrypted HEX byte[].//from  w ww .  j  a v a 2 s. c  o  m
 * @param key The key.
 * @return The decrypted string in a byte[].
 */
public static byte[] decrypt(byte[] c, String key) {
    try {
        SecretKeySpec skeySpec = new SecretKeySpec(Hex.decodeHex(key.toCharArray()), "AES");
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec);
        return cipher.doFinal(Hex.decodeHex((new String(c).toCharArray())));
    } catch (Exception e) {
        logger.warn("Could not decrypt byte[]", e);
        return null;
    }
}

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From source file:com.tremolosecurity.provisioning.customTasks.CreateOTPKey.java

public static String generateEncryptedToken(String userID, GoogleAuthenticatorKey key, String hostName,
        ConfigManager cfg, String encryptionKey) throws ProvisioningException {
    TOTPKey totpkey = new TOTPKey();
    totpkey.setHost(hostName);//  ww w. j av a2  s.  co  m
    totpkey.setScratchCodes(key.getScratchCodes());
    totpkey.setSecretKey(key.getKey());
    totpkey.setUserName(userID);
    totpkey.setValidationCode(key.getVerificationCode());

    Gson gson = new Gson();
    String json = gson.toJson(totpkey);
    SecretKey sc = cfg.getSecretKey(encryptionKey);
    String attrVal = null;
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        baos.write(json.getBytes("UTF-8"));

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, sc);

        byte[] encJson = cipher.doFinal(baos.toByteArray());
        String base64d = new String(org.bouncycastle.util.encoders.Base64.encode(encJson));

        Token token = new Token();
        token.setEncryptedRequest(base64d);
        token.setIv(new String(org.bouncycastle.util.encoders.Base64.encode(cipher.getIV())));

        json = gson.toJson(token);
        attrVal = new String(org.bouncycastle.util.encoders.Base64.encode(json.getBytes("UTF-8")));

    } catch (Exception e) {
        throw new ProvisioningException("Could not encrypt key", e);
    }
    return attrVal;
}

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