Example usage for javax.crypto Cipher ENCRYPT_MODE

Introduction

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

Prototype

int ENCRYPT_MODE

To view the source code for javax.crypto Cipher ENCRYPT_MODE.

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Document

Constant used to initialize cipher to encryption mode.

Usage

From source file:hudson.util.Protector.java

public static String protect(String secret) {
    try {// www.jav  a 2  s . c o  m
        Cipher cipher = Secret.getCipher(ALGORITHM);
        cipher.init(Cipher.ENCRYPT_MODE, DES_KEY);
        return new String(Base64.encodeBase64(cipher.doFinal((secret + MAGIC).getBytes("UTF-8"))));
    } catch (GeneralSecurityException e) {
        throw new Error(e); // impossible
    } catch (UnsupportedEncodingException e) {
        throw new Error(e); // impossible
    }
}

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From source file:Main.java

/**
 * Encrypts message string using a given symmetric key.
 * @param msg Message string to encrypt.
 * @param key Key to encrypt message with.
 * @return Byte array of encrypted and encoded message.
 * @throws NoSuchAlgorithmException/* w w w .ja v a 2 s.co m*/
 * @throws NoSuchPaddingException
 * @throws InvalidKeyException
 * @throws IllegalBlockSizeException
 * @throws BadPaddingException
 * @throws InvalidAlgorithmParameterException
 */
public static byte[] encryptMessage(String msg, SecretKey key)
        throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException,
        BadPaddingException, InvalidAlgorithmParameterException {
    Cipher cipher = Cipher.getInstance("AES");
    byte[] init = new byte[128 / 8];
    //SecureRandom secureRandom = new SecureRandom();
    //secureRandom.nextBytes(init);
    for (int i = 0; i < 16; i++)
        init[i] = 0;
    cipher.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(init));
    byte[] msgBytes = msg.getBytes();
    //System.out.println(android.util.Base64.encode(msgBytes, Base64.DEFAULT));
    byte[] msgCipherBytes = cipher.doFinal(msgBytes);
    return msgCipherBytes;
}

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From source file:Main.java

public static byte[] encryptMsg(String msg, RSAPublicKeySpec pubKeySpec) {
    if (msg != null && pubKeySpec != null && !msg.isEmpty()) {
        try {//from   www .j  a  v a2s .c o  m
            Log.w(TAG, "msg is: " + msg + " with length " + msg.length());
            KeyFactory fact = KeyFactory.getInstance("RSA");

            PublicKey pubKey = fact.generatePublic(pubKeySpec);

            // TODO encrypt the message and send it
            // Cipher cipher = Cipher.getInstance("RSA/None/NoPadding");
            Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
            // Cipher cipher =
            // Cipher.getInstance("RSA/None/OAEPWithSHA1AndMGF1Padding",
            // "BC");
            cipher.init(Cipher.ENCRYPT_MODE, pubKey);
            Log.d(TAG, "cipher block size is " + cipher.getBlockSize());
            byte[] msgByteArray = msg.getBytes();
            byte[] cipherData = new byte[cipher.getOutputSize(msgByteArray.length)];
            cipherData = cipher.doFinal(msgByteArray);
            Log.d(TAG, "output size is " + cipher.getOutputSize(msgByteArray.length));
            Log.d(TAG, "is the measurement already broken into chunks here? " + (new String(cipherData)));
            return cipherData;

        } catch (NoSuchAlgorithmException e) {
            Log.e(TAG, "RSA algorithm not available", e);
        } catch (InvalidKeySpecException e) {
            Log.e(TAG, "", e);
        } catch (NoSuchPaddingException e) {
            Log.e(TAG, "", e);
        } catch (InvalidKeyException e) {
            Log.e(TAG, "", e);
        } catch (BadPaddingException e) {
            Log.e(TAG, "", e);
        } catch (IllegalBlockSizeException e) {
            Log.e(TAG, "", e);
        } catch (Exception e) {
            Log.e(TAG, "", e);
        } /*
           * catch (NoSuchProviderException e) { Log.e(TAG, "", e); }
           */
    }
    return null;
}

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From source file:com.aerohive.nms.engine.admin.task.licensemgr.license.processor2.PacketUtil.java

private static byte[] encryptData(byte[] content) {
    byte[] outBytes = null;

    try {/*from   w w  w . jav  a  2 s  .c  om*/
        Key key = new SecretKeySpec(secret_key, "DESede");

        Cipher cipher = Cipher.getInstance("DESede", "SunJCE");

        cipher.init(Cipher.ENCRYPT_MODE, key, cipher.getParameters());

        outBytes = cipher.doFinal(content);

    } catch (Exception ex) {
        //log.error("PacketUtil",ex.getMessage(), ex);
        return outBytes;
    }

    return outBytes;
}

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From source file:com.example.license.RSAUtil.java

/**
 * ?/*from  ww  w .ja v a  2 s . co  m*/
 * 
 * @param data
 *            ?
 * @param key
 *            
 * @return ??
 */
public static String encrypt(String data, String seed) throws Exception {
    KeyPair keyPair = generatorKeyPair(seed);
    // Cipher??
    Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
    // SecureRandom random = new SecureRandom();
    // ?Cipher?
    cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPrivate());
    byte[] results = cipher.doFinal(data.getBytes());
    // http://tripledes.online-domain-tools.com/??
    for (int i = 0; i < results.length; i++) {
        System.out.print(results[i] + " ");
    }
    System.out.println();
    // ??Base64?
    return Base64.encodeBase64String(results);
}

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From source file:Main.java

public static byte[] encipherAes256(byte[] clearText, String keyString) throws NullPointerException {
    if (keyString == null || keyString.length() == 0) {
        throw new NullPointerException("Please give Password");
    }//from  w ww  .j  av  a 2  s  . c om

    if (clearText == null || clearText.length <= 0) {
        throw new NullPointerException("Please give clearText");
    }

    try {
        SecretKeySpec skeySpec = getKey(keyString);

        // IMPORTANT TO GET SAME RESULTS ON iOS and ANDROID
        final byte[] iv = new byte[16];
        Arrays.fill(iv, (byte) 0x00);
        IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);

        // Cipher is not thread safe
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, ivParameterSpec);

        return cipher.doFinal(clearText);

    } catch (InvalidKeyException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (BadPaddingException e) {
        e.printStackTrace();
    } catch (NoSuchPaddingException e) {
        e.printStackTrace();
    } catch (IllegalBlockSizeException e) {
        e.printStackTrace();
    } catch (InvalidAlgorithmParameterException e) {
        e.printStackTrace();
    }
    return null;
}

---

From source file:com.juicioenlinea.application.secutiry.Security.java

public static String encriptar(String texto) {

    final String secretKey = "hunter"; //llave para encriptar datos
    String encryptedString = null;

    try {/*from w w w.j a  v  a 2s .  c  o  m*/

        MessageDigest md = MessageDigest.getInstance("SHA");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("UTF-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);

        SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        Cipher cipher = Cipher.getInstance("DESede");
        cipher.init(Cipher.ENCRYPT_MODE, key);

        byte[] plainTextBytes = texto.getBytes("UTF-8");
        byte[] buf = cipher.doFinal(plainTextBytes);
        byte[] base64Bytes = Base64.encodeBase64(buf);
        encryptedString = new String(base64Bytes);

    } catch (NoSuchAlgorithmException | UnsupportedEncodingException | NoSuchPaddingException
            | InvalidKeyException | IllegalBlockSizeException | BadPaddingException ex) {
        Logger.getLogger(Security.class.getName()).log(Level.SEVERE, null, ex);
    }
    return encryptedString;
}

---

From source file:com.doculibre.constellio.utils.aes.SimpleProtector.java

public static String encrypt(String valueToEnc) throws Exception {
    Key key = generateKey();/*  w w w . ja v a  2 s .  com*/
    Cipher c = Cipher.getInstance(ALGORITHM);
    c.init(Cipher.ENCRYPT_MODE, key);
    byte[] encValue = c.doFinal(valueToEnc.getBytes());
    String encryptedValue = Base64.encodeBase64String(encValue);
    return encryptedValue;
}

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From source file:com.lingxiang2014.util.RSAUtils.java

public static byte[] encrypt(PublicKey publicKey, byte[] data) {
    Assert.notNull(publicKey);//ww  w .  j  a v a 2s. co m
    Assert.notNull(data);
    try {
        Cipher cipher = Cipher.getInstance("RSA", PROVIDER);
        cipher.init(Cipher.ENCRYPT_MODE, publicKey);
        return cipher.doFinal(data);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

---

From source file:com.java.demo.DesDemo.java

public static byte[] Encrypt(String str) {
    try {/*from w  w  w .  jav  a  2  s. com*/
        Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, convertSecretKey);
        byte[] result = cipher.doFinal(str.getBytes());
        return result;

    } catch (Exception e) {
        return null;
    }
}

---

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