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:com.lwr.software.reporter.utils.EncryptionUtil.java

public static String encrypt(String value) {
    try {/* w ww . j  a  v a 2  s  .com*/
        IvParameterSpec iv = new IvParameterSpec(
                DashboardConstants.INIT_VECTOR.getBytes(DashboardConstants.ENCODING));
        SecretKeySpec skeySpec = new SecretKeySpec(
                DashboardConstants.INIT_KEY.getBytes(DashboardConstants.ENCODING),
                DashboardConstants.ALGORITHM);
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
        byte[] encrypted = cipher.doFinal(value.getBytes());
        return Base64.encodeBase64String(encrypted);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static byte[] TriDesDecryption(byte[] byteKey, byte[] dec) {
    try {/*from   w  ww  . j  av a 2  s.  co m*/
        byte[] en_key = new byte[24];
        if (byteKey.length == 16) {
            System.arraycopy(byteKey, 0, en_key, 0, 16);
            System.arraycopy(byteKey, 0, en_key, 16, 8);
        }
        SecretKey key = new SecretKeySpec(en_key, "DESede");
        Cipher dcipher = Cipher.getInstance("DESede/ECB/NoPadding");
        dcipher.init(Cipher.DECRYPT_MODE, key);

        byte[] de_b = dcipher.doFinal(dec);

        return de_b;
    } catch (Exception e) {
        e.printStackTrace();

    }
    return null;
}

From source file:com.esri.geoevent.datastore.Crypto.java

static public String doEncrypt(String stringToEncrypt) throws GeneralSecurityException {
    Cipher c = Cipher.getInstance(ALGO);
    c.init(Cipher.ENCRYPT_MODE, encryptionKey);
    byte[] encVal = c.doFinal(stringToEncrypt.getBytes());
    String encodedEncryptedString = new String(Base64.encodeBase64(encVal));
    return encodedEncryptedString;
}

From source file:Main.java

public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128, new SecureRandom(encryptKey.getBytes()));

    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES"));

    return cipher.doFinal(content.getBytes("utf-8"));
}

From source file:br.com.manish.ahy.kernel.util.HashUtil.java

public static String enc(String text) {
    String ret = null;/*from ww  w .  jav  a  2  s. com*/
    try {
        Cipher cipher = getCipher(true);
        byte[] encr = cipher.doFinal(text.getBytes());
        ret = getHex(encr);
    } catch (Exception e) {
        log.error(e);
        throw new OopsException(e, "Enc Error.");
    }

    return ret;

}

From source file:br.com.manish.ahy.kernel.util.HashUtil.java

public static String dec(String text) {
    String ret = null;//  ww  w .j  a va 2s  .c  o  m
    try {
        Cipher cipher = getCipher(false);
        byte[] orig = cipher.doFinal(getBytes(text));
        ret = new String(orig);
    } catch (Exception e) {
        log.error(e);
        throw new OopsException(e, "Dec Error.");
    }

    return ret;
}

From source file:io.cloudslang.content.database.utils.TripleDES.java

static byte[] encryptString(final byte[] text) throws Exception {
    final SecretKey key = new SecretKeySpec(
            TripleDES.md5Hash("NpWsCaJQj1LaXt)YYnzr\\%zP~RydB*3YGutr*@|A\\ckG3\\Yf%k"), ENCRYPTION_KEYSPECTYPE);
    final Cipher cipher = Cipher.getInstance(ENCRYPTION_MODE);
    cipher.init(Cipher.ENCRYPT_MODE, key);
    return cipher.doFinal(text);
}

From source file:Main.java

private static byte[] Rsa(byte[] byteData, Key pKey, int opmode) throws Exception {
    Cipher cipher = null;
    try {/*from   w w  w .  j  a  v  a2 s. c o m*/
        cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
        cipher.init(opmode, pKey);

        return cipher.doFinal(byteData);
    } finally {
        cipher = null;
    }
}

From source file:com.lecaddyfute.utils.security.AESCrypto.java

public static String encrypt(String Data) throws Exception {
    Key key = generateKey();//from  w  w  w .  j av  a 2 s . c o m
    Cipher c = Cipher.getInstance(ALGO);
    c.init(Cipher.ENCRYPT_MODE, key);
    byte[] encVal = c.doFinal(Data.getBytes());
    String encryptedValue = new String(Base64.encodeBase64(encVal));
    return encryptedValue;
}

From source file:com.netsteadfast.greenstep.util.EncryptorUtils.java

public static String decrypt(String key1, String iv1, String encrypted) {
    try {/*from   w  ww.j  av  a  2  s . c om*/
        IvParameterSpec iv = new IvParameterSpec(iv1.getBytes(Constants.BASE_ENCODING));
        SecretKeySpec skeySpec = new SecretKeySpec(key1.getBytes(Constants.BASE_ENCODING), "AES");
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
        byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
        return new String(original);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}