Example usage for javax.crypto.spec IvParameterSpec IvParameterSpec

Introduction

In this page you can find the example usage for javax.crypto.spec IvParameterSpec IvParameterSpec.

Prototype

public IvParameterSpec(byte[] iv)

Source Link

Document

Creates an IvParameterSpec object using the bytes in iv as the IV.

Usage

From source file:Main.java

public static byte[] getEncCode(byte[] byteE, String seed) {
    byte[] byteFina = null;
    Cipher cipher = null;//from  ww w.  ja v a 2 s .  com

    try {
        SecretKeySpec skeySpec = new SecretKeySpec(getRawKey(seed.getBytes()), "AES");

        cipher = Cipher.getInstance("AES/CFB/NoPadding");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(new byte[cipher.getBlockSize()]));
        //cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(new byte[cipher.getBlockSize()]));
        byteFina = cipher.doFinal(byteE);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        cipher = null;
    }

    return byteFina;
}

From source file:EncDec.AES.java

public static String encrypt(String key, String initVector, String value) {
    try {/*from   w w w  .  j  ava2 s  . c o m*/
        IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
        SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);

        byte[] encrypted = cipher.doFinal(value.getBytes());
        //System.out.println("encrypted string: "
        //        + Base64.encodeBase64String(encrypted));

        return Base64.encodeBase64String(encrypted);
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return null;
}

From source file:org.cifssynchronizer.core.Security.java

public static String encrypt(String key1, String key2, String value) {
    String str = null;/* w  ww. j  ava  2s  .c o m*/

    try {
        IvParameterSpec iv = new IvParameterSpec(key2.getBytes("UTF-8"));
        SecretKeySpec skeySpec = new SecretKeySpec(key1.getBytes("UTF-8"), "AES");
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
        byte[] encrypted = cipher.doFinal(value.getBytes());

        str = Base64.encodeBase64String(encrypted);
    } catch (Exception ignored) {
    }

    return str;
}

From source file:authentication.AES.java

public static String encrypt(String textopuro) throws Exception {
    Cipher encripta = Cipher.getInstance("AES/CBC/PKCS5Padding", "SunJCE");
    SecretKeySpec key = new SecretKeySpec(chaveencriptacao.getBytes("UTF-8"), "AES");
    encripta.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(IV.getBytes("UTF-8")));
    byte[] a = encripta.doFinal(textopuro.getBytes("UTF-8"));
    return StringUtils.newStringUtf8(Base64.encodeBase64(a, false));
}

From source file:Encrypt.java

private static String decrypt(String message) throws Exception {
    byte[] bytesrc = convertHexString(message);
    Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
    DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
    IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));

    cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
    byte[] retByte = cipher.doFinal(bytesrc);
    return new String(retByte);
}

From source file:clases.Seguridad.java

public static String encriptar(String cleartext) throws Exception {
    Cipher cipher = Cipher.getInstance(CI);
    SecretKeySpec skeySpec = new SecretKeySpec(KEY.getBytes(), ALG);
    IvParameterSpec ivParameterSpec = new IvParameterSpec(IV.getBytes());
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec, ivParameterSpec);
    byte[] encrypted = cipher.doFinal(cleartext.getBytes());
    return new String(encodeBase64(encrypted));
}

From source file:com.avbravo.avbravoutils.crypto.Encriptador.java

public static String encrypt(String key, String cleartext) throws Exception {

    Cipher cipher = Cipher.getInstance(cI);
    SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(), alg);
    IvParameterSpec ivParameterSpec = new IvParameterSpec(iv.getBytes());
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec, ivParameterSpec);
    byte[] encrypted = cipher.doFinal(cleartext.getBytes());
    return new String(encodeBase64(encrypted));
}

From source file:Controller.StringEncrypt.java

public final static String encrypt(String cleartext) {
    byte[] encrypted = null;
    try {//ww  w .  j  a  va  2  s. co m
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        SecretKeySpec skeySpec = new SecretKeySpec("92AE31A79FEEB2A3".getBytes(), "AES");
        IvParameterSpec ivParameterSpec = new IvParameterSpec("0123456789ABCDEF".getBytes());
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, ivParameterSpec);
        encrypted = cipher.doFinal(cleartext.getBytes());
    } catch (InvalidAlgorithmParameterException | InvalidKeyException | NoSuchAlgorithmException
            | BadPaddingException | IllegalBlockSizeException | NoSuchPaddingException e) {
        JOptionPane.showMessageDialog(null, "Error encriptando contrasea");
    }
    return new String(encodeBase64(encrypted));
}

From source file:com.lwr.software.reporter.utils.EncryptionUtil.java

public static String encrypt(String value) {
    try {/*from ww w.  j  ava 2  s .  c  om*/
        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[] encipherAes256(byte[] clearText, String keyString) throws NullPointerException {
    if (keyString == null || keyString.length() == 0) {
        throw new NullPointerException("Please give Password");
    }// w w  w.  ja v  a2 s.  c o  m

    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;
}