Example usage for javax.crypto Cipher doFinal

List of usage examples for javax.crypto Cipher doFinal

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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.lingxiang2014.util.RSAUtils.java

public static byte[] encrypt(PublicKey publicKey, byte[] data) {
    Assert.notNull(publicKey);/*from w  w w. j a  v  a  2  s  .c om*/
    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:love.sola.netsupport.util.RSAUtil.java

public static String encrypt(String value) {
    try {//from  www. j  av  a 2  s . co  m
        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.ENCRYPT_MODE, publicKey);
        byte[] encrypted = cipher.doFinal(value.getBytes(StandardCharsets.UTF_8));
        return Base64.encodeBase64String(encrypted);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}

From source file:love.sola.netsupport.util.RSAUtil.java

public static String decrypt(String encrypted) {
    try {//from   w  w w.ja  v  a 2s.c  om
        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.DECRYPT_MODE, privateKey);
        byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
        return new String(original, StandardCharsets.UTF_8);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}

From source file:com.wso2telco.gsma.authenticators.cryptosystem.AESencrp.java

/**
 * Encrypt.//from   w  w w  . ja v  a 2  s  . c  om
 *
 * @param Data the data
 * @return the string
 * @throws Exception the exception
 */
public static String encrypt(String Data) throws Exception {
    Key key = generateKey();
    Cipher c = Cipher.getInstance(ALGO);
    c.init(Cipher.ENCRYPT_MODE, key);
    byte[] encVal = c.doFinal(Data.getBytes());
    //String encryptedValue = new BASE64Encoder().encode(encVal);
    byte[] encryptedValue = Base64.encodeBase64(encVal);
    return new String(encryptedValue);
}

From source file:lib.clases_cripto.java

public static String Desencriptar(String textoEncriptado) throws Exception {

    String secretKey = "qualityinfosolutions"; //llave para desenciptar datos
    String base64EncryptedString = "";

    try {/*from  w ww  .  jav  a2s. co  m*/
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");

        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key);

        byte[] plainText = decipher.doFinal(message);

        base64EncryptedString = new String(plainText, "UTF-8");

    } catch (Exception ex) {
    }
    return base64EncryptedString;
}

From source file:BD.Encriptador.java

public static String Desencriptar(String textoEncriptado) throws Exception {

    String secretKey = "qualityinfosolutions"; //llave para encriptar datos
    String base64EncryptedString = "";

    try {/*from  w  w w  . j  a  v  a  2 s .c o  m*/
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");

        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key);

        byte[] plainText = decipher.doFinal(message);

        base64EncryptedString = new String(plainText, "UTF-8");

    } catch (Exception ex) {
    }
    return base64EncryptedString;
}

From source file:com.tydic.dbp.utils.ThreeDesUtils.java

public static String encryptMode(String Src) {
    try {//ww  w.j  a va 2 s. c  o m
        // ?
        SecretKey deskey = new SecretKeySpec(keyBytes, Algorithm);
        // 
        Cipher c1 = Cipher.getInstance(Algorithm);
        c1.init(Cipher.ENCRYPT_MODE, deskey);
        return Hex.encodeHexString(c1.doFinal(Src.getBytes()));
    } catch (java.security.NoSuchAlgorithmException e1) {
        e1.printStackTrace();
    } catch (javax.crypto.NoSuchPaddingException e2) {
        e2.printStackTrace();
    } catch (java.lang.Exception e3) {
        e3.printStackTrace();
    }
    return null;
}

From source file:controlpac.EncryptHelper.java

public static String Desencriptar(String textoEncriptado) {
    String base64EncryptedString = "";
    try {//from   w  w w.ja v a2  s .c o  m
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));//Desencodea el texto en base64
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8")); //Crea un hash con la clave elegida
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");//Crea la clave 
        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key); //Inicia el descifrado
        byte[] plainText = decipher.doFinal(message);//Descifra el texto
        base64EncryptedString = new String(plainText, "UTF-8");
    } catch (Exception ex) {
    }
    return base64EncryptedString;
}

From source file:com.wso2telco.proxy.util.DecryptAES.java

public static String decrypt(String encryptedText) throws NoSuchPaddingException, NoSuchAlgorithmException,
        InvalidKeyException, BadPaddingException, IllegalBlockSizeException, ConfigurationException {
    if (encryptionKey != null) {
        byte[] encryptionKeyByteValue = encryptionKey.getBytes();
        SecretKey secretKey = new SecretKeySpec(encryptionKeyByteValue, AuthProxyConstants.ASE_KEY);
        String decryptedText = null;
        if (encryptedText != null) {
            byte[] encryptedTextByte = Base64.decodeBase64(encryptedText);
            Cipher cipher = Cipher.getInstance("AES");

            cipher.init(Cipher.DECRYPT_MODE, secretKey);
            byte[] decryptedByte = cipher.doFinal(encryptedTextByte);
            decryptedText = new String(decryptedByte);
        }/*from  w w  w  .  ja v  a  2s.co m*/
        return decryptedText;
    } else {
        throw new ConfigurationException("MSISDN EncryptionKey could not be found in mobile-connect.xml");
    }
}

From source file:licenceexecuter.Encryptor.java

public static String encrypt(String key, String initVector, String value) {
    try {//from  ww  w  .j a v  a 2 s .com
        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());
        return Base64.encodeBase64String(encrypted);
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return null;
}