Example usage for javax.crypto.spec SecretKeySpec SecretKeySpec

Introduction

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

Prototype

public SecretKeySpec(byte[] key, String algorithm)

Source Link

Document

Constructs a secret key from the given byte array.

Usage

From source file:de.hybris.platform.b2b.punchout.services.impl.SymmetricManager.java

public static String encrypt(final String unsecureText, final String key) throws PunchOutCipherException {
    String encrypted = null;/*from  www .  ja va  2s .  c o  m*/
    try {
        final Key skeySpec = new SecretKeySpec(new Base64().decode(key), ALGORITHM);
        final Cipher cipher = Cipher.getInstance(ALGORITHM);
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);

        final byte[] encryptedValue = cipher.doFinal(unsecureText.getBytes());
        encrypted = new Base64().encodeAsString(encryptedValue);
    } catch (final NoSuchAlgorithmException | NoSuchPaddingException e) {
        // should never happen
        LOG.error("System was unable instantiate Cipher.", e);
    } catch (InvalidKeyException | BadPaddingException | IllegalBlockSizeException e) {
        final String msg = "Error occured during encryption." + e.getMessage();
        LOG.error(msg);
        throw new PunchOutCipherException(msg, e);
    }

    return encrypted;
}

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

public static String encryptMode(String Src) {
    try {/*from w  ww  .  j  av a  2s.com*/
        // ?
        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:Main.java

public static void decrypt(String fileIn, String fileOut, byte key[])
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
    FileInputStream fis = new FileInputStream(fileIn);
    FileOutputStream fos = new FileOutputStream(fileOut);

    // Length is 32 bytes
    //byte key[] = "1010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100001111000011".getBytes("UTF-8");
    MessageDigest sha = MessageDigest.getInstance("SHA-256");
    key = sha.digest(key);/*from  www  .java 2 s. c  o  m*/
    SecretKeySpec sks = new SecretKeySpec(key, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, sks);

    CipherInputStream cis = new CipherInputStream(fis, cipher);
    int b;
    byte[] d = new byte[8];
    while ((b = cis.read(d)) != -1) {
        fos.write(d, 0, b);
    }

    fos.flush();
    fos.close();
    cis.close();
}

From source file:crocserver.app.CrocSecurity.java

public static Mac createHmac(byte[] secret) throws Exception {
    Mac mac = Mac.getInstance("HmacSHA1");
    SecretKeySpec signKey = new SecretKeySpec(secret, "HmacSHA1");
    mac.init(signKey);/* www  .j a  v  a 2s .c om*/
    return mac;
}

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

/**
 * Encrypts a string.// w  w w.  j a v  a  2s. c  o m
 *
 * @param c The string to encrypt.
 * @return The encrypted string in HEX.
 */
public static String encrypt(String c, String key) {
    try {
        SecretKeySpec skeySpec = new SecretKeySpec(Hex.decodeHex(key.toCharArray()), "AES");
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
        byte[] encoded = cipher.doFinal(c.getBytes());
        return new String(Hex.encodeHex(encoded));

    } catch (Exception e) {
        logger.warn("Could not encrypt string", e);
        return null;
    }
}

From source file:com.kixeye.chassis.transport.crypto.SymmetricKeyCryptoUtils.java

/**
 * Loads a raw secret key.//from   w w w . ja  va 2s  .c om
 * 
 * @param key
 * @param keyAlgorithm
 * @return
 * @throws GeneralSecurityException
 */
public static Key loadRawSecretKey(byte[] key, String keyAlgorithm) throws GeneralSecurityException {
    return new SecretKeySpec(key, keyAlgorithm);
}

From source file:com.app.utils.StringEncrypt.java

/**
 * Funcin de tipo String que recibe una llave (key), un vector de inicializacin (iv)
 * y el texto que se desea cifrar/* w  w w .j  a v a 2  s .c o  m*/
 * @param key la llave en tipo String a utilizar
 * @param iv el vector de inicializacin a utilizar
 * @param cleartext el texto sin cifrar a encriptar
 * @return el texto cifrado en modo String
 * @throws Exception puede devolver excepciones de los siguientes tipos: NoSuchAlgorithmException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException, NoSuchPaddingException
 */
public static String encrypt(String key, String iv, 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.fpt.crypto.CipherDemo.java

public static String decrypt(String in, String key) throws NoSuchAlgorithmException, NoSuchPaddingException,
        InvalidKeyException, IllegalBlockSizeException, BadPaddingException, DecoderException {
    Cipher cipher = Cipher.getInstance("AES");
    byte[] inputBytes = Hex.decodeHex(in.toCharArray());
    SecretKey secKey = new SecretKeySpec(key.getBytes(), "AES");
    cipher.init(Cipher.DECRYPT_MODE, secKey);
    byte[] outputBytes = cipher.doFinal(inputBytes);
    return new String(outputBytes);

}

From source file:D_common.E_ncript.java

public static byte[] encrypt(byte[] data, String keyStr) {
    try {/*w  w w  .ja  v a2 s . c o  m*/
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        final SecretKeySpec secretKey = new SecretKeySpec(makeAESKey(keyStr), "AES");
        cipher.init(Cipher.ENCRYPT_MODE, secretKey);
        return cipher.doFinal(data);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

/**
 * /*w w  w  . jav  a  2s .co m*/
 * Get Private Key or return null.
 * 
 * @param account
 *            the account we're syncing
 * @return Private Key
 */
public static SecretKey getPrivateKey(Account account, AccountManager accountManager) {
    // TODO: Redesign more secure location to safe private key?
    String keyString = accountManager.getUserData(account, PRIVATE_KEY);
    SecretKey key = null;
    if (!TextUtils.isEmpty(keyString)) {
        key = new SecretKeySpec(Base64.decode(keyString, Base64.DEFAULT), "AES");
    }
    return key;
}