Example usage for javax.crypto.spec PBEParameterSpec PBEParameterSpec

Introduction

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

Prototype

public PBEParameterSpec(byte[] salt, int iterationCount) 

Source Link

Document

Constructs a parameter set for password-based encryption as defined in the PKCS #5 standard.

Usage

From source file:org.openintents.safe.CryptoHelper.java

/**
 * Initialize the class.  Sets the encryption level for the instance
 * and generates the secret key factory.
 *
 * @param Strength// w w w  . j a v  a 2 s  .c om
 */
private void initialize(int Strength) {
    switch (Strength) {
    case EncryptionMedium:
        algorithm = algorithmMedium;
        break;
    case EncryptionStrong:
        algorithm = algorithmStrong;
        break;
    }
    pbeParamSpec = new PBEParameterSpec(salt, count);
    try {
        keyFac = SecretKeyFactory.getInstance(algorithm, "BC");
    } catch (NoSuchAlgorithmException e) {
        Log.e(TAG, "CryptoHelper(): " + e.toString());
    } catch (NoSuchProviderException e) {
        Log.e(TAG, "CryptoHelper(): " + e.toString());
    }
}

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From source file:org.hawk.core.security.FileBasedCredentialsStore.java

private String encrypt(String property) throws GeneralSecurityException, UnsupportedEncodingException {

    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
    SecretKey key = keyFactory.generateSecret(new PBEKeySpec(encryptionKey));
    Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
    pbeCipher.init(Cipher.ENCRYPT_MODE, key, new PBEParameterSpec(salt, 20));
    return base64Encode(pbeCipher.doFinal(property.getBytes("UTF-8")));
}

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From source file:com.asquareb.kaaval.MachineKey.java

/**
 * Method to encrypt a string. Accepts the string to be encrypted and the
 * name of the file to store the key vale which can be used for decryption
 *///from w w w .  j av  a2s.c o m
public static String encrypt(String property, String app) throws IOException, KaavalException {

    InetAddress ip = null;
    String ipAddress = null;
    ObjectOutputStream os = null;
    NetworkInterface macAddress = null;
    byte[] macId = null;
    Cipher pbeCipher = null;
    Random rand = new Random();
    rand.nextBytes(salt);
    try {
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey key = keyFactory.generateSecret(new PBEKeySpec(password));
        ip = InetAddress.getLocalHost();
        ipAddress = ip.getHostAddress();
        macAddress = NetworkInterface.getByInetAddress(ip);
        macId = macAddress.getHardwareAddress();
        MachineKey mKey = new MachineKey();
        mKey.api = ipAddress;
        mKey.macad = new String(macId);
        mKey.yek = key;
        mKey.tlas = salt;
        mKey.eti = rand.nextInt(1000);
        os = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream(app)));
        os.writeObject(mKey);
        os.close();
        pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
        pbeCipher.init(Cipher.ENCRYPT_MODE, key, new PBEParameterSpec(salt, mKey.eti));
        return base64Encode(pbeCipher.doFinal(property.getBytes()));
    } catch (IOException e) {
        throw new KaavalException(1, "Error in key file during encryption", e);
    } catch (Exception e) {
        throw new KaavalException(2, "Errors during encryption", e);
    } finally {
        if (os != null)
            os.close();
    }
}

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From source file:de.alpharogroup.crypto.simple.SimpleDecryptor.java

/**
 * Initializes the {@link SimpleDecryptor} object.
 *
 * @throws InvalidAlgorithmParameterException
 *             is thrown if initialization of the cypher object fails.
 * @throws NoSuchPaddingException//from  ww  w.j a v a2 s . co m
 *             is thrown if instantiation of the cypher object fails.
 * @throws InvalidKeySpecException
 *             is thrown if generation of the SecretKey object fails.
 * @throws NoSuchAlgorithmException
 *             is thrown if instantiation of the SecretKeyFactory object fails.
 * @throws InvalidKeyException
 *             is thrown if initialization of the cypher object fails.
 */
private void initialize() throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
        InvalidKeyException, InvalidAlgorithmParameterException {
    if (!isInitialized()) {
        KeySpec keySpec = null;
        if (this.getPrivateKey() != null) {
            keySpec = new PBEKeySpec(this.getPrivateKey().toCharArray());
        }
        if (this.getPrivateKey() == null) {
            keySpec = new PBEKeySpec(CryptConst.PRIVATE_KEY.toCharArray());
        }
        final SecretKeyFactory factory = SecretKeyFactory.getInstance(CryptConst.PBEWITH_MD5AND_DES);
        final SecretKey key = factory.generateSecret(keySpec);
        this.cipher = Cipher.getInstance(key.getAlgorithm());
        final AlgorithmParameterSpec paramSpec = new PBEParameterSpec(CryptConst.SALT,
                CryptConst.ITERATIONCOUNT);
        this.cipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
        initialized = true;
    }
}

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From source file:de.alpharogroup.crypto.simple.SimpleEncryptor.java

/**
 * Initializes the {@link SimpleEncryptor} object.
 * /*from ww w.ja v  a 2 s  .  c om*/
 * @throws InvalidAlgorithmParameterException
 *             is thrown if initialization of the cypher object fails.
 * @throws NoSuchPaddingException
 *             is thrown if instantiation of the cypher object fails.
 * @throws InvalidKeySpecException
 *             is thrown if generation of the SecretKey object fails.
 * @throws NoSuchAlgorithmException
 *             is thrown if instantiation of the SecretKeyFactory object fails.
 * @throws InvalidKeyException
 *             is thrown if initialization of the cypher object fails.
 */
private void initialize() throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
        InvalidKeyException, InvalidAlgorithmParameterException {
    if (!isInitialized()) {
        final KeySpec keySpec;
        if (this.getPrivateKey() != null) {
            keySpec = new PBEKeySpec(this.getPrivateKey().toCharArray());
        } else {
            keySpec = new PBEKeySpec(CryptConst.PRIVATE_KEY.toCharArray());
        }
        final SecretKeyFactory factory = SecretKeyFactory.getInstance(CryptConst.PBEWITH_MD5AND_DES);
        final SecretKey key = factory.generateSecret(keySpec);
        this.cipher = Cipher.getInstance(key.getAlgorithm());
        final AlgorithmParameterSpec paramSpec = new PBEParameterSpec(CryptConst.SALT,
                CryptConst.ITERATIONCOUNT);
        this.cipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        initialized = true;
    }
}

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From source file:org.jasig.portlet.courses.dao.xml.SecureRequestCredentials.java

private static Cipher getCipher(String username, int opmode) {
    final Cipher cipher;
    try {//from   ww w .  j  ava  2s.  c  o  m
        cipher = Cipher.getInstance(PASSWORD_ALGORITHM);
    } catch (NoSuchAlgorithmException e) {
        throw new Error("Failed to create Cipher for algorithm '" + PASSWORD_ALGORITHM + "'. "
                + SecureRequestCredentials.class.getSimpleName() + " will not work", e);
    } catch (NoSuchPaddingException e) {
        throw new Error("Failed to create Cipher for algorithm '" + PASSWORD_ALGORITHM + "'. "
                + SecureRequestCredentials.class.getSimpleName() + " will not work", e);
    }

    final byte[] salt = getSalt(username);
    final PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, ITERATIONS);
    try {
        cipher.init(opmode, SECRET_KEY, pbeParamSpec);
    } catch (InvalidKeyException e) {
        throw new Error("Failed to init Cipher for SecretKey '" + SECRET_KEY + "'. "
                + SecureRequestCredentials.class.getSimpleName() + " will not work", e);
    } catch (InvalidAlgorithmParameterException e) {
        throw new Error("Failed to init Cipher for PBEParameterSpec '" + pbeParamSpec + "'. "
                + SecureRequestCredentials.class.getSimpleName() + " will not work", e);
    }

    return cipher;
}

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From source file:org.hawk.core.security.FileBasedCredentialsStore.java

private String decrypt(String property) throws GeneralSecurityException, IOException {
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
    SecretKey key = keyFactory.generateSecret(new PBEKeySpec(encryptionKey));
    Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
    pbeCipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(salt, 20));
    return new String(pbeCipher.doFinal(base64Decode(property)), "UTF-8");
}

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From source file:org.jets3t.service.security.EncryptionUtil.java

/**
 * Constructs class configured with the provided password, and set up to use the encryption
 * method specified.//from  www  .j ava2s.  c  om
 *
 * @param encryptionKey
 *        the password to use for encryption/decryption.
 * @param algorithm
 *        the Java name of an encryption algorithm to use, eg PBEWithMD5AndDES
 * @param version
 *        the version of encyption to use, for historic and future compatibility.
 *        Unless using an historic version, this should always be
 *        {@link #DEFAULT_VERSION}
 *
 * @throws InvalidKeyException
 * @throws NoSuchAlgorithmException
 * @throws NoSuchPaddingException
 * @throws InvalidKeySpecException
 */
public EncryptionUtil(String encryptionKey, String algorithm, String version)
        throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeySpecException {
    this.algorithm = algorithm;
    this.version = version;
    if (log.isDebugEnabled()) {
        log.debug("Cryptographic properties: algorithm=" + this.algorithm + ", version=" + this.version);
    }

    if (!DEFAULT_VERSION.equals(version)) {
        throw new RuntimeException("Unrecognised crypto version setting: " + version);
    }

    PBEKeySpec keyspec = new PBEKeySpec(encryptionKey.toCharArray(), salt, ITERATION_COUNT, 32);
    SecretKeyFactory skf = SecretKeyFactory.getInstance(algorithm);
    key = skf.generateSecret(keyspec);
    algParamSpec = new PBEParameterSpec(salt, ITERATION_COUNT);
}

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From source file:org.apache.nifi.processors.standard.util.crypto.OpenSSLPKCS5CipherProvider.java

protected Cipher getInitializedCipher(EncryptionMethod encryptionMethod, String password, byte[] salt,
        boolean encryptMode) throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException,
        NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException {
    if (encryptionMethod == null) {
        throw new IllegalArgumentException("The encryption method must be specified");
    }/*from   w w  w.  jav  a2 s.  c o m*/

    if (StringUtils.isEmpty(password)) {
        throw new IllegalArgumentException("Encryption with an empty password is not supported");
    }

    validateSalt(encryptionMethod, salt);

    String algorithm = encryptionMethod.getAlgorithm();
    String provider = encryptionMethod.getProvider();

    // Initialize secret key from password
    final PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray());
    final SecretKeyFactory factory = SecretKeyFactory.getInstance(algorithm, provider);
    SecretKey tempKey = factory.generateSecret(pbeKeySpec);

    final PBEParameterSpec parameterSpec = new PBEParameterSpec(salt, getIterationCount());
    Cipher cipher = Cipher.getInstance(algorithm, provider);
    cipher.init(encryptMode ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, tempKey, parameterSpec);
    return cipher;
}

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From source file:org.artifactory.security.CryptoHelper.java

public static String encryptSymmetric(String plainText, SecretKey pbeKey) {
    try {//from  w  w  w. java2  s  . c  om
        Cipher pbeCipher = Cipher.getInstance(SYM_ALGORITHM);
        PBEParameterSpec pbeParamSpec = new PBEParameterSpec(PBE_SALT, PBE_ITERATION_COUNT);
        pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);
        byte[] encrypted = pbeCipher.doFinal(stringToBytes(plainText));
        return getEncryptionPrefix() + toBase64(encrypted);
    } catch (Exception e) {
        throw new UnsupportedOperationException(e);
    }
}

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