Example usage for javax.crypto SecretKeyFactory generateSecret

Introduction

In this page you can find the example usage for javax.crypto SecretKeyFactory generateSecret.

Prototype

public final SecretKey generateSecret(KeySpec keySpec) throws InvalidKeySpecException 

Source Link

Document

Generates a SecretKey object from the provided key specification (key material).

Usage

From source file:com.ethercamp.harmony.keystore.KeystoreFormat.java

private byte[] hash(String encryptedData, byte[] salt, int iterations) throws Exception {
    char[] chars = encryptedData.toCharArray();
    PBEKeySpec spec = new PBEKeySpec(chars, salt, iterations, 256);
    SecretKeyFactory skf = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
    return skf.generateSecret(spec).getEncoded();
}

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From source file:netinf.common.security.impl.CryptoAlgorithmImpl.java

@Override
public SecretKey getSecretKeyFromString(String contentAlgorithmName, String password)
        throws NetInfCheckedSecurityException {

    try {//w w w.  j a  va 2s  .c om
        DESedeKeySpec desKeySpec = new DESedeKeySpec(password.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(contentAlgorithmName);
        return keyFactory.generateSecret(desKeySpec);
    } catch (Exception e) {
        throw new NetInfCheckedSecurityException("Unable to create SecretKey. " + e.getMessage());
    }
}

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From source file:org.everit.osgi.password.encryptor.pbkdf2.internal.PBKDF2PasswordEncryptorComponent.java

private String encryptSecure(final byte[] salt, final String plainPassword, final String algorithm)
        throws NoSuchAlgorithmException, InvalidKeySpecException {
    int deriverdKeyLenght = PBKDF2PasswordEncryptorConstants.SUPPORTED_ALGORITHMS_AND_KEY_LENGTHS
            .get(algorithm);/*from  ww  w. j a  va 2s.  co m*/
    KeySpec spec = new PBEKeySpec(plainPassword.toCharArray(), salt, iterationCount, deriverdKeyLenght);
    SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
    byte[] passwordDigest = secretKeyFactory.generateSecret(spec).getEncoded();
    byte[] passwordDigestBase64 = Base64.encodeBase64(passwordDigest);
    String passwordDigestBase64StringUTF8 = StringUtils.newStringUtf8(passwordDigestBase64);
    byte[] saltBase64 = Base64.encodeBase64(salt);
    String saltBase64StringUTF8 = StringUtils.newStringUtf8(saltBase64);
    return SEPARATOR_START + algorithm + SEPARATOR_END + SEPARATOR_START + saltBase64StringUTF8 + SEPARATOR_END
            + passwordDigestBase64StringUTF8;
}

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From source file:adminpassword.AESDemo.java

public String encrypt(String plainText) throws Exception {

    //get salt/* w  w w .j av a  2 s.c o  m*/
    salt = generateSalt();
    byte[] saltBytes = salt.getBytes("UTF-8");

    // Derive the key
    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    PBEKeySpec spec = new PBEKeySpec(password.toCharArray(), saltBytes, pswdIterations, keySize);

    SecretKey secretKey = factory.generateSecret(spec);
    SecretKeySpec secret = new SecretKeySpec(secretKey.getEncoded(), "AES");

    //encrypt the message
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, secret);
    AlgorithmParameters params = cipher.getParameters();
    ivBytes = params.getParameterSpec(IvParameterSpec.class).getIV();
    byte[] encryptedTextBytes = cipher.doFinal(plainText.getBytes("UTF-8"));
    return new Base64().encodeAsString(encryptedTextBytes);
}

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From source file:adminpassword.AESDemo.java

@SuppressWarnings("static-access")
public String decrypt(String encryptedText) throws Exception {

    byte[] saltBytes = salt.getBytes("UTF-8");
    byte[] encryptedTextBytes = new Base64().decodeBase64(encryptedText);

    // Derive the key
    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    PBEKeySpec spec = new PBEKeySpec(password.toCharArray(), saltBytes, pswdIterations, keySize);

    SecretKey secretKey = factory.generateSecret(spec);
    SecretKeySpec secret = new SecretKeySpec(secretKey.getEncoded(), "AES");

    // Decrypt the message
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(ivBytes));

    byte[] decryptedTextBytes = null;
    try {/*from w w  w.  j av  a 2s  .c o m*/
        decryptedTextBytes = cipher.doFinal(encryptedTextBytes);
    } catch (IllegalBlockSizeException e) {
        e.printStackTrace();
    } catch (BadPaddingException e) {
        e.printStackTrace();
    }

    return new String(decryptedTextBytes);
}

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From source file:de.phoenix.security.Encrypter.java

/**
 * Salt a given password with a random salt
 * /*from w  ww .  j av a 2s  .c  om*/
 * @param password
 *            The password to salt
 * @param salt
 *            The random generated salt
 * @param iterations
 *            The number of iterations the password is salted by the
 *            algorithmn
 * @param bytes
 *            How many bytes the passwords contains
 * @return A salted password
 * @throws NoSuchAlgorithmException
 * @throws InvalidKeySpecException
 */
private SaltedPassword saltPassword(char[] password, byte[] salt, int iterations, int bytes)
        throws NoSuchAlgorithmException, InvalidKeySpecException {
    PBEKeySpec spec = new PBEKeySpec(password, salt, iterations, bytes * 8);
    SecretKeyFactory skf = SecretKeyFactory.getInstance(KEY_ALGORITHM);
    String saltString = Hex.encodeHexString(salt);
    String saltedHash = Hex.encodeHexString(skf.generateSecret(spec).getEncoded());
    return new SaltedPassword(saltedHash, saltString, iterations);
}

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From source file:org.jajim.utilidades.cifrado.Cifrador.java

/**
 * Constructor de la clase. Inicializa el cifrador.
 * <p>/*from w  w  w.  j  a  v a2s  .  com*/
 * @throws ImposibleCifrarDescifrarException Si no se puede instanciar un ci frador adecuado.
 */
public Cifrador() throws ImposibleCifrarDescifrarException {

    try {
        // Inicializacin de la clave
        SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
        String clave = "cjliamve";
        DESKeySpec kspec = new DESKeySpec(clave.getBytes());
        sk = skf.generateSecret(kspec);
        // Inicializacin del cifrador
        cifrado = Cipher.getInstance("DES");
    } catch (NoSuchAlgorithmException | InvalidKeyException | InvalidKeySpecException
            | NoSuchPaddingException e) {
        // En caso de que se produzca un error se escribe en el fichero
        // de log y se lanza una excepcin
        ManejadorDeLogs mdl = ManejadorDeLogs.getManejadorDeLogs();
        mdl.escribir("No se puede crear un cifrador de DES");
        throw new ImposibleCifrarDescifrarException();
    }
}

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From source file:org.openmrs.module.reportingsummary.api.io.download.DownloadProcessor.java

/**
 * Method to initialize the cipher object with the correct encryption algorithm.
 *
 * @throws Exception//w w  w .j a v a2s  . c o m
 */
private Cipher initializeCipher() throws Exception {
    SecretKeyFactory factory = SecretKeyFactory.getInstance(InputOutputConstants.SECRET_KEY_FACTORY);
    KeySpec spec = new PBEKeySpec(password.toCharArray(), password.getBytes(), 1024, 128);
    SecretKey secretKey = factory.generateSecret(spec);

    SecretKey secret = new SecretKeySpec(secretKey.getEncoded(), InputOutputConstants.KEY_SPEC);

    if (log.isDebugEnabled())
        log.debug("Encrypting with: " + secret.getAlgorithm());

    Cipher cipher = Cipher.getInstance(InputOutputConstants.CIPHER_CONFIGURATION);
    cipher.init(Cipher.ENCRYPT_MODE, secret);
    return cipher;
}

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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   ww w . j  a v  a  2  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:com.gvmax.common.util.Enc.java

public Enc(String password, int keyLength) {
    if (password == null || password.trim().equals("")) {
        enabled = false;/*from ww w .j  a  v  a 2s.  c om*/
    } else {
        enabled = true;
        try {
            SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
            KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 1024, keyLength);
            key = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES");
            c = Cipher.getInstance("AES/CBC/PKCS5Padding");
        } catch (Exception e) {
            logger.error(e);
        }
    }
}

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