Example usage for javax.crypto.spec PBEKeySpec PBEKeySpec

Introduction

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

Prototype

public PBEKeySpec(char[] password, byte[] salt, int iterationCount) 

Source Link

Document

Constructor that takes a password, salt, iteration count for generating PBEKey of fixed-key-size PBE ciphers.

Usage

From source file:com.rdonasco.security.utils.EncryptionUtil.java

public static String encryptWithPassword(String stringToEncrypt, String password) throws Exception {
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray(), SALT, COUNT);
    SecretKey pbeKey = getKeyFactory().generateSecret(pbeKeySpec);
    Cipher pbeCipher = Cipher.getInstance(CIPHER_KEY_SPEC);
    pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, PBE_PARAM_SPEC);
    byte[] encryptedBytes = pbeCipher.doFinal(stringToEncrypt.getBytes());
    return Base64.encodeBase64String(encryptedBytes);
}

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From source file:net.mobid.codetraq.utils.PasswordProcessor.java

/**
 * Encrypts a text using the <code>passPhrase</code> above and an algorithm supported
 * by your virtual machine implementation. You can change the default algorithm with
 * another algorithm, but please make sure your virtual machine supports it.
 * @param valueToEncrypt - text to encrypt
 * @return an encrypted, Base64 encoded text
 *//*from  w w w. ja va2 s.co m*/
public static String encryptString(String valueToEncrypt) {
    String output = null;
    try {
        KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterations);
        SecretKey secretKey = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
        Cipher cipher = Cipher.getInstance(secretKey.getAlgorithm());
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterations);
        cipher.init(Cipher.ENCRYPT_MODE, secretKey, paramSpec);
        // begin encrypting...
        byte[] byteToEncrypt = valueToEncrypt.getBytes("UTF8");
        byte[] encrypted = cipher.doFinal(byteToEncrypt);
        output = new Base64().encodeToString(encrypted);
    } catch (Exception ex) {
        Logger.getLogger(PasswordProcessor.class.getName()).log(Level.SEVERE, null, ex);
    }
    return output;
}

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From source file:org.kitodo.data.encryption.DesEncrypter.java

private void initialise(String passPhrase) {
    int iterationCount = 19;

    KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), defaultSalt, iterationCount);

    try {/*w  w w.  jav a2  s .  co m*/
        SecretKey secretKey = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
        encryptionCipher = Cipher.getInstance(secretKey.getAlgorithm());
        decryptionCipher = Cipher.getInstance(secretKey.getAlgorithm());
        AlgorithmParameterSpec algorithmParameterSpec = new PBEParameterSpec(defaultSalt, iterationCount);
        encryptionCipher.init(Cipher.ENCRYPT_MODE, secretKey, algorithmParameterSpec);
        decryptionCipher.init(Cipher.DECRYPT_MODE, secretKey, algorithmParameterSpec);
    } catch (InvalidKeySpecException e) {
        logger.info("Catched InvalidKeySpecException with message: " + e.getMessage());
    } catch (NoSuchAlgorithmException e) {
        logger.info("Catched NoSuchAlgorithmException with message: " + e.getMessage());
    } catch (NoSuchPaddingException e) {
        logger.info("Catched NoSuchPaddingException with message: " + e.getMessage());
    } catch (InvalidAlgorithmParameterException e) {
        logger.info("Catched InvalidAlgorithmParameterException with message: " + e.getMessage());
    } catch (InvalidKeyException e) {
        logger.info("Catched InvalidKeyException with message: " + e.getMessage());
    }
}

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From source file:com.aspose.showcase.qrcodegen.web.api.util.StringEncryptor.java

public static String decrypt(String encryptedData, String password) throws Exception {

    Security.addProvider(new BouncyCastleProvider());

    byte[] encrypted = Base64.decode(encryptedData);

    Cipher cipher0 = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");

    // Openssl puts SALTED__ then the 8 byte salt at the start of the file.
    // We simply copy it out.
    byte[] salt = new byte[SALT_SIZE];
    System.arraycopy(encrypted, SALT_SIZE, salt, 0, SALT_SIZE);

    SecretKeyFactory fact = SecretKeyFactory.getInstance("PBEWITHMD5AND128BITAES-CBC-OPENSSL", "BC");
    cipher0.init(Cipher.DECRYPT_MODE,
            fact.generateSecret(new PBEKeySpec(password.toCharArray(), salt, PBE_KEY_SALE_SIZE)));

    // Decrypt the rest of the byte array (after stripping off the salt)
    byte[] decValue = cipher0.doFinal(encrypted, SALT_STRIP_LENGTH, encrypted.length - SALT_STRIP_LENGTH);

    return new String(decValue);
}

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From source file:org.j2free.security.DESEncrypter.java

/**
 * //  w w w. j a  v a2  s.  c o  m
 * @param passPhrase
 */
public DESEncrypter(String passPhrase) {

    try {
        // Create the key based on the passPhrase
        KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, ITERATION_COUNT);
        SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);

        encoder = Cipher.getInstance(key.getAlgorithm());
        decoder = Cipher.getInstance(key.getAlgorithm());

        // Prepare the parameter to the ciphers
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, ITERATION_COUNT);

        // Create the ciphers
        encoder.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        decoder.init(Cipher.DECRYPT_MODE, key, paramSpec);

    } catch (Exception e) {
        throw LaunderThrowable.launderThrowable(e);
    }
}

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From source file:org.talend.daikon.security.CryptoHelper.java

/**
 * @param passPhrase the pass phrase used to encrypt and decrypt strings.
 *//*from  www . j  ava 2s . c  o  m*/
public CryptoHelper(String passPhrase) {
    try {
        // Create the key
        KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
        SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec); //$NON-NLS-1$
        ecipher = Cipher.getInstance(key.getAlgorithm());
        dcipher = Cipher.getInstance(key.getAlgorithm());

        // Prepare the parameter to the ciphers
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);

        // Create the ciphers
        ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
    } catch (Exception e) {
        // do nothing
    }
}

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From source file:org.orcid.core.crypto.DesEncrypter.java

private void initDesEncrypter(final String passPhrase) {
    try {/*w w w .  ja va2s . c om*/
        // Create the key
        KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
        SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
        ecipher = Cipher.getInstance(key.getAlgorithm());
        dcipher = Cipher.getInstance(key.getAlgorithm());

        // Prepare the parameter to the ciphers
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);

        // Create the ciphers
        ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
    } catch (GeneralSecurityException e) {
        LOGGER.trace("DesEncrypter.creation failed", e);
        throw new ApplicationException("DesEncrypter creation failed", e);
    }
}

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From source file:com.rdonasco.security.utils.EncryptionUtil.java

public static String decryptWithPassword(String encryptedString, String password) throws Exception {
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray(), SALT, COUNT);
    SecretKey pbeKey = getKeyFactory().generateSecret(pbeKeySpec);
    Cipher pbeCipher = Cipher.getInstance(CIPHER_KEY_SPEC);
    pbeCipher.init(Cipher.DECRYPT_MODE, pbeKey, PBE_PARAM_SPEC);
    byte[] decryptedBytes = pbeCipher.doFinal(Base64.decodeBase64(encryptedString));
    return new String(decryptedBytes);
}

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From source file:org.kitodo.production.security.password.SecurityPasswordEncoder.java

private void initialize(String passPhrase) {
    int iterationCount = 19;
    KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), defaultSalt, iterationCount);
    try {/*  w  w  w . ja  v a 2  s .c om*/
        SecretKey secretKey = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
        encryptionCipher = Cipher.getInstance(secretKey.getAlgorithm());
        decryptionCipher = Cipher.getInstance(secretKey.getAlgorithm());
        AlgorithmParameterSpec algorithmParameterSpec = new PBEParameterSpec(defaultSalt, iterationCount);
        encryptionCipher.init(Cipher.ENCRYPT_MODE, secretKey, algorithmParameterSpec);
        decryptionCipher.init(Cipher.DECRYPT_MODE, secretKey, algorithmParameterSpec);
    } catch (InvalidKeySpecException e) {
        logger.info("Catched InvalidKeySpecException with message: " + e.getMessage());
    } catch (NoSuchAlgorithmException e) {
        logger.info("Catched NoSuchAlgorithmException with message: " + e.getMessage());
    } catch (NoSuchPaddingException e) {
        logger.info("Catched NoSuchPaddingException with message: " + e.getMessage());
    } catch (InvalidAlgorithmParameterException e) {
        logger.info("Catched InvalidAlgorithmParameterException with message: " + e.getMessage());
    } catch (InvalidKeyException e) {
        logger.info("Catched InvalidKeyException with message: " + e.getMessage());
    }
}

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From source file:de.codesourcery.eve.apiclient.utils.PasswordCipherProvider.java

@Override
public Cipher createCipher(boolean decrypt) {

    final char[] password = getPassword();

    if (ArrayUtils.isEmpty(password)) {
        log.warn("createCipher(): No password , returning NULL cipher.");
        return new NullCipher();
    }/*from w ww .  j  av a  2s  . co m*/

    try {

        final int iterations = 20;

        final byte[] salt = new byte[] { (byte) 0xab, (byte) 0xfe, 0x03, 0x47, (byte) 0xde, (byte) 0x99,
                (byte) 0xff, 0x1c };

        final PBEParameterSpec pbeSpec = new PBEParameterSpec(salt, iterations);

        final PBEKeySpec spec = new PBEKeySpec(password, salt, iterations);
        final SecretKeyFactory fac = SecretKeyFactory.getInstance("PBEWithMD5andDES");
        final SecretKey secretKey;
        try {
            secretKey = fac.generateSecret(spec);
        } catch (InvalidKeySpecException e) {
            throw e;
        }

        final Cipher cipher = Cipher.getInstance("PBEWithMD5andDES");
        if (decrypt) {
            cipher.init(Cipher.DECRYPT_MODE, secretKey, pbeSpec);
        } else {
            cipher.init(Cipher.ENCRYPT_MODE, secretKey, pbeSpec);
        }
        return cipher;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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