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) 

Source Link

Document

Constructor that takes a password.

Usage

From source file:org.apache.ranger.plugin.util.PasswordUtils.java

private String decrypt() throws IOException {
    String ret = null;// ww  w  .  j  a  v a 2s.c  o m
    try {
        byte[] decodedPassword = Base64.decode(password);
        Cipher engine = Cipher.getInstance(CRYPT_ALGO);
        PBEKeySpec keySpec = new PBEKeySpec(encryptKey);
        SecretKeyFactory skf = SecretKeyFactory.getInstance(CRYPT_ALGO);
        SecretKey key = skf.generateSecret(keySpec);
        engine.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(salt, ITERATION_COUNT));
        String decrypted = new String(engine.doFinal(decodedPassword));
        int foundAt = decrypted.indexOf(LEN_SEPARATOR_STR);
        if (foundAt > -1) {
            if (decrypted.length() > foundAt) {
                ret = decrypted.substring(foundAt + 1);
            } else {
                ret = "";
            }
        } else {
            ret = null;
        }
    } catch (Throwable t) {
        LOG.error("Unable to decrypt password due to error", t);
        throw new IOException("Unable to decrypt password due to error", t);
    }
    return ret;
}

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

/**
 * Initializes the {@link SimpleEncryptor} object.
 * /*from ww  w.jav a 2s. 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:JavaTron.JTP.java

/**
 * Decrypts an encrypted string/*from   w ww.  j av a  2 s  . com*/
 * @param property
 * @return A plaintext string
 */
public static String decrypt(String property) {
    String p = new String();
    try {
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey key = keyFactory.generateSecret(new PBEKeySpec(PASSWORD));
        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
        pbeCipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(SALT, 20));
        p = new String(pbeCipher.doFinal(base64Decode(property)));
    } catch (Exception e) {
        e.printStackTrace();
    }
    return p;
}

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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:org.artifactory.security.CryptoHelper.java

public static SecretKey generatePbeKey(String password) {
    try {//  ww  w.j  av  a2s. com
        PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(SYM_ALGORITHM);
        SecretKey secretKey = keyFactory.generateSecret(pbeKeySpec);
        return secretKey;
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalArgumentException("No such algorithm: " + e.getMessage());
    } catch (InvalidKeySpecException e) {
        throw new RuntimeException("Unexpected exception: ", e);
    }
}

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

private static SecretKey generatePbeKey(String password) {
    try {/*w  ww  .  ja  v  a  2  s . c o  m*/
        PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(SYM_ALGORITHM);
        SecretKey secretKey = keyFactory.generateSecret(pbeKeySpec);
        return secretKey;
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalArgumentException("No such algorithm: " + e.getMessage());
    } catch (InvalidKeySpecException e) {
        throw new RuntimeException("Unexpected exception: ", e);
    }
}

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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.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");
    }/* w w  w .j  a v  a2s  .com*/

    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.linagora.linshare.core.utils.SymmetricEnciphermentPBEwithAES.java

private static SecretKey getSecretKey(String pw) throws NoSuchAlgorithmException, InvalidKeySpecException {

    PBEKeySpec key_spec = new PBEKeySpec(pw.toCharArray());
    SecretKeyFactory key_factory = SecretKeyFactory.getInstance(SECRETKEYFACTORY_ALGO);
    SecretKey secret_key = key_factory.generateSecret(key_spec);

    return secret_key;
}

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From source file:it.scoppelletti.programmerpower.security.spi.PBEKeyFactory.java

@Override
protected KeySpec getKeySpec(String alg, KeyRep.Type keyType, Properties props, String prefix) {
    int count, keyLen;
    boolean varKeySize;
    String countName, saltName, name, value;
    byte[] salt;/*from ww w  . j  av  a2s  . co m*/
    KeySpec keySpec;
    SecureString pwd = null;

    saltName = Strings.concat(prefix, PBEKeyFactory.PROP_SALT);
    value = props.getProperty(saltName);
    if (!Strings.isNullOrEmpty(value)) {
        try {
            salt = Hex.decodeHex(value.toCharArray());
        } catch (DecoderException ex) {
            throw SecurityUtils.toSecurityException(ex);
        }
    } else {
        salt = null;
    }

    countName = Strings.concat(prefix, PBEKeyFactory.PROP_ITERATIONCOUNT);
    value = props.getProperty(countName);
    if (!Strings.isNullOrEmpty(value)) {
        if (salt == null) {
            throw new ArgumentNullException(saltName);
        }

        count = Integer.parseInt(value);
    } else if (salt != null) {
        throw new ArgumentNullException(countName);
    } else {
        count = 0;
    }

    name = Strings.concat(prefix, PBEKeyFactory.PROP_KEYLEN);
    value = props.getProperty(name);
    varKeySize = !Strings.isNullOrEmpty(value);
    if (varKeySize) {
        if (salt == null) {
            throw new ArgumentNullException(saltName);
        }

        keyLen = Integer.parseInt(value);
    } else {
        keyLen = 0;
    }

    name = Strings.concat(prefix, PBEKeyFactory.PROP_PASSWORD);
    pwd = new SecureString(props.getProperty(name));
    if (pwd.isEmpty()) {
        throw new ArgumentNullException(name);
    }

    try {
        if (salt == null) {
            keySpec = new PBEKeySpec(pwd.getValue());
        } else if (varKeySize) {
            keySpec = new PBEKeySpec(pwd.getValue(), salt, count, keyLen);
        } else {
            keySpec = new PBEKeySpec(pwd.getValue(), salt, count);
        }
    } finally {
        if (pwd != null) {
            pwd.clear();
            pwd = null;
        }
    }

    return keySpec;
}

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