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:be.tutul.naheulcraft.launcher.auth.Auth.java

private Cipher getCipher(int paramInt, String key) throws Exception {
    Random random = new Random(43287234L);
    byte[] salt = new byte[8];
    random.nextBytes(salt);/*from   w  w  w  . j  a  va 2s.c  o m*/
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 5);

    SecretKey pbeKey = SecretKeyFactory.getInstance("PBEWithMD5AndDES")
            .generateSecret(new PBEKeySpec(key.toCharArray()));
    Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
    cipher.init(paramInt, pbeKey, pbeParamSpec);

    return cipher;
}

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

private String encrypt() throws IOException {
    String ret = null;/*ww w  .j  a  va2s  .  c  o  m*/
    String strToEncrypt = null;
    if (password == null) {
        strToEncrypt = "";
    } else {
        strToEncrypt = password.length() + LEN_SEPARATOR_STR + password;
    }
    try {
        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.ENCRYPT_MODE, key, new PBEParameterSpec(salt, ITERATION_COUNT));
        byte[] encryptedStr = engine.doFinal(strToEncrypt.getBytes());
        ret = new String(Base64.encode(encryptedStr));
    } catch (Throwable t) {
        LOG.error("Unable to encrypt password due to error", t);
        throw new IOException("Unable to encrypt password due to error", t);
    }
    return ret;
}

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From source file:cherry.goods.crypto.RSASignatureTest.java

private RSASignature create2(char[] password) throws Exception {

    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);/*from w ww.  ja  v a 2 s  . c om*/
    KeyPair key = keygen.generateKeyPair();

    String pbeAlgName = "PBEWithMD5AndDES";
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(RandomUtils.nextBytes(8), 20);
    SecretKey pbeKey = SecretKeyFactory.getInstance(pbeAlgName).generateSecret(pbeKeySpec);
    AlgorithmParameters pbeParam = AlgorithmParameters.getInstance(pbeAlgName);
    pbeParam.init(pbeParamSpec);
    Cipher cipher = Cipher.getInstance(pbeAlgName);
    cipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParam);
    EncryptedPrivateKeyInfo encryptedKeyInfo = new EncryptedPrivateKeyInfo(pbeParam,
            cipher.doFinal(key.getPrivate().getEncoded()));

    RSASignature impl = new RSASignature();
    impl.setAlgorithm("SHA256withRSA");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(encryptedKeyInfo.getEncoded(), password);
    return impl;
}

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From source file:cherry.goods.crypto.RSACryptoTest.java

private RSACrypto create2(char[] password) throws Exception {

    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//www  .ja  v a2  s .c o  m
    KeyPair key = keygen.generateKeyPair();

    String pbeAlgName = "PBEWithMD5AndDES";
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(RandomUtils.nextBytes(8), 20);
    SecretKey pbeKey = SecretKeyFactory.getInstance(pbeAlgName).generateSecret(pbeKeySpec);
    AlgorithmParameters pbeParam = AlgorithmParameters.getInstance(pbeAlgName);
    pbeParam.init(pbeParamSpec);
    Cipher cipher = Cipher.getInstance(pbeAlgName);
    cipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParam);
    EncryptedPrivateKeyInfo encryptedKeyInfo = new EncryptedPrivateKeyInfo(pbeParam,
            cipher.doFinal(key.getPrivate().getEncoded()));

    RSACrypto impl = new RSACrypto();
    impl.setAlgorithm("RSA/ECB/PKCS1Padding");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(encryptedKeyInfo.getEncoded(), password);
    return impl;
}

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From source file:com.redsqirl.workflow.utils.FileStream.java

private static byte[] encrypt(byte[] plaintext) throws Exception {
    SecretKey key = generateKey();
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 42);
    Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
    cipher.init(Cipher.ENCRYPT_MODE, key, pbeParamSpec);
    return cipher.doFinal(plaintext);
}

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From source file:org.eclipse.che.ide.ext.datasource.server.EncryptTextService.java

public String decryptText(String textToDecrypt) throws Exception {
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
    SecretKey key = keyFactory.generateSecret(new PBEKeySpec(getMasterPassword()));
    Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
    pbeCipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(SALT, 20));
    return new String(pbeCipher.doFinal(Base64.decodeBase64(textToDecrypt)), "UTF-8");
}

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

/**
 * Decrypts 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 valueToDecrypt - text to decrypt
 * @return a plain text//w w  w .j a va 2s .c o m
 */
public static String decryptString(String valueToDecrypt) {
    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.DECRYPT_MODE, secretKey, paramSpec);
        // begin decrypting...
        byte[] encrypted = new Base64().decode(valueToDecrypt);
        byte[] utf8 = cipher.doFinal(encrypted);
        output = new String(utf8, "UTF8");
    } catch (Exception ex) {
        Logger.getLogger(PasswordProcessor.class.getName()).log(Level.SEVERE, null, ex);
    }
    return output;
}

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From source file:org.webical.dao.encryption.impl.DesEncryptor.java

/**
 * Creates the DesEncryptor// www .j a  v  a  2s .  c  om
 * @param passPhrase the passphrase to use in encryption and decryption
 * @throws InvalidKeyException
 * @throws InvalidAlgorithmParameterException
 * @throws NoSuchAlgorithmException
 * @throws NoSuchPaddingException
 * @throws InvalidKeySpecException
 */
public DesEncryptor(String passPhrase) throws InvalidKeyException, InvalidAlgorithmParameterException,
        NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeySpecException {
    // Create the key
    KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
    SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
    encryptCipher = Cipher.getInstance(key.getAlgorithm());
    decryptCipher = Cipher.getInstance(key.getAlgorithm());

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

    // Create the ciphers
    encryptCipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
    decryptCipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
}

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From source file:br.com.vizzatech.cryptocipher.CryptoXCipher.java

/**
 * Gera chave e os parametros para um determinado algoritmo.
 * /*  w  ww . ja  v  a2s  .com*/
 * @param algoritmo
 * @param sal
 * @return {@link SecretKey}
 * @throws NoSuchAlgorithmException
 *             Algorismo no existente
 * @throws InvalidKeySpecException
 * @throws InvalidParameterSpecException
 */
private SecretKey getKey(String algoritmo, String sal)
        throws InvalidKeySpecException, NoSuchAlgorithmException, InvalidParameterSpecException {
    KeySpec keySpec;
    if (algoritmo.indexOf("PBE") != -1) {
        byte[] salt = { (byte) 0xA9, (byte) 0x9B, (byte) 0xC8, (byte) 0x32, (byte) 0x56, (byte) 0x34,
                (byte) 0xE3, (byte) 0x03 };
        int iteracoes = 16;
        keySpec = new PBEKeySpec(sal.toCharArray(), salt, iteracoes);
        paramSpec = new PBEParameterSpec(salt, iteracoes);
        return SecretKeyFactory.getInstance(algoritmo).generateSecret(keySpec);
    }
    keySpec = new SecretKeySpec(sal.getBytes(charset), algoritmo);
    return (SecretKey) keySpec;
}

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From source file:com.redsqirl.workflow.utils.FileStream.java

private static byte[] decrypt(byte[] ciphertext) throws Exception {
    SecretKey key = generateKey();
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 42);
    Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
    cipher.init(Cipher.DECRYPT_MODE, key, pbeParamSpec);
    return cipher.doFinal(ciphertext);
}

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