Examples with PBEKeySpec javax.crypto.spec.PBEKeySpec used on opensource projects

Example 6 with PBEKeySpec

use of javax.crypto.spec.PBEKeySpec in project XobotOS by xamarin.

the class JDKPKCS12KeyStore method wrapKey.

protected byte[] wrapKey(String algorithm, Key key, PKCS12PBEParams pbeParams, char[] password) throws IOException {
    PBEKeySpec pbeSpec = new PBEKeySpec(password);
    byte[] out;
    try {
        SecretKeyFactory keyFact = SecretKeyFactory.getInstance(algorithm, bcProvider);
        PBEParameterSpec defParams = new PBEParameterSpec(pbeParams.getIV(), pbeParams.getIterations().intValue());
        Cipher cipher = Cipher.getInstance(algorithm, bcProvider);
        cipher.init(Cipher.WRAP_MODE, keyFact.generateSecret(pbeSpec), defParams);
        out = cipher.wrap(key);
    } catch (Exception e) {
        throw new IOException("exception encrypting data - " + e.toString());
    }
    return out;
}

Example 7 with PBEKeySpec

use of javax.crypto.spec.PBEKeySpec in project OpenAM by OpenRock.

the class DataEncryptor method decryptWithSymmetricKey.

/**
     * Decrypts the given data with a symmetric key generated using shared
     * secret.
     * @param data the data to be decrypted with symmetric key.
     * @param encAlgorithm the encryption algorithm was used for
     *        encrypting the data.
     * @param secret the shared secret to be used for decrypting the data.
     * @return the decrypted data. 
     */
public static String decryptWithSymmetricKey(String data, String encAlgorithm, String secret) throws Exception {
    try {
        String algorithm = encAlgorithm;
        if (!algorithm.startsWith("PBEWith")) {
            algorithm = "PBEWithMD5And" + encAlgorithm;
        }
        SecretKeyFactory skFactory = SecretKeyFactory.getInstance(algorithm);
        PBEKeySpec pbeKeySpec = new PBEKeySpec(secret.toCharArray());
        SecretKey sKey = skFactory.generateSecret(pbeKeySpec);
        Cipher cipher = Cipher.getInstance(algorithm);
        cipher.init(Cipher.DECRYPT_MODE, sKey, pbeParameterSpec);
        byte[] tmp = Base64.decode(data);
        byte[] encData = removePrefix(tmp);
        byte[] decData = cipher.doFinal(encData);
        return Base64.encode(decData);
    } catch (NoSuchAlgorithmException nse) {
        throw new Exception(nse.getMessage());
    }
}

Example 8 with PBEKeySpec

use of javax.crypto.spec.PBEKeySpec in project yyl_example by Relucent.

the class PBEWithMD5AndDES_Encrypt method encrypt.

/**
	 * 将传进来的明文以PBEWithMD5AndDES算法进行加密
	 * 
	 * @param text String
	 * @return String
	 */
public String encrypt(String text) throws Exception {
    if (text == null || text.length() == 0) {
        return "";
    }
    PBEKeySpec pbks = new PBEKeySpec(password.toCharArray());
    SecretKeyFactory skf = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
    SecretKey k = skf.generateSecret(pbks);
    byte[] salt = new byte[8];
    Random r = new Random();
    r.nextBytes(salt);
    Cipher cp = Cipher.getInstance("PBEWithMD5AndDES");
    PBEParameterSpec ps = new PBEParameterSpec(salt, 1000);
    cp.init(Cipher.ENCRYPT_MODE, k, ps);
    byte[] ptext = text.getBytes(encoding);
    byte[] ctext = cp.doFinal(ptext);
    String result = "";
    for (int i = 0; i < salt.length; i++) {
        result += salt[i] + " ";
    }
    for (int i = 0; i < ctext.length; i++) {
        result += ctext[i] + " ";
    }
    return string2hex(result);
}

Example 9 with PBEKeySpec

use of javax.crypto.spec.PBEKeySpec in project opennms by OpenNMS.

the class JCEKSSecureCredentialsVault method setCredentials.

@Override
public void setCredentials(String alias, Credentials credentials) {
    try {
        byte[] credentialBytes = toBase64EncodedByteArray(credentials);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBE");
        SecretKey generatedSecret = factory.generateSecret(new PBEKeySpec(new String(credentialBytes).toCharArray(), m_salt, m_iterationCount, m_keyLength));
        KeyStore.PasswordProtection keyStorePP = new KeyStore.PasswordProtection(m_password);
        m_keystore.setEntry(alias, new KeyStore.SecretKeyEntry(generatedSecret), keyStorePP);
        writeKeystoreToDisk();
    } catch (KeyStoreException | InvalidKeySpecException | NoSuchAlgorithmException | IOException e) {
        throw Throwables.propagate(e);
    }
}

Example 10 with PBEKeySpec

use of javax.crypto.spec.PBEKeySpec in project opennms by OpenNMS.

the class JCEKSSecureCredentialsVault method setCredentials.

@Override
public void setCredentials(String alias, Credentials credentials) {
    try {
        byte[] credentialBytes = toBase64EncodedByteArray(credentials);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBE");
        SecretKey generatedSecret = factory.generateSecret(new PBEKeySpec(new String(credentialBytes).toCharArray(), m_salt, m_iterationCount, m_keyLength));
        KeyStore.PasswordProtection keyStorePP = new KeyStore.PasswordProtection(m_password);
        m_keystore.setEntry(alias, new KeyStore.SecretKeyEntry(generatedSecret), keyStorePP);
        writeKeystoreToDisk();
    } catch (KeyStoreException | InvalidKeySpecException | NoSuchAlgorithmException | IOException e) {
        throw Throwables.propagate(e);
    }
}