Examples with SecretKeyFactory javax.crypto.SecretKeyFactory used on opensource projects

Example 56 with SecretKeyFactory

use of javax.crypto.SecretKeyFactory in project UltimateAndroid by cymcsg.

the class DefaultAppLock method decryptPassword.

private String decryptPassword(String encryptedPwd) {
    try {
        DESKeySpec keySpec = new DESKeySpec(PASSWORD_ENC_SECRET.getBytes("UTF-8"));
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey key = keyFactory.generateSecret(keySpec);
        byte[] encryptedWithoutB64 = Base64.decode(encryptedPwd, Base64.DEFAULT);
        Cipher cipher = Cipher.getInstance("DES");
        cipher.init(Cipher.DECRYPT_MODE, key);
        byte[] plainTextPwdBytes = cipher.doFinal(encryptedWithoutB64);
        return new String(plainTextPwdBytes);
    } catch (Exception e) {
    }
    return encryptedPwd;
}

Example 57 with SecretKeyFactory

use of javax.crypto.SecretKeyFactory in project newsrob by marianokamp.

the class EntryManager method getSecretKey.

private static SecretKey getSecretKey() throws InvalidKeyException, UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeySpecException {
    DESKeySpec keySpec = new DESKeySpec("EntryManager.class".getBytes("UTF8"));
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey secretKey = keyFactory.generateSecret(keySpec);
    return secretKey;
}

Example 58 with SecretKeyFactory

use of javax.crypto.SecretKeyFactory in project cloudstack by apache.

the class Vnc33Authentication method encodePassword.

/**
     * Encode password using DES encryption with given challenge.
     *
     * @param challenge
     *          a random set of bytes.
     * @param password
     *          a password
     * @return DES hash of password and challenge
     */
public ByteBuffer encodePassword(ByteBuffer challenge, String password) {
    if (challenge.length != 16)
        throw new RuntimeException("Challenge must be exactly 16 bytes long.");
    // VNC password consist of up to eight ASCII characters.
    // Padding
    byte[] key = { 0, 0, 0, 0, 0, 0, 0, 0 };
    byte[] passwordAsciiBytes = password.getBytes(RfbConstants.US_ASCII_CHARSET);
    System.arraycopy(passwordAsciiBytes, 0, key, 0, Math.min(password.length(), 8));
    // Flip bytes (reverse bits) in key
    for (int i = 0; i < key.length; i++) {
        key[i] = flipByte(key[i]);
    }
    try {
        KeySpec desKeySpec = new DESKeySpec(key);
        SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey secretKey = secretKeyFactory.generateSecret(desKeySpec);
        Cipher cipher = Cipher.getInstance("DES/ECB/NoPadding");
        cipher.init(Cipher.ENCRYPT_MODE, secretKey);
        ByteBuffer buf = new ByteBuffer(cipher.doFinal(challenge.data, challenge.offset, challenge.length));
        return buf;
    } catch (Exception e) {
        throw new RuntimeException("Cannot encode password.", e);
    }
}

Example 59 with SecretKeyFactory

use of javax.crypto.SecretKeyFactory in project jackrabbit-oak by apache.

the class PasswordUtil method generatePBKDF2.

@Nonnull
private static String generatePBKDF2(@Nonnull String pwd, @Nonnull String salt, @Nonnull String algorithm, int iterations, int keyLength) throws NoSuchAlgorithmException {
    // for example PBKDF2WithHmacSHA1
    SecretKeyFactory factory = SecretKeyFactory.getInstance(algorithm);
    byte[] saltBytes = convertHexToBytes(salt);
    KeySpec keyspec = new PBEKeySpec(pwd.toCharArray(), saltBytes, iterations, keyLength);
    try {
        Key key = factory.generateSecret(keyspec);
        byte[] bytes = key.getEncoded();
        return convertBytesToHex(bytes);
    } catch (InvalidKeySpecException e) {
        throw new NoSuchAlgorithmException(algorithm, e);
    }
}

Example 60 with SecretKeyFactory

use of javax.crypto.SecretKeyFactory in project wildfly by wildfly.

the class VaultSession method computeMaskedPassword.

/**
     * Method to compute masked password based on class attributes.
     *
     * @return masked password prefixed with {link @PicketBoxSecurityVault.PASS_MASK_PREFIX}.
     * @throws Exception
     */
private String computeMaskedPassword() throws Exception {
    // Create the PBE secret key
    SecretKeyFactory factory = SecretKeyFactory.getInstance(VAULT_ENC_ALGORITHM);
    char[] password = "somearbitrarycrazystringthatdoesnotmatter".toCharArray();
    PBEParameterSpec cipherSpec = new PBEParameterSpec(salt.getBytes(), iterationCount);
    PBEKeySpec keySpec = new PBEKeySpec(password);
    SecretKey cipherKey = factory.generateSecret(keySpec);
    String maskedPass = PBEUtils.encode64(keystorePassword.getBytes(), VAULT_ENC_ALGORITHM, cipherKey, cipherSpec);
    return PicketBoxSecurityVault.PASS_MASK_PREFIX + maskedPass;
}