final String encrypted1 = cipher1.encryptText(original);
        final String encrypted2 = cipher2.encryptText(original);

        assertThat(encrypted1, is(not(encrypted2)));
        assertThat(cipher1.decryptText(encrypted1), is(original));
        assertThat(cipher2.decryptText(encrypted2), is(original));
    }

    @Test
    public void testEmptyString() {

    /**
     * Encrypts the given data.
     *
     * @param data
     *            the data to encrypt
     * @return the encrypted data
     */
    public byte[] encrypt(final byte[] data) {
        final Cipher cipher = pollEncryptoCipher();
        byte[] encrypted;
        try {
            encrypted = cipher.doFinal(data);

     * Parses the role set from a string.
     * @param value The string to parse.
     * @param encrypted Whether the string is encrypted.
     * @param roleSet The set of roles.
     */
    protected void parseRoleSet(final String value, final boolean encrypted, final Set<String> roleSet) {
        String rolesStr = value;
        if (encrypted && cipher != null) {
            try {
                rolesStr = cipher.decryptoText(rolesStr);

            throw e;
        }
    }

    /**
     * Changes the password for a user identified by username.
     * Updates both the authentication manager and the database with the new encrypted password.
     *
     * @param username the username of the user
     * @param password the new password in plain text
     * @throws FessUserNotFoundException if the user is not found
     */

				"application/oebps-package+xml",
				"application/ogg",
				"application/kate",
				"application/onenote",
				"application/parityfec",
				"application/patch-ops-error+xml",
				"application/pgp-encrypted",
				"application/pgp-keys",
				"application/pgp-signature",
				"application/pics-rules",
				"application/pidf+xml",
				"application/pidf-diff+xml",
				"application/pkcs10",
				"application/pkcs7-mime",

    /** Queries field name. */
    public static final String QUERIES = "queries";

    /** Virtual hosts field name. */
    public static final String VIRTUAL_HOSTS = "virtualHosts";

    /** Prefix for encrypted/ciphered values. */
    public static final String CIPHER_PREFIX = "{cipher}";

    /** System user identifier. */
    public static final String SYSTEM_USER = "system";

    /** Empty user ID placeholder. */

      <match value="%PDF-1." type="string" offset="1:512"/>
      <match value="%PDF-2." type="string" offset="1:512"/>
    </magic>
    <glob pattern="*.pdf"/>
  </mime-type>
  <mime-type type="application/pgp-encrypted">
    <alias type="application/pgp"/>
    <magic>
      <match value="\x85" type="string" offset="0">
        <match value="\x03" type="string" offset="3"/>
      </match>
    </magic>

                // SECURITY WARNING: Unsecure basic authentication is enabled by default.
                // This sends credentials in Base64 encoding over potentially unencrypted connections.
                // For production, it is STRONGLY RECOMMENDED to set spnego.allow.unsecure.basic to false
                // and use HTTPS or more secure authentication methods.

        if (logger.isDebugEnabled()) {
            logger.debug("system.properties: {}", value);
        }
        if (StringUtil.isNotBlank(value)) {
            ParameterUtil.parse(ParameterUtil.encrypt(value)).entrySet().stream().filter(e -> {
                final String key = e.getKey();
                if (StringUtil.isBlank(key)) {
                    return false;
                }

    }

    default void setLdapAdminSecurityCredentials(final String value) {
        setSystemProperty(Constants.LDAP_ADMIN_SECURITY_CREDENTIALS,
                Constants.CIPHER_PREFIX + ComponentUtil.getPrimaryCipher().encrypt(value));
    }

    default String getLdapAdminSecurityCredentials() {
        final String value = getSystemProperty(Constants.LDAP_ADMIN_SECURITY_CREDENTIALS);