inver = InvertibleCryptographer.createBlowfishCipher(fessConfig.getAppCipherKey());
        } else if ("des".equalsIgnoreCase(cipherAlgorism)) {
            inver = InvertibleCryptographer.createDesCipher(fessConfig.getAppCipherKey());
        } else if ("rsa".equalsIgnoreCase(cipherAlgorism)) {
            inver = InvertibleCryptographer.createRsaCipher(fessConfig.getAppCipherKey());
        } else {

            }

            @Override
            public String getAppCipherAlgorism() {
                return "AES";
            }

            @Override
            public String getAppCipherKey() {
                return "1234567890123456"; // 16 bytes for AES
            }
        });

        // Create test cipher - use proper constructor with simple implementation

    public void test_appCipherAlgorism() {
        assertEquals("aes", fessConfig.getAppCipherAlgorism());
    }

    public void test_appCipherKey() {
        assertEquals("___change__me___", fessConfig.getAppCipherKey());
    }

    public void test_appEncryptPropertyPattern() {
        assertEquals(".*password|.*key|.*token|.*secret", fessConfig.getAppEncryptPropertyPattern());
    }

     * comment: Secret key for encryption (change this value for production).
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getAppCipherKey();

    /**
     * Get the value for the key 'app.digest.algorism'. <br>
     * The value is, e.g. sha256 <br>
     * comment: Algorithm for digest calculation.