vHack password encryption

test.java

        String json = "{\"\":\"\",\"pass\":\"cu\",\"time\":\"1515180217\",\"userName\":\"2643311\",\"user\":\"a\"}";

        // 1: MD5 encrypt the data json length and a md5 encryption of the current time in millis
        String lenghtandtime = md5Encrypt(json.length() + md5Encrypt(System.currentTimeMillis() + ""));
        
        // 2: Create a login details string, with the username added to a double md5 encryption of the password
        String logindetails = "USERNAME" + "" + md5Encrypt(md5Encrypt("PASSWORD"));
        
        // 3: Re-set the json as a md5 encryption of the current time in millis and itself
        json = md5Encrypt(System.currentTimeMillis() + "" + json);
        
        // 4: Set the string created on step 1 as a md5 encryption of "aeffI" with a double md5 encryption of base64 encryption of itself
        lenghtandtime = md5Encrypt("aeffI" + md5Encrypt(md5Encrypt(base64Encrypt(lenghtandtime))));
        
        // 5: Set the login details as a md5 encryption of the string made in step 4 and a base64 encryption of the login details string
        logindetails = md5Encrypt(lenghtandtime + base64Encrypt(logindetails));
        
        // 6: Re-set the json as a base64 encryption of itself
        json = base64Encrypt(json);
        
        // 7: Re-set the json as a double md5 encryption of the string from the step 4, a md5 encryption of a md5 encryption of the login details string and the json, the login detials string, and a md5 encryption of the json
        json = md5Encrypt(md5Encrypt(lenghtandtime + md5Encrypt(md5Encrypt(logindetails) + json) + logindetails + md5Encrypt(json)));