Implementation and initial evaluation of game in which password enhancement factor is embedded

Embedding a security factor into entertainment instance is an effective approach to improving users’ security awareness and/or skills. As an attempt of this approach, we have proposed a password enhancement scheme which enables users to memorize stronger passwords while playing games [5]. In this succeeding paper, we implemented a game instance and evaluated the practical effectiveness of our scheme. We asked five subjects to play our game in their free time for three days. All subjects memorized at least thirteen random characters in this game. After the experiment, we asked subjects to answer a questionnaire. The users’ answers suggested that they had positive impression of our game. These results showed the effectiveness of our scheme, i.e. users are able to memorize stronger passwords naturally while playing our game.