Data Loss Prevention for Confidential Web Contents and Security Evaluation with BAN Logic
Since the enforcement of the private information protection law of Japan, protection of confidential information is one of the significant issues in enterprises and organizations. However, many incidents of confidential information leakage occur and this becomes a serious issue in the industrial society. There is no effective countermeasure to prevent it so far. In this paper, the authors propose a web content protection system to realize the protection of confidential web contents. The system provides special viewer application to view the encrypted content data and realize the prohibition of copying and taking snapshots for the displayed confidential data. Adopting the dynamical encryption methodology by the intermediate encryption proxy, it is possible to protect the web contents generated dynamically by web applications.