Abstract: With the continuous development of information society, electronic documents become a trend. Electronic documents bring a lot of security risks at the time of providing convenience to us. Security threats faced by classified electronic documents have unauthorized access, difficult to control the scope of people who know the secret, difficult to tracking the one who leaking secrets, etc., while the current solution on classified electronic documents only meet the security requirements of identity authentication, access control, etc., failed to achieve the real-time authentication of the user and effective control of classified document. Aiming at the security risk of classified electronic document and users’ need, after the research on the face authentication, unidirectional transmission and eye tracking technology, a classified document reader based on face authentication is designed. Through face authentication technology using OpenCV used to real-time authenticate the identity and permission of the user, can effectively prevent unauthorized access, peeping behavior, to achieve a reliable access control. The special interface provides a safe treatment on USB removable storage data and the classified document can be only unidirectional transmitted to readers via the special interface, thus solving potential safety hazard caused by the loss of reader or copy effectively. Classified document reader provides a safe and portable reading platform for users at the same time improved data security and reliability. This system use technical means to make up for the loopholes in regulation to achieve the balance between security and practicability of classified electronic document management.

Key words: classified document, face authentication, real-time authentication, special interface, unidirectional transmission