FIELD: physics; computer engineering.
SUBSTANCE: invention relates to a method of entering information, specifically to a new method of entering information which prevents disclosure of the entered information to observers. In accordance with the present invention, information is entered using a secret information input unit, which has a group of active characters, a group of inactive characters and a group of control apparatus. Users enter the required information, executing an operation for moving, canceling and increasing (decreasing) value of a character. Despite that observers see the information input process, the proposed method of entering information prevents disclosure of the entered information since it prevents recognition by observers of the entered information during the entering process.
EFFECT: prevention of recognition of entered information by outside observers of the entering process.
11 cl, 19 dwg
