| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an information processor capable of reliably maintaining secrecy without applying any special countermeasure to data themselves. SOLUTION: This information processor is provided with: a display part (for example, a liquid crystal display device 1) in which the viewing angle can be widened/narrowed; an input part 2 for inputting data; an input and output controlling part 3 for operating the display of an input screen, the echo- back of the input data, and the buffering of the input data; and data processing parts 6 and 7 for outputting an input request to the input and output controlling part 3, and for processing the inputted data. The input and output controlling part 3 controls the viewing angle of the display part to be made narrow in response to the echo-back of the data for authenticating a user among input requests outputted from the data processing parts 6 and 7.</p> |
