| 摘要 |
<p>A data writing and reproducing device using a password when writing and reproducing data is provided. The data writing and reproducing device includes a signal processor (130) to scramble video data using an encryption key, a data writing module (120) to write the video data scrambled by the signal processor (130) to a recording medium, a key signal input part (150) to provide a function to input a password, and a controller (140) to generate the encryption key from the password and to provide the encryption key to the signal processor (130). The recording medium storing data by use of the data writing and reproducing device is reproducible only through a CSS-compliant reproducing device. Accordingly, the data is protected from illegal copying and viewing by a third party and the possibility of hacking can be reduced.</p> |
