| 摘要 |
According to the invention, the data from each diskette 8 which are situated in a predetermined physical position transmitting commands to the central unit 4 as well as defining files in the diskette are authenticated by hardware means 12 via a non-reversible coding with a public read key. A first auxiliary file (SECUR.TXT) stored on the diskette defines a list of files to be protected, this list comprising this file itself, and the system, interpretation, configuration and start-up command files. A second auxiliary file (SECUR.CFN) stored on the diskette designates, as physical data to be protected on the diskette, at least the locations of the files defined by the file (SECUR.TXT). Verification means 16 react to the start-up command by checking the authenticity of the files defined by the second auxiliary file, in cooperation with the said hardware means. <IMAGE> |
