| 摘要 |
The present invention relates to a security access system for a videotex server centre 11 accessible by means of a terminal 8, 10, characterised in that it is composed of a support 1 within which are embodied a plurality of reference elements 5 configured in a well determined manner and intended to define an access code by the positioning of the said support 1 on the display screen 8 of the said terminal, from among a random distribution of characters generated on the terminal by the said server centre 11, the said access code thus defined then being entered into the terminal 10 by the user, and processed, in combination with the basic random distribution, by means of a computational algorithm managed by the server centre 11, in order to grant access to the said server centre 11. <IMAGE>
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