Brief description of the certification of information placed on a support for information and apparatus of the certification of supports, such as cards of identity

摘要

The invention relates to the certification of information media. It relates to a method of certification of information according to which information carried by cards are transformed into a code which is transmitted with arbitrary data also carried by a card, to a central file. The latter compares the code-arbitrary data pair to all of the pairs which it contains and indicates the presence or absence of such a pair. In the event of absence of such a pair, the information medium is either erroneous, or falsified, or counterfeit. Application to the certification of identity cards.