Device for protecting the keys of a chip card

G - Physics – 06 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G06F 12/14 (2006.01) G07F 7/10 (2006.01)

Patent

CA 2121410

12 This invention concerns a device for protecting the keys of a chip card, characterized in that: - each key is encrypted by means of a diversified key; - protection information, corresponding to information depending on each encrypted key, generated and associated with each encrypted key; - a means of detection stored on the card makes it possible to check the integrity of the key, by comparing the protection information with checking information generated from the card key by the card detection means; - a blocking means makes it possible to block any further calculation on the key if the checking information is not identical to the protection information.

12 La présente invention concerne un dispositif de protection des clés d'une carte à puce, caractérisé en ce que: - chaque clé est chiffrée, a l'aide d'une clé diversifiée; - une information de protection, correspondant à une information dépendante de chaque clé chiffrée, générée et associée à chaque clé chiffrée; - un moyen de détection implanté sur la carte permet de vérifier l'intégrité de la clé, en comparant l'information de protection avec une information de vérification générée à partir de la clé de la carte, par le moyen de détection de la carte; - un moyen de blocage permet le blocage de tout calcul ultérieur sur la clé dans le cas où l'information de vérification n'est pas identique à l'information de protection.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Device for protecting the keys of a chip card does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for protecting the keys of a chip card, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for protecting the keys of a chip card will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1732954

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.