Improved method and apparatus for protecting public key...

H - Electricity – 04 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04L 9/30 (2006.01)

Patent

CA 2288837

Improved methods and apparatus for protecting pub-lic key schemes based on modular exponentiation (including RSA and Diffie-Hellman) from indirect cryptanalytic tech-niques such as timing and fault attacks. Known methods for making the implementation of number-theoretic schemes resistant to such attacks typically double their running time, whereas the novel methods and apparatus described in this patent add only negligible overhead. This improvement is particularly significant in smart card and software-based implementations, in which the modular exponentiation operation is quite slow, and doubling its time may be an unacceptable solution.

Procédé et dispositif améliorés permettant de protéger les logiques de clés publiques, sur la base de l'exponentiation modulaire (RSA et Diffie-Hellman notamment), contre les techniques crypto-analytiques indirectes, telles que les attaques basées sur la séquence des opérations et les fautes. Typiquement, les procédés connus permettant d'implémenter des logiques théoriques de nombres qui résistent à ces attaques doublent le temps d'exécution, tandis que les nouveaux procédés et dispositifs décrits dans ce brevet n'ajoutent qu'une surcharge système négligeable. Cette amélioration est particulièrement significative pour les cartes à puce et les implémentations reposant sur un logiciel, dans lesquelles l'opération d'exponentation modulaire est assez lente et où le doublement de leur durée risque d'être une solution inacceptable.

LandOfFree

Say what you really think

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

Rating

Improved method and apparatus for protecting public key... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improved method and apparatus for protecting public key..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved method and apparatus for protecting public key... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1777704

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