Method for protecting an electronic system with modular...

Cryptography – Communication system using cryptography – Symmetric key cryptography

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C380S037000, C380S038000

Reexamination Certificate

active

06973190

ABSTRACT:
The invention concerns a method for protecting an electronic system implementing a cryptographic calculation process involving a modular exponentiation of a quantity (x), said modular exponentiation using a secret exponent (d), characterized in that said secret exponent is broken down into a plurality of k unpredictable values (d1, d2, . . . , dk), the sum of which is equal to said secret exponent.

REFERENCES:
patent: 6038316 (2000-03-01), Dwork et al.
patent: 6108425 (2000-08-01), Smith et al.
patent: 6285761 (2001-09-01), Patel et al.
patent: 6304658 (2001-10-01), Kocher et al.
patent: 6307938 (2001-10-01), Matyas et al.
patent: 6378072 (2002-04-01), Collins et al.
patent: 6381699 (2002-04-01), Kocher et al.
patent: 6490357 (2002-12-01), Rose
patent: 6748410 (2004-06-01), Gressel et al.
patent: WO 98 52319 (1998-11-01), None
Dimitrov V et al: “Two Algorithms for Modular Exponentiation Using Nonstandard Arithmetics” IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, JP, Inst. of Electr Info & Comm. Eng. Tokyo, vol. E78-A, No. 1 Jan. 1, 1995, pp. 82-87, XP000495124, ISSN: 0916-8508 * Paragraph 2.2.
Brickell E F et al: Fast Exponentiation with Precomputation (Extended Abstract) Advances in Cryptology-Eurocrypt, Intl Conf on the Theory and Appl. of Cryptographic Techniques, De Springer Verlag, May 24, 1992, pp. 200-207, XP000577415—*Paragraph 2*.
Kocher P C: Timing Attacks on Implementations of Diffie-Hellman, RSA DSS, and Other Systems, Proceedings of the Annual Int'l Cryptology Conf (Crypto), DE, Berlin Springer, vol. Conf 16, 1996, pp. 104-113, XP000626590, ISBN: 3-540-616512-1 *Paragraph 10*.

LandOfFree

Say what you really think

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

Rating

Method for protecting an electronic system with modular... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for protecting an electronic system with modular..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for protecting an electronic system with modular... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3472666

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