The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7218735 B1

PDF
Full Text
Expired
Date of Patent:
May. 15, 2007

Filed:

Apr. 18, 2001
Applicants:

Jean-sebastien Coron, Paris, FR;

Christophe Tymen, Versailles, FR;

Inventors:

Jean-Sebastien Coron, Paris, FR;

Christophe Tymen, Versailles, FR;

Assignee:

Gemplus, Gemenos, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cryptography method for generating probabilistic digital signatures and/or for a key-exchange a protocol and/or for an encryption algorithm is based on the use of a public key algorithm on abnormal binary elliptic curve, such as a Koblitz curve. A point P (x, y) is selected, and pairs (k, P) are stored with Pbeing the point corresponding to the scalar multiplication of the point P by k. A random variable (k) is generated and a point C is calculated that corresponds to the scalar multiplication of P by k. The generation of the random variable (k) and the calculation of the point C are performed simultaneously.


Find Patent Forward Citations

Coron, Jean-Sebastien. (2007). Cryptography method on elliptic curves (U.S. Patent No. 7218735). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7218735

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