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 7424114 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 09, 2008

Filed:

Nov. 20, 2001
Applicants:

Marc Joye, Saint Zacharie, FR;

Jean-sébastien Coron, Paris, FR;

Pascal Paillier, Paris, FR;

Inventors:

Marc Joye, Saint Zacharie, FR;

Jean-Sébastien Coron, Paris, FR;

Pascal Paillier, Paris, FR;

Assignee:

Gemplus, Gemenos, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

There exist numerous public key probabilistic encryption algorithms. Most of these algorithms do not have a maximum security level against someone capable of chosen ciphertext attacks. The disclosed method provides a construct to enhance the security of any public key probabilistic or deterministic encryption algorithm to achieve an optimal security level.


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