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.:
Date of Patent:
Aug. 08, 2000
Filed:
Oct. 29, 1997
Applicant:
Inventor:
Fabien Thiriet, Orleans, FR;
Assignee:
Schlumberger Systemes, Montrouge, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380-2 ; 713172 ;
Abstract
The security method is associated with an authentication method comprising steps of obtaining a calculated result from a random number subjected to a secret key algorithm, the security method includes steps of calculating a test result from a reference random number subjected to the secret key algorithm, of comparing the test result with a reference result, and of ensuring that the calculated result is transmitted only when the test result is identical to the reference result.