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:
Nov. 08, 2016
Filed:
May. 28, 2014
Nagravision SA, Cheseaux-sur-Lausanne, CH;
Jean-Philippe Aumasson, Vuibroye, CH;
NAGRAVISION S.A., Cheseaux-sur-Lausanne, CH;
Abstract
A method for authenticating a user having a first enrollment step including: receiving by a first server an identifier and a password, and sending this information to a second server; on the second server: loading a security parameter, calculating a first cryptogram on the identifier, the password, and the security parameter, encrypting at least the identifier and the password, storing the encrypted data, sending the first cryptogram to the first server and storing said cryptogram on the first server; and a second verification step including: receiving by the first server the current identifier and the current password, and sending the information to the second server; on the second server calculating a second cryptogram on the current identifier, the current password, and the security parameter and sending the second cryptogram to the first server and verification that the first cryptogram is included in the database, if not, generating an error message.