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:
Jun. 11, 2024
Filed:
Nov. 29, 2019
Nagravision Sarl, Cheseaux-sur-Lausanne, CH;
Jean-Philippe Aumasson, Cheseaux-sur-Lausanne, CH;
NAGRAVISION SARL, Cheseaux-sur-Lausanne, CH;
Abstract
A method for securing a beacon signal in a network comprising a transmitter for broadcasting the beacon signal and one or more receivers for receiving the beacon signal, wherein the beacon signal comprises a data packet () including a payload () that comprises a first field containing broadcast information from the transmitter and a second field () for storing authentication information, the method comprising: computing, using a secret key, a message authentication code over the payload; extracting bytes from the message authentication code to obtain the authentication information; and encrypting the first field using a symmetric cipher which takes as parameter the secret key and a nonce, wherein the nonce comprises the authentication information, the encrypting resulting in an encrypted first field, the resulting secure beacon signal () comprising the encrypted first field () and the second field () with the authentication information.