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. 21, 2018
Filed:
Mar. 09, 2015
Commissariat a L'energie Atomique ET Aux Ene Alt, Paris, FR;
Florian Pebay-Peyroula, Saint-Nizier-du-Moucherotte, FR;
Abstract
A method for encrypting a message by a host device includes requesting, by the host device, a message key from a secure device and generating, by the secure device, the message key using a secret key stored in the secure device and which is not communicated to the host device. The method further includes the prior steps of requesting, by the host device, a token from the secure device and generating the token by the secure device, and transmitting the token to the host device. The requesting, by the host device, of the message key includes transmitting the token. The generating, by the secure device, of the message key is preceded by checking the legitimacy of the token.