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:
May. 29, 2012
Filed:
Oct. 29, 2008
Cyrille Pepin, Andresy, FR;
Guillaume Roudiere, Boulogne, FR;
Cyrille Pepin, Andresy, FR;
Guillaume Roudiere, Boulogne, FR;
Morpho, Paris, FR;
Abstract
A method of managing access rights in a smart card, to subordinating execution of a command (Cmd, Cmd) such as reading or writing to an event (Evt', Evt′) being valid, such as authentication by verifying a code. The state of validation events is stored in a register, and the access rights are stored in a command list (List_Cmd) made up of couples (Cpl, Cpl), each associating a command with an event. On receiving a request to execute a command, a search is made in the command list (List_Cmd) for the couple (Cpl, Cpl) that includes the requested command, and execution is refused if the search is unsuccessful. If the search is successful, then it is determined from the register (referred to as the card security state register) whether the event associated with the command is or is not valid, in order to authorize or refuse execution thereof. The invention is for use in any smart card application that involves access rights.