Idemia France

Oberthur Technologies

Marco De Oliveira

Francis Chamberot

Aghiles Adjaz

Francis Chambero

Method of controlling an electronic device and corresponding electronic device. The method may be performed by an electronic device () and includes steps such as receiving an instruction command (CMD) that includes identifiers (ID) of instructions (IS) that are prerecorded in a memory () of the electronic device; using the identifiers to form a code (RC) defining a set of instructions, where the set of instructions combines prerecorded instructions (IS) to execute a security check; and storing the code (RC) in a memory () of the electronic device in order to configure the electronic device () to execute the security check.

Method of controlling an electronic device and corresponding electronic device

A checking device and method performed by a microcircuit for dependency rules for objects updated in the microcircuit. The device and method include steps for receiving (B) a command for updating a first object () stored in the microcircuit, the command giving an updated value for the first object; and verifying (B, B') an updating rule () for the first object while taking account of the updated value for the first object. The device and method can be used in microcircuits that carry out transactions.

Method for controlling dependency rules of objects updated in a microcircuit, and corresponding device

The invention relates to a method for controlling a transaction carried out between an electronic device comprising a secure memory and an external terminal by monitoring usage patterns of the electronic device, wherein a first and a second item of usage information are read when the transaction is carried out; a first list of data pairs is recorded on the secure memory, each of said pairs comprising the first and second (IU) items of usage information; a second list of counters is recorded on the secure memory; an indicator for monitoring usage patterns of the electronic device is calculated on the basis of the first item of usage information, the second item of usage information, and/or a counter from the second list.

Method for monitoring usage patterns and electronic device capable of implementing such a method

A method for assisting in improving the security of an electronic operation carried out via a secure element. The method comprises the following steps. A first application of the secure element is selected and writes a piece of contextual data in means of recording of the secure element. Then, a second application is selected, reads the contextual data in the means for recording and verifies if the contextual data satisfies a predefined condition. If yes, it is considered that the context of the selecting of the second application is legitimate and the electronic operation can continue normally.

Method for the security of an electronic operation

A method and corresponding electronic device for securing the device. The device and method may include operations for: receiving a command requesting a modification of an operating parameter of the electronic device (C); detecting whether the operating parameter is a parameter that is predefined as a sensitive parameter; and if so, determining whether the modification requested by the command, if applied, would lead to a degradation of the security of the electronic device. The determining may be done by comparing the initial state of the parameter on receiving the command with a new state for giving to the operating parameter in response to the command. And, in the event of the security of the electronic device being degraded, triggering an operation of securing the electronic device in response to the first command.

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Colombes, France

Marco De Oliveira