摘要:
A method and a system for personalizing electronic elements, by replacing, in a non-volatile memory of each of the electronic elements a first secret key with a second secret key, by a secure authentication module automatically generating the second key after having restored the first one from an identifier of the element being personalized, including conditioning, on the authentication module side, the provision of the second key to a current element to the reception of a message confirming the key replacement of at least one preceding element.
摘要:
The invention concerns a method and a system for customizing electronic components (2), by substituting in a nonvolatile storage each one first secret key (Ks) with a second secret key (Ks′), using a secure authentication module (1) automatically generating said second key after reconstructing the first key from an identifier of the component during customization, which consists in conditioning, on the authentication module side, the supply of the second key for a current component upon reception of a confirmation message for key substitution of at least one previous component.
摘要:
A method for detecting a disturbance of a calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integral number, the degree of which determines the number of iterations, each iteration including: in case of an odd current coefficient, updating at least one first variable intended to contain the result at the end of the calculation; and in case of an even current coefficient, of updating a second variable and a comparison of this second variable with an expected value.
摘要:
A method and a system of customization and authentication of an electronic circuit for an application implementing an asymmetrical algorithm and using a certification authority, including use of an authentication channel of another application implementing the same asymmetrical algorithm and using another certification authority.
摘要:
A method and a circuit for protecting at least one piece of information contained in an electronic circuit by disabling at least one function of the circuit in case of detection of a number of abnormal operations greater than a threshold, in which the disabling of the function is temporary, of a duration independent from whether the circuit is powered or not.
摘要:
A method for detecting a disturbance of a calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integral number, the degree of which determines the number of iterations, each iteration including: in case of an odd current coefficient, updating at least one first variable intended to contain the result at the end of the calculation; and in case of an even current coefficient, of updating a second variable and a comparison of this second variable with an expected value.
摘要:
The invention relates to a method for protecting information contained in a security module of a telecommunication device provided with a near-field communication router, wherein the provision of information from the security module to the near-field communication router is subject to checking a signature of a routing table between ports of said router.
摘要:
The invention relates to a method of protecting a security module (14) equipping a telecommunication device equipped with a near-field communication router (18), against an attempt to divert a channel for communication between a port of this security module and a port of the router, in which upon each request originating from the router and destined for the security module, the latter verifies the rights of access to the information that it contains as a function of the provenance of the request.
摘要:
A method for assessing the resistance of a security module against an attempt to divert a communication pipe between a gate of this security module and a gate of a near-field communication router present in a telecommunication device to which the security module is intended to be connected, including the steps of: connecting the security module to a near-field communication router emulator; having the emulator send at least one command to the security module, this command simulating the fact that the pipe used is not connected to a near-field communication gate; and determining whether the security module accepts the commands.
摘要:
The invention relates to a method for protecting information contained in a security module of a telecommunication device provided with a near-field communication router, wherein the provision of information from the security module to the near-field communication router is subject to checking a signature of a routing table between ports of said router.