Abstract: Perfected cryptographic protocol making it possible to counter attacks based on the analysis of the current consumption during the execution of a DES or similar. According to the invention, a message (M) is processed by two entities (A and B) and the entity (B) subject to attack executes a chain of operations known as DES in which it is chosen to carry out a given operation (O1, O2, O3 . . . On) or the same operation complemented (?1, ?2, ?3 . . . ?n), the choice being random.

Abstract: A data processing method pertains to a step (E308) including in verifying a criterion indicative of the normal running of the method and a step (E320) including in processing performed in case of negative verification. The processing step (E230) is separated from the verifying step (E308) by an intermediate step (E312, E314) of non-null duration. The intermediate step (E312, E314) and/or the processing step (E320) includes at least one action (E314) performed in case of positive verification. The invention also concerns a corresponding device.

Abstract: Multi-layer cards with aesthetic and/or functional features, e.g. banking, access, or identification cards, having a bearing layer that includes an effects layer disposed directly between two core layers are disclosed herein. Among other potential benefits, the layered structure of the bearing layer reduces overall manufacturing costs, as compared to methods known in the art, by facilitating a balanced card construction while minimizing the number of layers formed from relatively expensive materials, avoiding direct imaging of the effects layer and minimizing waste associated therewith, as well as providing for reliable incorporation of the effects layer into the multi-layered structure with minimal expenditure of resources and reduced possibility of waste.

Abstract: A portable electronic entity includes an interface (11) to a host station and communication elements for executing a VoIP communication application between the portable electronic entity (100) thus connected to the host station (SH) and a communication server (SER) connected to the host station (SH) via a communication network (NET). The entity (100) further includes elements for securing the VoIP application for making secure the execution of the VoIP application between the portable cryptographic entity (100) and the communication server (SER), in accordance with a selected cryptographic mode.

Abstract: The “first” portable electronic entity (100) includes elements (105) for connection to a host station and a memory (120) storing instructions of an application (121) adapted to be at least partially loaded into the host station, to be executed by the host station and to collaborate with a server connected to the host station to effect the personalization of a “second” portable electronic entity (100). In embodiments, the second electronic entity is the first electronic entity. In embodiments, the application is at least partially executed by the first portable electronic entity.

Abstract: An electronic entity includes contact communication elements (4) and remote communication elements (6). Members (2, K) are also provided to authorize an exchange of certain data at least via the remote communication elements based on the prior reception of an instruction via the contact communication elements. A terminal for communication with such an electronic entity as well as methods for controlling and for customizing the electronic entity are disclosed.

Abstract: A method for automatic validation of a computer program can access a secure memory and a non-secure memory, the program using at least one coding function and at least one de-coding function. The method includes a verification step (E340) during which verification occurs to ensure that each function which is adapted in order to read data from the secure memory and to produce data in the non-secure memory is a coding function and that all data produced by the coding function is stored in the secure memory.

Abstract: A data processing method, whereby an element is subjected to a first operation with a given operand. The method includes a step of updating by a second operation a first variable (B; a0; S?p, S?q) or a second variable (A; a1; Sp, Sq), depending on whether a corresponding bit of the operand=0 or 1; and a step of testing a relationship between a first value (B; a0; S?) derived from the first variable and a second value (A; a1; S) derived from the second variable. A related device is also disclosed.

Abstract: A method for mounting a microcircuit module in a card body to make the card non-detachable without damage includes fixing the module (22) in a cavity (12) of the card body (11) with a resin after adjusting the adherence of the resin (30) on the wall of the cavity (12) so that it is markedly higher than its adherence on the module (22).

Abstract: Method for mounting an electronic component, such as a silicon chip, on a support which consists in: providing an electronic component (40) having connection pads, whereof one predetermined pad (41A) is provided with a bump (42); providing a support having (30) to the predetermined pad via the bump; aligning the predetermined pad provided with the bump with the terminal; contacting the bump and the terminal and assembling them in specific temperature and pressure conditions. Prior to contacting and fixing the bump and the terminal, the surface of the terminal is covered with an insulating layer (32), the insulating layer being a material selected so as to be traversed by the bump in the temperature and pressure conditions.

Abstract: A microcircuit card (31) comprising a microcircuit and a card body, characterized in that this card body is formed of a base (10) in which is formed a cavity provided with a bottom and an internal part fixed in the cavity and to which the microcircuit is joined, the internal part and the microcircuit (12) together constituting at least a part of a second microcircuit card (11) including at least a part of the body of said second card.

Abstract: A method of packaging financial transaction instruments includes preparing a batch of cards, where each card is provided with a first piece of machine readable information, and where the cards in the batch are in an order. A batch of packaging blanks is prepared, where each packaging blank is provided with a second piece of machine readable information. Each packaging blank is provided with a third piece of machine readable information, which is recorded onto a magnetic stripe carried by the packaging blank. A card is picked from a first ordinal position in the batch of prepared cards. A packaging blank is picked from a position, corresponding to the first ordinal position, in the batch of prepared packaging blanks. The picked card in the picked packaging blank is enclosed if and only if a matching condition is verified between the first and second pieces of information is verified.

Abstract: The invention concerns an electronic entity comprising an electronic circuit and an antenna one part of which at least forms a conductive circuit connected to two ends of the electronic circuit. The projection of the circuit formed by the antenna and the electronic circuit in a plane which is substantially parallel thereto, forms an intersection-free line and the antenna includes a winding which extends over strictly more than one turn.

Abstract: A dual communication fob assembly provided with an attachment area for a ring or a chain and including in combination: an insert including a first contactless communication device; and a base with a pocket in the base for holding at least a part of the insert when inserted therein and being provided with a second contactless communication device which is electrically separate from the first contactless communication device.

Abstract: A support (10) provided with at least first (12) and second (14) parts capable of displacing relative to one another along a selected axis of displacement (16), and a contactless electronic device (1) mounted in the first part (12) of the support and including an electronic microcircuit (3) and an antenna (2) electrically connected to the electronic microcircuit (3), and capable of being (electro)magnetically coupled with an external reading station (5), the electronic microcircuit (3) being capable of exchanging information with the outside. The second part (14) is provided with electromagnetic coupling attenuating elements, having a resonator circuit (7) coupled to the antenna (2), and situated in line with the antenna (2) when the first and second parts are essentially superimposed one above the other, and are capable of rendering the exchange of information with the outside inoperative or operative according to the distance between the first and second parts.

Abstract: A removable secure portable electronic entity includes elements for receiving a broadcast digital content, elements for sending the received broadcast digital content, secure elements for deferred retransmission of the received digital content adapted to prohibit reproduction of the received digital content prior to sending it and to instigate the deferred sending of the received digital content by the sending elements, the elements being adapted to operate in parallel mode or in quasi-parallel mode. In variants, the secure deferred retransmission elements include a unit for storing the received digital content, for example a non-volatile memory. In variants, the secure deferred retransmission elements include members for authentication of a user.

Abstract: A portable electronic entity includes a communication interface (110) with a host terminal (TH), a conversion system (170) for a signal received in a secure multimedia data flow and an element to transmit to the host terminal a flow of multimedia data obtained from the secure multimedia data flow. It also includes systems (160) capable of allowing host terminal restitution of the multimedia data flow that was transmitted.

Abstract: A method for creating a group signature of a message to be implemented by a member of a group in a system, the system including a trust authority, the group including at least the member provided with a secure portable electronic entity including storage elements and computing elements wherein are implanted a cryptographic algorithm. The method includes the following steps: generating via the computing elements a signature of the message using a private key common to the members of the group and integrating a data identifying the group member and a temporal data representing a temporal information of the member's membership to the group and of the date of the signature of the message, the private key common to the members of the group, the identifying data and the temporal data being stored in the storage elements.

Abstract: The invention relates to a flexible data support, comprising a support with at least first and second sheets (11, 12A, 12B, 12C) which can pivot relative to each other about an axis (P) along the edges of said sheets and a contactless chip housed in said support and comprising an electronic circuit (IC) and coupling elements (A1, A2) connected to said electronic circuit distributed about the first and second sheets which may be electromagnetically coupled to an external reading station. The electronic circuit comprises an information exchange section for exchange of information with the exterior, characterised in that said support is provided with a test device for verification by means of signals emitted by the coupling elements of a geometrical condition of the angular configuration of the first and second sheets and to generate, as function of the result of said test, a signal authorizing or preventing the activation of the exchange section of the electronic circuit.

Abstract: The pocket portable electronic entity (400) includes: connection element (420) for removable connection to a host station (300), first members (460, 470, 471) for secure communication with a remote server (100) via the connection element and the host station, second members (450, 455) for communication between the secure first communication element and a second portable electronic entity (500), and elements (440, 445) for communicating to the remote server via the secure first communication means data received from the second portable electronic entity via the second communication members.