Abstract: A contactless transponder includes an antenna and an electronic module placed on a substrate and connected to the antenna by a conducting wire passing through the contact pads in the form of at least one stitch. The module is produced as a single block, having at least one integrated circuit and contact pads. The module is transferred to the substrate before connection to the antenna.

Abstract: A cryptographic operation includes calculating a multiplication of an element of an additively denoted group by a scalar. After two registers R0+R1, are initialized iterations are carried out over the components Ki of the scalar K. If Ki of the scalar equals 0, then the value in register R1 is replaced by 2(R0+R1) If Ki equals 1, the value in register R0 is replaced by 2(R0+R1). At the end of the algorithm, the value of the register R0 is returned as the calculated result This method poses the advantage of carrying out a calculation of multiplying by a scalar by carrying out only doubling and adding operations of the type 2(A+B).

Abstract: The invention relates to a method of creating a forgery-proof customised and/or printed graphic element on a support using an electromagnetic beam. At least one official marking seal is used which can divert and/or deform an electromagnetic beam. The support is printed or customised using the electromagnetic beam, which is diverted and/or deformed by the official marking seal. The invention also relates to the support thus obtained and to the official marking seal.

Abstract: A method for processing digital data X of an item of software coded on lx bits, for detecting faults in an electronic circuit comprising at least one bus, a processing unit, a memory for running the software, and a hardware architecture. The digital data X is transformed into digital data Z coded on lx+ly bits, the additional ly bits being the result of an integrity function f applied to the data X. The digital data Z is processed by the set of hardware resources of the circuit, these hardware resources working on words of lx+ly bits. The integrity of data Z is verified during the processing step.

Abstract: A method of assessing compatibility between at least one application and at least one processing device that host and/or executes and/or interacts with the application. A comparison is carried out between: (i) at least one profile from among the profiles associated with the devices, that respectively describe the functions supported by each device, and (ii) at least one profile from among the profiles associated with the applications that respectively describe the functions used by each application, in order to sutomatically establish an analysis of the functional compatibility between one or more applications and one or more devices.

Abstract: A smart card is initially connected to a first mobile terminal and includes a first directory file adapted to store first contact cards. To access the first contact cards, initially stored in a directory of the first terminal, from a second mobile terminal an application in the first terminal copies each of the first cards of the directory in the first directory file, if the latter does not include the first card. In the second terminal connected to the card withdrawn from the first terminal, the application copies each of the first cards of the first directory file in the file of the second terminal, if the latter does not include the first card and if the first directory file is inaccessible by the second terminal.

Abstract: The invention concerns a method for managing access to a non-volatile memory (VNVM), characterized in that said non-volatile memory (VNVM) results from the association of a non-volatile memory of a first type (NVMA) comprising first characteristics of capacity and granularity, with a non-volatile memory of a second type (NVMB) comprising second characteristics of capacity and granularity, such that said non-volatile memory (VNVM) resulting from said association has the characteristics of capacity of said non-volatile memory of the first type and the characteristics of granularity of said non-volatile memory of the second type.

Abstract: A countermeasure method in an electronic component using a secret key algorithm K on an input message M executes an operation OPN(D) on input data D. A random value, of one first random information U, is generated that is of identical size as the input information D. A second random information V, is calculated by performing an exclusive OR operation between the input information and the first random information U. The operation OPN or the sequence of operations are successively executed on the first input information U and to the second random information V, supplying respectively a first random result OPN(U) and a second random result OPN(V).

Abstract: The invention relates to a fluid supply assembly for a device, particularly a printing machine. The assembly includes a lower base and is of the type in which the fluid is conditioned in an upper container which is intended to be connected to a fill opening in the base by a coupling. In order to mount the coupling on the base, the coupling is moved linearly along a vertical assembly axis and then pivoted around the assembly axis. The coupling has at least one keying pin which is received in a complementary groove in one face of the base when the coupling is being moved linearly. The invention also relates to a printing machine containing one such assembly.

Abstract: A system downloads data made available in a campaign server to portable communicating objects across a radiocommunications network during a data downloading campaign. A campaign manager in the campaign server transmits campaign rules to a presence server connected to the radiocommunications network. A presence manager notifies the campaign server that an event relating to the presence of at least one communicating object in the radiocommunications network satisfies a campaign rule, in order to initiate a downloading of data from a campaign server to the available communicating object.

Abstract: An adapter electrically connects an integrated circuit mini-card in a main electronic integrated circuit memory card connector having greater space requirement than the mini-card. The mini-card has surface contact strips and the adapter includes a main body capable of being connected to the main connector and a housing for receiving the mini-card at the surface of the main body. The housing includes inside bond pads for connection to the electric contacts of the mini-card. A mobile cover is capable of taking up a position wherein it closes at least partly the housing while maintaining the mini-card in electrically connecting position in the housing and stiffening the structure of the adapter.

Abstract: Access rights lists, such as capacity or access control lists, are dynamically managed in a data processing element such as a smart card from an administrator server. To access an access rights list from the server, the list is signed in the server so that a signature can be transmitted to the card. The card compares the signature received from the server to signatures determined according to the access rights lists contained in the card and keys associated with those lists. Server access to an identified list is only authorized when it corresponds to a signature which is found among the determined signatures in the card and which is identical to the received signature.

Abstract: A table establishes correspondence between first sets of at least one number, expressed in accordance with a signed code where each number may have the value of 0, 1 or ?1, and second sets of at least one number, expressed according to a simple form where each number may have the value 0 or 1. An input sequence of numbers is decomposed into sets of numbers present in the correspondence table. For each set of numbers derived from the decomposition, a corresponding set of numbers is given by the correspondence table. A sequence of numbers is compiled from the sets retrieved from the table. The invention is in particular useful in various algorithms, such as in cryptography, for example to store values in signed binary mode, in compact non-adjacent form with only the numbers 0, 1 and/or for rapidly producing random numbers in the non-adjacent form.

Abstract: A method for securing the execution of a session with a data processor, such as a smart card, under the control of at least two entities, such as servers. Session numbers and session keys are transmitted to the entities. The session number and key are applied to an algorithm in the data processor and the respective entity to produce a result and signature. The results and the signatures are transmitted to the data processor. A session corresponding to the results from the data processor is executed when the signatures are identical to the results. In another embodiment, one of the entities receives a delegation of a third entity to authorize execution of the session.

Abstract: A method and associated device for checking a biometric signature by a simple and secure calculation adapted to personal objects of the chip card type. The method is based on the storage within the object of an obscured biometric signature and an associated authentication code. A terminal capturing a fingerprint compares the fingerprint data with the obscured biometric signature transmitted by the card and transfers the result of this comparison to the chip card, which validates this result with the authentication code.

Abstract: Access control to data processing means, such as a smart card, is made secure by simulating a comparison block by block of part of a secret code with part of a presented code through a block-by-block comparison of part of the presented code and part of a determined number when the presented code is found to be erroneous. Each time the card is used, a constant number of operations are applied to the presented code and at least for part of the secret code, and at most for a complementary part to the determined number, thus avoiding different signatures of power consumption for different presented codes.

Abstract: There exist numerous public key probabilistic encryption algorithms. Most of these algorithms do not have a maximum security level against someone capable of chosen ciphertext attacks. The disclosed method provides a construct to enhance the security of any public key probabilistic or deterministic encryption algorithm to achieve an optimal security level.

Abstract: This invention improves the intelligence of chip cards (SIM) in mobile radiotelephone terminals, so that a subscriber may, through the terminal, easily access databases (DB), attached to a server of services (SV). It facilitates the dialog between a subscriber who owns a mobile radiotelephone terminal and a server of services through the medium of an exchange of request and response messages. The card comprises a browser (NV) which interacts with the server and which can be triggered by selection in the mobile terminal or remotely by the server. The card and the server exchange short messages. Libraries of supplementary functions (BI), stored in the card, can be triggered by the server through the browser. The invention also relates to communications between the card that is equipped with the browser and the server.

Abstract: The invention concerns a method for deploying an application consisting of several distributed remote elements, from a first data processing means containing descriptors of said elements, onto a second data processing means connected to the means for implanting said element, and for executing the deployed application. Said method comprises at least steps which consist in: selecting (2) at least one element of the application as priority element; deploying (3) onto the second processing means the priority elements or elements; and executing (5) the application with the second processing means when the priority element or elements have been deployed.

Abstract: In order to request the presentation of an operator indicator in a user's terminal having a first mobile terminal connected to a first cellular radiocommunications network, the operator is related to a second mobile terminal whose call number is stored in the user's terminal and is transmitted therefrom to a server of the first network. The server compares the transmitted call number with call numbers of the first network mobile terminal contained in a first list, in such a way that it is enabled to read the operator indicator corresponding to the transmitted call number. A module in the form of a UICC card stores the indicator and submits it to the user for informing the user whether the call number belongs to the first network or belongs to another network.