Abstract: A method is provided for detecting a risk of replacement, at a sales point, of an authentic electronic payment terminal by a fraudulent electronic payment terminal. Wherein the method includes generating an alert when a number of transactions geographically associated with the sales point is above a pre-determined threshold.

Abstract: It is proposed a device and method for finding nilcatenations, and proposes nilcatenation detection techniques, which can be applied to blockchains, and even constitute a proof of useful work, as the periodic removal of nilcatenations keeps a ledger size as small as possible. Banks and blockchains need to keep track of an ever-increasing list of transactions between the accounts owned by their users. However, as time goes by, many of these transactions can be safely “forgotten”, in the sense that purging a set of transactions that compensate each other does not impact the network's semantic meaning i.e. the vector Bt of amounts representing the balances of users at a given point in time t. Nilcatenation refers to a collection of past transaction vectors having no effect on Bt. Removing these transactions yields a smaller, but equivalent set of transactions.

Abstract: The disclosure relates to a method for transmitting data and to a corresponding method for receiving data. According to the disclosure, in the method for transmitting data, a cryptographic processing operation is performed on the data to be transmitted, after this data has been pre-subdivided into blocks of data, and a tag representing each block of encrypted data is computed. The tag is then transmitted in such a way that a hacker in not able to reproduce a correct transmission of tags. The method of reception, for its part, ensures that when an incorrect tag is received (because of a hacking attempt), the processing of the data blocks is not immediately stopped but a differential processing is implemented in order to jam an attempt to analyze the behavior of the receiver.

Abstract: This document describes a system and method for a device to communicate efficiently and securely with another device by utilizing two different types of schemes for the generation of data to be transmitted and the handling of received data.

Abstract: Some embodiments are directed to a method and to a device allowing an access control system to be applied to the protection of streamed video. The inventive system and associated method allow an existing access control system of Marlin type to be used innovatively based on the execution of two successive operation phases allowing DRM rights to be acquired followed by the delivery of content and the decryption thereof.

Abstract: The invention relates to a method for transmitting data from a first terminal, called a sender terminal (TermE), to a second terminal, called a receiver terminal (TermR), the method being characterized in that it comprises: a step (100) for obtaining a piece of current time data (DTC); a step (110) for determining a piece of transmission time data (DTC) as a function of the piece of current time data (DTC) and at least one predetermined parameter; a step (120) for obtaining a piece of data to be encrypted (DaCh) from at least one piece of data to be transmitted (DaTr) and from at least one piece of current time data (DTC); a step (130) for encrypting, by means of an encryption key (KeyC), said preliminarily obtained piece of data to be encrypted (DaCh), this step delivering a piece of encrypted data (DCh); a step for transmitting said piece of encrypted data (DCh) as a function of said piece of transmission time data (DTT).

Abstract: A mobile communications terminal, namely a terminal of the type having a screen, at least one radio communications component and at least one wireless charging terminal. The terminal furthermore includes a component for transmitting an F2F signal by using the at least one wireless charging coil.

Abstract: A method for securing at least one memory zone of an electronic device. The method includes: detecting deallocation of at least one portion of the memory zone, a so-called deallocated portion; replacing at least one part of the deallocated portion with at least one predetermined instruction, a so-called warning instruction, or at least one combination of predetermined instructions, a so-called warning instruction combination; and marking the deallocated portion.

Abstract: Processing devices, methods and non-transitory computer-readable media for processing data are disclosed. The data comes from a contactless memory card. The device has at least one contactless memory card reader. Such a device also has: a keyboard for acquiring input data coming from an input peripheral; a processor for processing at least one sequence of a remote transaction initialized on the basis of data coming from a contactless card; and a switch or a cell for selecting a mode of operation that has at least two states. The at least two states are: a state, called an inactivation state, in which the processor and the at least one memory card reader are inactive; and a state, called an activation state, in which the processor is active and in which the input data entered through the input peripheral are controlled by the processor.

Abstract: A method is provided for processing data displayed on a screen of a multimedia kiosk, which has a contactless payment terminal. The method is implemented within the multimedia kiosk and includes detecting a presence of a user; and modifying, by using an interactive management module, a common advertisement message, broadcast by the multimedia kiosk, into a personalized advertisement.

Abstract: It is proposed a device and method for finding nilcatenations, and proposes nilcatenation detection techniques, which can be applied to blockchains, and even constitute a proof of useful work, as the periodic removal of nilcatenations keeps a ledger size as small as possible. Banks and blockchains need to keep track of an ever-increasing list of transactions between the accounts owned by their users. However, as time goes by, many of these transactions can be safely “forgotten”, in the sense that purging a set of transactions that compensate each other does not impact the network's semantic meaning i.e. the vector Bt of amounts representing the balances of users at a given point in time t. Nilcatenation refers to a collection of past transaction vectors having no effect on Bt. Removing these transactions yields a smaller, but equivalent set of transactions.

Abstract: The invention relates to a magnetic reading head to be mounted in a terminal, said head having a generally rectangular parallelepiped shape and comprising a face for reading data coming from a magnetic stripe, said face comprising at least one component for reading data coming from a magnetic stripe. According to the invention, such a magnetic reading head comprises at least one flexible printed circuit board for protection against electromagnetic disturbances, said flexible printed circuit board being positioned on at least one face different from said reading face.

Abstract: The invention relates to a process for transmitting streaming digital content to a client device for access to digital content. The inventive process makes it possible, in particular, to apply an access control system to the protection of direct-mode video streams. The process also makes it possible to significantly improve the security and safety of the system, based on a periodic mandatory back-communication on the part of the client device.

Abstract: A mobile communications terminal, namely a terminal of the type having a screen, at least one radio communications component and at least one wireless charging terminal. The terminal furthermore includes a component for transmitting an F2F signal by using the at least one wireless charging coil.

Abstract: Some embodiments are directed to a method and to a device allowing an access control system to be applied to the protection of streamed video. The inventive system and associated method allow an existing access control system of Marlin type to be used innovatively based on the execution of two successive operation phases allowing DRM rights to be acquired followed by the delivery of content and the decryption thereof.

Abstract: The invention concerns a method for deactivating a payment module attachable to a communications terminal, comprising: a phase for deactivating comprising at least one step for erasing the main memory of said payment module with the exception of a non-volatile memory zone in which an encryption key k is stored, said encryption key k being available only when said main memory is empty; a phase for verifying comprising: a step for verifying that said main memory is empty, delivering a positive or negative result of verification; if said result of verification is positive: a step for computing a response to a challenge preliminarily received by said payment module from an entity distinct from said payment module, said computation being implemented by means of said encryption key k; a step for transmitting said response to said entity.

Abstract: A method of auto-detection of attempted piracy of an electronic payment card. The method includes the following acts implemented by the card: detection of a sequence of suspect operations implemented in interaction with the card, and storing in the card a corresponding suspect status; interaction of the card with a distinct entity and authentication, by the card, of the distinct entity; and communication, by the card, of the stored suspect status to the authenticated distinct entity.

Abstract: A system is provided for processing data for surveillance bank cards. The system includes a module for introducing data for surveillance bank cards into a platform for payment by bank card, the module saving bank-card data, inserted into the platform for payment by bank card, to a data base known as a tracking data base. The system also includes a surveillance module for placing under surveillance the activity of the data for surveillance bank cards previously introduced into the platform for payment by bank card, the module saving, to the tracking data base, at least one record of tracking of the use of the bank-card data.

Abstract: A method is provided for detecting a risk of replacement, at a sales point, of an authentic electronic payment terminal by a fraudulent electronic payment terminal. Wherein the method includes generating an alert when a number of transactions geographically associated with the sales point is above a pre-determined threshold.

Abstract: A method for controlling access to preliminarily identified resources is disclosed. The method is implemented by an electronic device having means of access to said resources to be controlled. The method has: a step for receiving a request, coming from a program, for access to a current resource; a step for obtaining at least one access parameter for access to said current resource within a resource-characterizing data structure; and a step for modulating access to said current resource as a function of said at least one preliminarily obtained access parameter.