Abstract: Method for detecting attempted fraud by using an artificial material during a biometric acquisition, including: illuminating, with lighting, a surface of an object having a texture, acquiring a first image of the surface; illuminating, with non-uniform lighting, the surface and acquiring a second image of the surface, the non-uniform lighting causing light to diffuse within the illuminated material at an intensity that varies according to a law that is a function of a first position parameter and is invariable along a second position parameter; computing a correction, varying along the first position parameter, that is to be locally applied to the first image to bring the amplitude of the texture on the first image substantially to the level of that on the second image; generating, on the basis of the correction, information relating to the artificial or non-artificial nature of the material.

Abstract: Authentication device and method for a system that includes a subscriber device and a companion device. The authentication method includes the subscriber device delivering to the companion device a temporary profile and an authentication response signed by the subscriber device for sending to a server, installing the temporary profile to configure a second wireless communication interface of the companion device, and requesting a second authentication from the server via the second interface by using the delivered authentication response so as to authorize the second interface when the companion device and the subscriber device are not in communication with each other via the first communication interface. The device and method may be used by systems that include a subscriber device (e.g., a mobile telephone) and a companion device, e.g. a connected watch or object.

Abstract: A compact device for capturing an imprint of a body part working by total reflection with dark background. The device includes a plurality of optically coupled elements including: a first transparent plate including a top face on which the body part bearing the imprint to be imaged can rest; a light source; a screen opaque to light situated below the first transparent plate including a network of holes; a second transparent plate situated below the opaque screen; and a sensor capable of generating an imprint image situated below the second transparent plate; each transparent plate having a refractive index greater than a refractive index of air, and the light source being able to be positioned at the level of the screen to directly illuminate the top face or below the screen to illuminate the top face through the holes.

Abstract: A facial recognition method is disclosed that is executed by a system comprising an image capture device and a light source able to illuminate a face positioned in front of said device. A plurality of images of a face is acquired, the light source producing a different illumination of the face at each image acquisition, and values representing the face from the plurality of images are extracted. To this aim, a first image of a face is acquired. An SNR value, referred to as the estimated value, of the first image is estimated from a reference SNR value, from image acquisition parameters and from values representing distances between the face and said device. Finally, the estimated value is used in order to determine whether or not the recognition procedure should be executed.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying, by a computer system, at least one line of a plurality of lines that are disposed at a first layer of a card; providing, by the computer system and based on the identified at least one line, control signals to a laser device of the computer system, the control signals indicating coordinates for the identified at least one line; generating, by the laser device and based on the control signals, one or more line patterns that are embedded at a particular layer of the card.

Abstract: 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 (C2); 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.

Abstract: The invention relates to a cryptographic processing method comprising multiplication of a point P of an elliptic curve on a Galois field by a scalar k, the multiplication comprising steps of: storing, in a first register, a zero point of the Galois field, executing a loop comprising at least one iteration comprising steps of: selecting a window of w bits in the non-signed binary representation of the scalar k, w being a predetermined integer independent of the scalar k and strictly greater than 1, calculating multiple points of P being each associated with a bit of the window and of the form ±2iP, adding or not in the first register of multiple points stored, depending of the value of the bit of the window with which the multiple points are associated, wherein the loop ends once each bit of the non-signed binary representation of the scalar k has been selected, returning a value stored in the first register.

Abstract: Method for monitoring individuals in a place equipped with cameras, the method including the steps of: detecting representative characteristics of an individual in a first zone of the place; detecting representative characteristics of an individual in at least a second zone and comparing these representative characteristics with representative characteristics previously stored in order to determine whether the individual detected in the second zone has been detected in other zones; confirming the determination from a topography of the place by checking consistency of a path of the individual from one zone to another and of the time model by comparing temporal detection information on the representative characteristics in the zones. Device for implementing this method.

Abstract: The invention provides a method for video surveillance in a video-surveillance system comprising the steps of capturing video images by a video camera observing an area of surveillance; wherein the capturing the video images comprises making objects in the area of surveillance irrecognizable or invisible in captured video images; receiving, by a processor, a predetermined signal; based on the received predetermined signal, generating a first control signal by the processor and transmitting the first control signal to the video camera; receiving the first control signal by the video camera; based on the received first control signal, stopping making objects in the area of surveillance irrecognizable or invisible in the captured video images.

Abstract: The present invention relates to a method for executing a program (P) in an electronic device such as a smart card, including: computing, during execution of the program (P), an integrity datum (X1, X12) relating to a set (E) of code instructions of program (P), the set (E) having a single code instruction (Inst_1) or a sequence of code instructions (Inst_1, Inst_2) intended to be implemented consecutively, after computation of the integrity datum, executing a last code instruction of the set (E) by a processor of the electronic device, after execution of the last code instruction, integrity checking the set (E) on the basis of the computed integrity datum (X1, X12), to generate a result, signaling or not signaling an error as a function of the generated result.

Abstract: A method for determining a point spread function of an imaging system. The method includes: for each position in a plurality of positions of a target in an optical field of the imaging system: acquiring an image of the target, referred to as the real image; obtaining a synthetic image of the target representing a digital model of the target adjusted to a zone of the real image corresponding to the target so that the model coincides with the zone; estimating the point spread function using the real image and the synthetic image; and calculating an optical transfer function by applying a Fourier transform to the point spread function; calculating an average optical transfer function from the optical transfer functions calculated for each position in the plurality of positions; and obtaining an average point spread function by applying an inverse Fourier transform to the average optical transfer function.

Abstract: An identification document includes a first layer and a second layer fused to the first layer. The first layer and the second layer include polyester, and the identification document is non-delaminable. Forming the identification document includes providing variable data on a surface of a first layer including polyester, aligning the first layer and a second layer including polyester, and fusing the first layer and the second layer to yield a fused identification document.

Abstract: A method for detecting a document fraud is disclosed. A first image of a first document and a second image of a second document are obtained. A procedure of detection of zones sensitive to document frauds are applied in the regions of the first image and of the second image registered on the first image. Each sensitive zone detected is then divided into a plurality of subparts. A measurement of dissimilarity is calculated between corresponding subparts from the first image and the registered second image. It is then determined whether the first document is identical to the second document from measurements of dissimilarity. If the first document is different from the second document, a level of difference is determined between the first and second documents according to a value representing a proportion of different subparts; and a fraud is detected when the level of difference is below a third predetermined threshold.

Abstract: A method of detecting attempted fraud against a system recognising the iris of the human eye includes generation of a first image of an iris using first means of image capture in a visible light spectrum, and generation of a second image of said iris using second means of image capture in a near infra-red spectrum. The method also includes determination of at least one characteristic of the first image as a function of respective optical characteristics of pixels of a plurality of pixels of this first image and determination of at least one characteristic of the second image determined as a function of respective luminous intensities of pixels of a plurality of pixels of this second image. As a function of these determined characteristics, a signal representative of suspected detection of attempted fraud is generated.

Abstract: A pyroelectric sensor includes several pixels distributed above a substrate and each pixel includes a first portion made of a pyroelectric material, in direct physical contact with a charge collection electrode, a second portion made of a pyroelectric material, in direct physical contact with a charge collection electrode, the first portion, the second portion and the at least one charge collection electrode being superposed above the substrate, at least one heating element to heat the first and second portions including a pyroelectric material, and an electronic device to measure a difference between charges generated by the first portion including a pyroelectric material and charges generated by the second portion including a pyroelectric material. The pyroelectric sensor makes it possible to suppress a useless part of a measurement signal. It is particularly advantageous for taking an image of a papillary print.

Abstract: Described are methods and systems for provisioning a subscriber profile in a secure module, such as a SIM card. The methods and systems may perform operations that may include receiving a request for provisioning a subscriber profile accompanied by parameters of a mobile terminal associated with the subscriber profile, and configuring the terminal when notification is received of the profile being activated, the notification coming from the secure module. Variations of the systems and methods are applicable to terminals including a secure module for hosting a subscriber profile to a mobile communications network.

Abstract: The invention relates to a skin print sensor (120) comprising a plurality of elementary acquisition cells (121) which are arranged in and/or on a substrate and each of which includes: a pyroelectric conversion element (PYR) comprising first and second electrodes that are separated by a layer of pyroelectric material, the first electrode being connected to a node (GND) applying a reference potential of the sensor, and the second electrode being connected to a reading node (SN) of the cell; and a third electrode (EL) which is connected to the reading node (SN), is coated with a dielectric layer and is designed to form a capacitance along with the skin of a user.

Abstract: Disclosed is a method implemented in an identity document including a microcircuit and a unit enabling the microcircuit to communicate with a terminal, the microcircuit being designed to permit the transmission of data obtained (directly or indirectly) from data memorized in a storage zone in response to a request received from the terminal, furthermore including the following steps: reception by the microcircuit of an identifier of the terminal; at least partial comparison of the identifier of the terminal and of at least one portion of an identifier stored in the microcircuit; and performance of a set action depending on the result of the comparison. An identity document in which such a method is implemented is also described.

Abstract: The invention relates to a bank card (100) comprising a presentation surface of a pictogram (120) coding at least one item of information for executing a transaction.

Abstract: A method for the authentication of a first electronic entity (C) by a second electronic entity (H), wherein the first electronic entity (C) implements the following steps: reception of a challenge (HCH) from the second electronic entity (H); generation of a number (CCH) according to a current value of a counter (SQC) and a first secret key (K-ENC); generation of a cryptogram (CAC) according to the challenge (HCH) and a second secret key (S-MAC); and transmission of a response including the cryptogram (CAC) to the second electronic entity (H), without transmission of the number (CCH).