Abstract: The present invention relates to a method for symmetrical encryption or decryption of a data block from a secret key (K), the method comprising steps of: permutation (100) of at least one portion of the secret key (K) by means of a first permutation table (PC1?) so as to produce initial data, execution of several iterations, an iteration comprising steps of: rotation (102) of data dependent on the initial data so as to produce shifted data, permutation (104) of the shifted data by means of a second permutation table (PC2?) so as to produce a round key, execution of a plurality of encryption rounds (200) from the data block, an encryption round (200) using one of the round keys, generation of at least one of the permutation tables (PC1?, PC2?), the generation comprising determination of at least one function (F, G) variable from one encryption or decryption to another, composition of said function (F, G) with a predetermined permutation table (PC1, PC2), application of the inverse of said function (F,

Abstract: The invention proposes a method for the remote control of a locking equipment (2) for a vehicle (20) via a mobile terminal (1) comprising data processing means (11) configured to implement a given cryptographic function and biometric acquisition means (14), the mobile terminal (1) being connected to the locking equipment (2) and to a server (3) via a network (10), the method being characterized in that it comprises the implementation of steps of: (a) Issuing, from the terminal (1) to the server (3), an authentication request to the locking equipment (2); (b) Acquiring a candidate biometric datum by the acquisition means (14); (c) Verifying, by data processing means (31) of the server (3) or the data processing means (11) of the terminal (1), that the candidate biometric datum matches with a reference biometric datum; (d) Transmitting, to the mobile terminal (1) from the server (3), an encrypted form of a virtual key of the locking equipment (2); (e) Authenticating the mobile terminal (1) to the locking equ

Abstract: A method of recognizing individuals by means of at least one processor executing a recognition algorithm comprising the steps of: detecting biometric characteristics of a finger of a candidate for recognition while writing a signature by pressing the finger against a signature surface; encoding both the written signature and also the biometric characteristics in order to form signature data and biometric data of the candidate; and using the algorithm to compare the signature data and the biometric data of the candidate with signature data and fingerprint biometric data belonging to at least one individual and stored on a data medium.

Abstract: A method identifies a non-identified baggage item based on: acquisition of at least two images of the non-identified baggage of different types, the type of one image of a baggage item dependant on a point-of-view on the baggage in the image and/or on the nature of the data representing the baggage in the image taken among different natures of data comprising data representing the visible range and/or infrared data and/or data representing three-dimensional information; and, for each image type, on use of a neural network suited to the type for classifying the baggage represented by the image in a class of baggage classes defined for the type. Once obtained, the classes allow seeking of baggage corresponding to each class identified in a baggage database. Each baggage item in the database is associated with the baggage addressee. Each corresponding baggage item is compared with the non-identified baggage to identify the addressee.

Abstract: The present invention relates to a method for generating an electronic signature of a document associated with a condensate obtained by a given hash function comprising performing by data-processing means (11b) of a server (10b) of steps of: (a) Receiving said condensate and a zero-knowledge proof of the fact that said condensate is indeed the result of application of said given hash function to said document; (b) Verifying that said zero-knowledge proof is valid; (c) Generating an electronic signature of the document from said condensate.

Abstract: The invention relates to a method for obtaining a program intended to be executed by an electronic device (1), such as a smart card, comprising a non-volatile memory, the process comprising the insertion (E12, E14), in a source code, of a first function at the start of a source code instruction block, and a second function at the end of the source code instruction block, then generation (E16) of the executable program from the source code, wherein the first function is configured to disable a wear-reduction mechanism of the non-volatile memory, when the program is executed by the electronic device, and the second function is configured to enable the wear-reduction mechanism of the non-volatile memory, when the program is executed by the electronic device.

Abstract: The invention relates to a flexible electronic card comprising: a card body (1) comprising an upper surface (11) and a lower surface (12); at least one cavity (13, 13?) formed in the card body emerging from the upper surface; a fingerprint module (2) configured to acquire a fingerprint of a user, the fingerprint module being housed in the cavity (13) and flush with the upper surface of the card body; the fingerprint module (2) comprising a flexible substrate (22) comprising an active part (21), designated capture part, flush with the upper surface of the card body and a microcontroller (23) arranged below the substrate.

Abstract: A method and device for verifying the validity of an electronic document is provided. A device for capturing images and capturing a sequence of images displayed by a device for presenting the electronic document is activated. The sequence of images may include different two-dimensional barcodes displayed successively one after the other, where the two-dimensional barcodes represent a signature of the electronic document and parts of the electronic document. The two-dimensional barcodes are decoded, and the validity of the signature is verified by means of a public key. A message representing the result of the verification is generated.

Abstract: A method for protecting an electronic device executing a program against fault injection and type confusion attacks likely to affect a variable (Z) intended to be used by the program. The method includes calculating integrity check data (X, Y) of variable (Z), dependent on a type (T) of the variable (Z), and a value (V) of the variable (Z) stored in an execution stack (P1) and/or of a first addressing datum (A) stored in a first index register (ind1). The first addressing datum (A) adapted to locate the value (V) stored in the execution stack (storing the integrity check data (X, Y) on the variable (Z) in at least one control stack (P2, P3) different to the execution stack (P1). Storing in a second index register (ind2), a unique second addressing datum (A2) adapted to locate the integrity check data (X, Y) in the or each control stack (P2, P3).

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for obtaining, in real-time from an image capture device, a video stream comprising images of a document by a computing device. The computing device provides, for display in an image preview window, the video stream overlaid with a graphical capture guide. In response to detecting a lighting artifact in at least one image of the video stream, the computing device modifies the graphical capture guide within the image preview window. The computing device captures one or more of the images of the document from the video stream.

Abstract: A papillary print sensor comprising in superposition a contact surface to which the print to be imaged is intended to be applied, an array optical sensor and illuminating device. The illuminating device is arranged between the contact surface and a detecting surface of the array optical sensor, and consists of a plurality of organic light-emitting diodes, referred to as OLEDs. Each OLED extends uninterruptedly over more than a third of a width (L1) of the detecting surface, and the OLEDs extend together along one or two series of patterns that are parallel to one another and distributed along the length (L2) of the detecting surface. This configuration of the OLEDs allows in particular the transistors for controlling the OLEDs to be placed off the detecting surface (125).

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: 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: 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.