Abstract: Ensuring user privacy in a publisher-subscriber communications environment. Storing, by a user-identifier mapping server, a user-identity database mapping user identity to subscriber-anonymized user identifier and subscriber identifier for users of said plurality of subscribers. Receiving, by the user-identifier mapping server, an information-request message from a subscriber, the information-request message concerning a notification message from a publisher, the notification message including an anonymized username of a first user of the publisher and wherein the username of the first user is anonymized using the one-way anonymization function. Upon receiving, by the user-identifier mapping server, the information-request message, determining from the user-identity database whether the first user is a user of the subscriber and transmitting a response message to subscriber indicating whether the first user is a user of the subscriber.

Abstract: Provided is a computer implemented method of aggregating distributed numerical data without disclosing said data By way of a user computer, an asymmetric cryptography system is provided having a public key of a user, where the numerical data of the user is stored and which user computer has access to the public key of other users, wherein a control unit as well as other user computers can connect and communicate with each other and wherein said numerical data related to each specific user is stored on the associated user computer. The method provides for each user to add a random figure to his statistical value, creates portions of this sum value intended and encrypts every portion value with the public key of one of the other users. Other embodiments are disclosed.

Abstract: A method for downloading an updated profile includes a) receiving by a first server an enrolment request with a subscriber identifier, b) receiving by a second server data for provisioning the second server for the subscriber, c) receiving by a third server a command for downloading an updated profile accompanied with the subscriber identifier and an profile identifier, d) sending from the third server to the second server a request for at least one data update accompanied with the subscriber identifier, e) sending from the second server to the third server the data update, f) associating by the third server the data update and a profile, g) sending from the third server to the device or a chip the associated updated profile, i) activating by the device the associated updated profile, and j) sending to the second server a message that the associated updated profile is activated.

Abstract: The present invention relates to a biometric system (FBS) comprising a sensor (FS) and a secure execution environment (SEE) as separate physical components, said biometric system being intended to be used in cooperation with a biometric application (BA), wherein said secure execution environment (SEE) comprises a data processing component (DP) and a secure memory (SEM) storing data enabling to access calibration data as determined at the time of the physical pairing of the sensor (FS) and the secure execution environment (SEE), said data processing component (DP) using the calibration data as retrieved when raw biometric data are received from the sensor (FS) to produce biometric sample to be used in the biometric application (BA).

Abstract: Security article and method for producing a security article. The method includes microprinting on a patch an array of microimages, placing a first translucent layer over the substrate and first patch, and laminating the substrate, the patch, and the first translucent layer using a lamination tool. The resulting security product includes a microlens array is located in the first translucent layer in register with the patch such that microimages have a one-to-one correspondence with lenses of the array of microlenses, wherein when the microimage array is viewed by a viewer through the microlens array, a composite image is visible to a viewer of the security article.

Abstract: A data carrier (1) comprises at least a first guiding element (2), at least a first processing element (3), and at least a first security element (4). The first processing element (3) is arranged after the first guiding element (2) with respect to an extension direction (E). The first guiding element (2) is configured to guide impinging electromagnetic radiation towards the first processing element (3). The first processing element (3), in an unprocessed state, is semi-opaque or opaque. In a processed state after being impinged by electromagnetic radiation that is irradiated through the first guiding element (2) onto the first processing element (3), the first processing element (3) in the region of impingement comprises at least a first processed region (5) in the form of a transparent region or translucent region or a hole.

Abstract: The present invention relates to a method to generate a slap/fingers foreground mask to be used for subsequent image processing of fingerprints on an image acquired using a contactless fingerprint reader having at least a flash light, said method comprising the following steps: acquisition of two images of the slap/fingers in a contactless position in vicinity of the reader, one image taken with flash light on and one image taken without flash light, calculation of a difference map between the image acquired with flash light and the image acquired without flash light, calculation of an adaptive binarization threshold for each pixel of the image, the threshold for each pixel being the corresponding value in the difference map, to which is subtracted this corresponding value multiplied by a corresponding flashlight compensation factor value determined in a flashlight compensation factor map using an image of a non-reflective blank target acquired with flash light and to which is added this corresponding valu