Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Alan Pestrin

Oscar Garcia Morchon

Willem Charles Mallon

Sebastiaan Jacobus Antonius De Hoogh

Kumar Arulandu

Oscar Garcia-Morchon

William Charles Mallon

Some embodiments are directed to a keyed message authentication code (MAC) device () for computing a keyed MAC for an input message using encoded representations. The keyed MAC device may be configured to apply a sequence of compressions functions, at least one of which takes a state as input in an encoded representation.

Whitebox computation of keyed message authentication codes

Some embodiments are directed to a compiling device () configured for selecting of protective transformations to improve security of a computer program. The compiling device is configured to assign protective transformations to parts of the data flow graph, and obtain a compilation of the computer program representation from at least the data flow graph and the assigned protective transformations which satisfy the security and/or the performance target.

Compiling device and method

Some embodiments are directed to a compiler device () arranged for obfuscation of a computer program. The compiler device performs a live variable analysis on the computer program representation, and modifies the computer program representation to encode a first variable using at least a second variable as an encoding parameter.

Compiler device with masking function

Some embodiments are directed to a server device () and a client device () arranged to authenticating a user of client device (). The user has access to an authentication string. Server device () is configured to encrypt a set of character/position data according to a homomorphic encryption algorithm. The client device allows the user to select a subset from the encrypted set from which a verification number is computed using the homomorphic operation.

Homomorphic encryption for password authentication

Some embodiments are directed to a compiler device () configured to identify a sub-graph () in a data flow graph having one or more output nodes marked as encoded and one or more output nodes marked as non-encoded, and to replace the sub-graph by an encoded first sub-graph (), and a non-encoded second sub-graph (), wherein the first sub-graph has only encoded output nodes, and the second sub-graph has only non-encoded output nodes.

The invention relates to a flying device () arranged to fly in a space and to present an image in that space, a system comprising multiple flying devices () for presenting an image in a space and a method for presenting an image in a space using a flying device (), wherein the flying device () is arranged to fly in the space under control of a control signal, the flying device () comprising one or more light units () arranged to emit multiple light beams () a communication unit arranged to receive the control signal and a processing unit arranged to control, based on the received control signal a position of the flying device and a light output of each of the multiple beams ().

Growing community of inventors

Salzburg, Austria

Alan Pestrin