Nxp B.v.

Quotainne Enterprises LLC

Bundesdruckerei Gmbh

Mathias Wagner

Thomas Ernst Wille

Manfred Paeschke

Franz Amtmann

Pim Theo Tuyls

Bruce Murray

Hauke Meyn

Oliver Muth

Ralf Malzahn

Maarten Vertregt

Hans De Jong

Michael Knebel

Kim Nguyen

Frans J List

Frank Zachariasse

Arjan Mels

Thomas Rottschäfer

Joachim Garbe

The invention relates to a data carrier () with a chip () which stores energy () as well as information for contact-bound or contactless inductive communication, and with a plurality of excitable chip sensors () integrated in the chip (), which, after excitation (), pass on a signal () to a CPU () of the chip (), in which the signal () is processed. The invention is characterized in that, independently of storing energy () as well as information by the chip (), the excitation () is specifically adjustable by the chip () for the purpose of additionally storing information and is adaptable to the requirements of processing the signal () in the CPU ().

Data carrier with a chip and a plurality of sensors

In a method for generating a cipher-based message authentication code, a state array () comprised of rows (-) of bytes (S'-S&#x2032;) and columns (-) of bytes (S&#x2032;-S&#x2032;) based on a message to be transmitted is generated. The cipher-based message authentication code is generated by retaining the bytes () of at least one row () of the state array ().

Method for generating a cipher-based message authentication code

A method for secure data reading and a data handling system is provided. The method protects the data reading from fault attacks by repeating read request in an interleaved manner, in particular the method comprises the steps of (M) dispatching a first read request; (M) dispatching a second read request; (M) dispatching a further first read request; and (M-) producing an anomaly signal if a first result produced by the memory in response to the first read request does not agree with a further first result produced by the memory in response to the further first read request.

Method for secure data reading and data handling system

A contactless tag reader device comprises upper and lower electrodes which together define a tag location zone between them in which multiple tags can be placed. The lower electrode and the upper electrode are offset from each other such that they substantially do not overlap. This structure is used to sandwich tags vertically between two horizontally (laterally) offset reader electrodes. This enables power coupling and data transfer using capacitive coupling.

Tag communication devices

It is described a method for providing an electronic key within an integrated circuit () including both a volatile memory () and a non-volatile memory (). The described comprises starting up the integrated circuit (), reading the logical state of predetermined data storage cells () assigned to the volatile memory (), which data storage cells () are characterized that with a plurality of start up procedures they respectively adopt the same logical state, and generating an electronic key by using the logical state of the predetermined data storage cells (). Preferably, the predetermined data storage cells () are randomly distributed within the volatile memory (). It is further described an integrated circuit () for providing an electronic key. The integrated circuit () comprises a volatile memory () comprising predetermined data storage cells (), which are characterized that with a plurality of start up procedures they respectively adopt the same logical state, and a non-volatile memory () having information stored upon regarding the predetermined data storage cells (). Thereby, the electronic key is defined by the corresponding logical states of the predetermined data storage cells ().

Security storage of electronic keys within volatile memories

A control device is connected to at least one encryption/decryption device via at least one communication device. The control device is connected to a round key generator via at least one further communication device. The control device has at least one external key input, the at least one encryption/decryption device has at least one external data input and at least one external data output, and the at least one encryption/decryption device and the round key generator are decoupled from one another.

Processor for encrypting and/or decrypting data and method of encrypting and/or decrypting data using such a processor

In order to further develop an electronic memory component (or), comprising at least one memory cell matrix () which is embedded in and/or let into at least one doped receiving substrate (), in such a way that a light incidence taking the form of a so-called light attack is detected directly or sensed immediately without dead times (=contribution to chip development), it is proposed,&#x2014;that the receiving substrate () be covered and/or surrounded at least partially and/or on at least one of its surfaces remote from the memory cell matrix () by at least one top/protective substrate () oppositely doped to the receiving substrate () and&#x2014;that at least one of the substrates (or), for example the receiving substrate () and/or in particular the top/protective substrate (), be in contact (or) or connection () with at least one circuit arrangement (orrespectively) for the detection of voltages or currents caused by charge carriers generated upon light incidence.

Electronic memory component with protection against light attack

Growing community of inventors

Alvesen-Rosengarten, Germany

Mathias Wagner