Robert Boschgmbh

Matthew Lewis

Paulius Duplys

Robert Szerwinski

Jochen Reinmuth

Eberhard Boehl

Jamshid Shokrollahi

Jorge Guajardo Merchan

Benjamin Glas

Andreas Mueller

Peter Schmollngruber

Heiko Stahl

Markus Ihle

Ralf Schellin

A MEMS relay. The MEMS relay includes: a movable switching element, on which a second switching surface is arranged in a first end section; a substrate having a first switching surface arranged thereon, which is designed to interact with the second switching surface; a switching electrode, to which an electrical switching voltage may be applied, the movable switching element being able to bring the second switching surface into contact with the first switching surface by way of an electrostatic force generated by the electrical switching voltage; at least one second compensation surface arranged in an end section of the movable switching element opposite the second switching surface; and a first compensation surface, which is designed to interact with the second compensation surface and is galvanically connected to the first switching surface via a cable.

MEMS relay

A MEMS switch that includes a substrate with a first insulating layer and a silicon layer thereabove, a fixed portion and a movable switching portion being formed in the silicon layer. A first metal layer is situated in recesses in the silicon layer at a side of the silicon layer facing away from the substrate, the first metal layer forming at least one switchable electrical contact between the fixed portion and the switching portion. A method for manufacturing a MEMS switch including at least one embedded metal contact is also described.

Method for manufacturing a MEMS switch having an embedded metal contact

A MEMS switch having a substrate, a micromechanical function layer situated above the substrate, and a fixed part and an electrically operable, deflectable switch element are developed in the micromechanical function layer, the switch element for closing an electrically conductive contact with the fixed part being suspended on at least one first spring in a deflectable manner. In a first operating state, the switch element is in a first position at a first distance from the fixed part, and the electrical contact is open. In a second operating state, the switch element is in a second position at a second distance from the fixed part, and the first spring is deflected and exerts a first restoring force, and the switch element establishes an operative connection with at least one second spring and the electrical contact is open. In a third operating state, the switch element is in a third position.

Capacitively operable MEMS switch

A system includes a MEMS device and a key generating device formed over the substrate. The key generating device is configured to generate a cryptographic key based on a property of the MEMS device and the MEMS device is configured to output a signal indicative of a sensed parameter. The generated cryptographic key is based on the influenced output signal of the MEMS device.

System and method for cryptographic key identification

A device for processing data includes: an input interface receiving input data; a processing unit processing data; and an encoding unit encoding data words which are obtained as input data at the input interface data in order to obtain encoded data words, the data words being encoded in such a way that a predefined portion of measured values which characterize the encoded data words and/or their processing by the device and which are ascertainable as a function of at least one physical variable of the device has a difference from a default value, the difference being less than or equal to a predefinable threshold value. The encoding unit executes an encoding rule for encoding the data words as a function of at least one encoding parameter, and the processing unit processes the encoded data words.

Device and method for processing data

A device for processing data, the device having an input interface for receiving input data and a processing module for processing data, characterized in that an encoding unit is provided, which is configured to encode data words received at the input interface as input data, in order to obtain encoded data words; measured values characterizing the encoded data words and/or their processing by the device being ascertainable for encoded data words as a function of at least one physical variable of the device; the encoding unit being configured to encode the data words in such a manner, that a specifiable proportion of all measured values, which may be at least approximately 50% of all measured values, exhibit a difference from the setpoint value, which is less than or equal to a specifiable threshold value; and the processing module is configured to process the encoded data words.

A method and an assemblage for post-processing an output of a random source of a random generator are presented. In the method, an output signal of the random source is compressed, thereby yielding a sequence of compressed signal values that are checked in terms of their distribution.

Method for post-processing an output of a random source of a random generator

A method for determining a cryptographic key for a MEMS device includes identifying physical properties for the device. A feature vector having a plurality of values is determined. Each of the values correspond to different physical properties. The cryptographic key is determined from the feature vector. The cryptographic key can be determined using a fuzzy extractor. The cryptographic key can be determined using different feature vectors corresponding to different channels in a device or different MEMS structures in the device.

A method for detecting a correlation of a first ring oscillator with a second ring oscillator and a system for carrying out the method are provided. In the method, combinations of concatenations are compared to chronologically preceding concatenations.

Method for detecting a correlation

A device for carrying out a cryptographic method has an input interface for receiving input data, an output interface for outputting output data, and a cryptographic unit for carrying out the cryptographic method. A first functional unit is provided which is designed to convert at least a portion of the input data into transformed input data using a first deterministic method, and to supply the transformed input data to the cryptographic unit, and/or a second functional unit is provided which is designed to convert at least a portion of output data of the cryptographic unit into transformed output data using a second deterministic method, and to supply the transformed output data to the output interface.

Device for carrying out a cryptographic method, and operating method for same

A method for transmitting a sequence of data blocks to be transmitted includes: one first piece of authentication data and one second piece of authentication data different from the first are formed relative to a selected data block; the selected data block, the first piece of authentication data and the second piece of authentication data are transmitted to a receiver; and the receiver checks (i) a validity of the received data block with the aid of the received first piece of authentication data and (ii) a validity of the received first piece of authentication data with the aid of the received second piece of authentication data.

Secured transmission of a sequence of data to be transmitted

An electronic device for processing data includes: an input interface for receiving input data; a processing module for processing data; and an encoding unit configured to encode data words received at the input interface as input data, in order to obtain encoded data words. The encoding unit is configured to encode the data words in such a manner that a specified proportion of all encoded data words have a specified Hamming distance and/or a specified Hamming weight. The processing module is configured to process the encoded data words.

Device and method for encoding input data based on hamming distance and/or weight

A memory device having a primary memory element, in which the memory device includes an evaluation device to ascertain whether the primary memory element experiences a state change and to activate a secondary memory element so that if (a) the primary memory element experiences a state change, the secondary memory element does not carry out a state change, and if (b) the primary memory element does not experience a state change, the secondary memory element carries out a state change.

Memory device

A circuit configuration includes a first input for inputting a first set of digital input data, an output for outputting digital output data, and a control input for receiving a control signal. At least two register units are provided and the circuit configuration is designed to write, as a function of the control signal, into a first register unit optionally at least a part of the first set of input data or of the second set of digital input data and to write into a second register unit optionally at least a part of the first set of input data or of the second set of input data.

Circuit configuration for selecting and outputting digital input data and operating method for same

A method for data transmission between a sensor and an electronic control and/or regulating unit (ECU), the transmitted sensor data (x, . . . , x) and the sensor being secured against a manipulation. The system provides a particularly simple, but very secure method for manipulation protection, the sensor data (x, . . . , x) being transmitted via a first logical data transmission channel at a first data transmission rate, and security data (MAC; CMAC) for securing the transmitted sensor data and/or the sensor being transmitted via a second logical data transmission channel at a second data transmission rate from the sensor to the ECU. At least once at the beginning of a data transmission session, a session key is transmitted from the ECU to the sensor via a third logical data transmission channel and received by the latter, the session key being used at least for the ongoing session to generate the security data.

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Reutlingen, Germany

Matthew Lewis