Ihp Gmbh-innovations for High Performance Microelectronics/leibniz-institut Fur Innovative Mikroelektronik

Zoya Dyka

Peter Langendorfer

Peter Langendörfer

Ievgen Kabin

Dan Klann

A device for multiplying two bit sequences has a controller that selects and activates exactly one multiplier unit from a plurality of parallel multiplier units, according to a random signal. A partial multiplier unit shared by all the multiplier units receives and multiplies operands formed by the respectively activated multiplier unit. Each multiplier unit implements a different multiplication method with a respective selector unit that selects segments of the bit sequences to be multiplied, in accordance with a selection plan adapted to the respective multiplication method, to form operands from one or more segments and outputs the operands. The respective accumulation unit receives step by step partial products from the partial multiplier unit, accumulates the partial products in accordance with an accumulation plan adapted to the implemented multiplication method and matching the selection plan, and outputs the calculated product of after accumulation has been completed.

Device and method for multiplication for impeding side-channel attacks

A semiconductor device, in particular an integrated circuit with protection against side channel attacks, in particular imaging- and probing-based attacks, EMA and reverse engineering, in which a metallic conductive layer of a first () and/or a second potential supply line () are each connected directly and individually to all the circuit components via respective individual conductor path structures (V, V).

Growing community of inventors

Frankfurt-am-Main, Germany

Zoya Dyka