Bar-ilan University

Moshe Avital

Alexander Fish

Osnat Keren

Itamar Levy

Hadar Dagan

A randomization element includes a logic input for inputting a logic signal, a logic output for outputting the input logic signal at a delay and a randomization element. The randomization elements introduces the delay between said logic input and said logic output and operates selectably in static mode and in dynamic mode in accordance with a mode control signal. A logic circuit may be formed with randomization elements interspersed amongst the logic gates, to obtain protection against side channel attacks by inputting a selected control sequence into the randomization elements.

Randomized logic against side channel attacks

An RMTL gate includes at least two logic blocks, where at least one of the logic blocks operates in multiple modes. The respective logic block mode(s) are selected by a topology selector which applies mode control signals to the logic blocks in order to obtain a selected topology for logic circuit operation. RMTL logic gates may be cascaded and/or interconnected to form an RMTL logic circuit with multiple logic gates which may operate with dynamically varying topologies. Use of random, semi-random or specified control sequences may protect the logic circuit against security attacks.

Growing community of inventors

Jerusalem, Israel

Moshe Avital