The paper investigated the sliding encryption primitives and suggested optimization of matrix operations of cryptographic transformations that implement them. It is shown that the elements of round keys are formed by one and the same algorithm for multiple encryption sliding do not lead to an increase in the reliability. The proposed optimization can reduce the hardware complexity of implementing a sliding encryption primitives that are based on matrix operations, by reducing the number of operations of addition modulo 2.
matrix operations, cryptographic transformation, optimization, a sliding encryption
"Optymyzatsyia matrychnыkh operatsyi skolziashcheho shyfrovanyia" [Optimization of matrix operations sliding encryption],
Systems of Arms and Military Equipment,