Abstract
The fifth chapter deals with the use of hybrid cellular automata for constructing high-quality pseudo-random number generators. A hybrid cellular automaton consists of homogeneous cells and a small number of inhomogeneous cells. Inhomogeneous cells perform a local function that differs from local functions that homogeneous cells realize. The location of inhomogeneous cells and the main cell is chosen in advance. The output of the main cell is the output of a pseudo-random number generator. A hardware implementation of a pseudo-random number generator based on hybrid cellular automata is described. The local function that an inhomogeneous cell realizes is the majority function. The principles of constructing a pseudo-random number generator based on cellular automata with inhomogeneous neighborhoods are described. In such cellular automata, inhomogeneous cells have a neighborhood whose shape differs from that of neighborhoods of homogeneous cells.
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