This study presents an efficient exponent architecture for public-key cryptosystems using Montgomery multiplication … based on programmable cellular automata (PCA). Multiplication is the key operation in implementing circuits for cryptosystem … multiplications. Efficient multiplication algorithm and simple architecture are the key for implementing exponentiation. Thus we …

multiplication coefficients divided by the neutron lifetime. The phenomenological nonlinear model, restricting the exponential growth … is also shown, that at very large times the regime of multiplication is replaced by the ordinary diffusion regime. …