In this paper we propose a method for the synthesis of the basic operations of cryptographic transformations based on the substitution of one or more elementary functions with preservation of information content. Also described in detail the stages of the synthesis three-digit operations of cryptographic transformation based on the operation of addition modulo two.
cryptographic transformation, basic operation, encoding, decoding
"Metod syntezu operatsii kryptohrafichnoho peretvorennia na osnovi dodavannia za modulem dva" ,
Information Processing Systems,