THE CRYPTOSYSTEM CONSTRUCTION ON THE POLYGONAL CODES BASIS

The polygonal block nonlinear codes are defined in the article. The methods of certain polygonal codes constructing is considered and effective universal recursive method of codes of great length constructing on the basis of Steiner systems for cryptosystems with error correction is proposed. Cryptosystem with correction code based on this code is developed. The advantages of this cryptosystem are speed encryption and decryption, as well as the ability to change the code quickly without encryption and decryption tables changing.