Modification of the algorithm based on the Feistel network by adding an element of randomness into the encryption key

The article revealed the research of methods for constructing block ciphers and its advantages and disadvantages. The modified algorithm based on the Feistel network using Hamming codes and adding an element of randomness into the encryption key was proposed. Analysis of the main parameters of the algorithm in comparison with Feistel network was performed: resistance to cryptanalysis, execution time, increase in the volume of encrypted data. The analysis revealed the stronger resistance to cryptanalysis than the Feistel network, increased execution time and volume of encrypted data. The potential for building block ciphers based on the algorithm was explored.