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DOI: 10.18413/2518-1092-2022-8-1-0-3

ANALYSIS OF SYMMETRIC ENCRYPTION METHODS, PROBLEMS AND WAYS OF THEIR POSSIBLE SOLUTION

Person needs to constantly communicate, and he does this on the street with friends, acquaintances, making phone calls, chatting in instant messengers, writing letters to the post office. All this is information that is transmitted over transmission channels and can be subject to various kinds of theft and risk situations that must be properly protected, which is what information security does. In the era of quantum computers, of course, basic ciphers are being questioned, but no one forbids combining different ciphers in order to protect themselves as much as possible. The paper will present encryption methods, analyze several of them, namely symmetric text encryption, identify their main problems and propose ways to eliminate them.

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