Research and analysis of modern cryptosystems to protect computer security

This study is an analysis of modern cryptosystems used to ensure security in information technology. The work examines such cryptosystems as AES, RSA and ECC, describes their operating principles, features and degree of security against cryptanalysis and quantum attacks. As a result of the analysis, the advantages and disadvantages of each cryptosystem were identified, as well as recommendations for choosing the most suitable system depending on the specific task and data security requirements. The study may be useful for specialists in the field of information security, as well as for people working in the field of development and implementation of cryptosystems.