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During the COVID-19 pandemic the management of human resources changed dramatically, especially since digitalization grew overwhelmingly overnight and multi-national companies were forced to close office buildings and work remotely. In other words, the IT industry went sky high and the demand for IT specialists increased as everything became automatized. Working from home has increased the demand for specialists and software in every branch of any company and even after COVID-19, people find it difficult to readjust to the lifestyle they were accustomed to before 2020, due to the fact that in the meantime, they have learned to use software that can help them do the same thing from home, but faster and in a more precise way than previous software versions would have allowed. Thus, the hybrid working system is more viable nowadays and even reducing the number of working days per week may soon become possible.

The article presents a detailed analysis of the encryption protocols used in air traffic control systems to ensure the security of communication between aircraft and ground systems. The importance of secure communication in air traffic management is highlighted and encryption protocols such as AES, RSA and ECC are examined within the specific context of air traffic control. Special emphasis is placed on secure communication architecture and cryptographic key management solutions. Challenges and solutions in implementing these protocols in complex environments with high security requirements are also discussed.