FIELD: networks.
SUBSTANCE: invention relates to networks and methods for data protection of wireless transceiver end devices connected in a network by means of wireless communication. The claimed method consists in the fact that when the end device generates messages, each of which includes the end device identifier, useful information and imitation insert, each message is encrypted using a gamma or block cipher. Each message sent to the network server includes a part of the result of the encryption of the identifier, a part of the result of generating an imitation insert and encrypted useful information. The server carries out a search and comparison of information from a part of the result of encryption of the identifier of the processed message with the same information on the network server and, if the comparison is successful, further comparison of a part of the result of generating an imitation insert for several different values of at least one counter of the end device with a successfully matched part of the result of encryption of the identifier. With positive processing on the network server, the useful information is decrypted and the decrypted useful information and the decrypted open identifier are sent to the user.
EFFECT: ensuring possibility of using addresses of end devices of any length, eliminating collisions between transmitted data packets when transmitting messages by end devices, increasing reliability of message transmission and their security.
7 cl, 2 dwg
