DEVICES AND METHODS FOR AUTHENTICATING A CLIENT DEVICE Russian patent published in 2020 - IPC G06F21/31 

FIELD: data protection in a network.

SUBSTANCE: invention relates to authentication of a client device in networks. Technical result of the proposed technical solution is achieved by the fact that at the access point the first control word and the first cryptographic control sum for the first control word are received from the client; generating first keys from each stored primary input and at least one stored secondary input, wherein both the stored primary input and at least one stored secondary input are either a second key or a password phrase; checking a first cryptographic checksum using each generated first key; generating a third key and a second cryptographic check sum, using generated first key, which performs test of first cryptographic checksum; and sending a third key and a second cryptographic checksum to the client.

EFFECT: providing access to an access point only for authorized client devices.

12 cl, 4 dwg