Mikhailov A.A.Kazan National Research Technical University named after A.N. Tupolev – KAI (KNRTU-KAI), Kazan, Republic of Tatarstan, Russian Federation Alex-0995@mail.ru ORCID id: not available
Tumbinskaya M.V.Kazan National Research Technical University named after A.N. Tupolev – KAI (KNRTU-KAI), Kazan, Republic of Tatarstan, Russian Federation tumbinskaya@inbox.ru ORCID id: not available
Subject This article deals with the development of a modified method of the LTE authentication protocol EPS-AKA algorithm design using the query vector in the fourth generation of LTE communication standards. Objectives The article aims to explore the possibility of solving the problem of obtaining international mobile subscriber identity (IMSI) in the clear during EPS-AKA authentication in the LTE network using Public Key Infrastructure (PKI). Methods For the study, we used the methods of mathematical and hardware modeling. Results We offer a modified method to develop the LTE authentication protocol EPS-AKA algorithm using the query vector based on the correlation of UE authentication requests with the international mobile equipment identity (IMEI), which is stored in a special security vector (SV) for the latest authentication requests received and stored in the HSS. Thus, the HSS can be protected from DoS attacks, which are not eliminated by the conventional protection methods included in the LTE standard.
Keywords: EPS-AKA, LTE, MME, E-UTRAN, mobile security, authentication
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