An enhanced symmetric-key based 5G-AKA protocol

5G technology is called to support the next generation of wireless communications and realize “Internet Everything” through its mMTC (massive Machine-Type-Communications) service. The recently standardized 5G-AKA protocol intended deal with security privacy issues detected in earlier generations. Nevertheless, several shortcomings have been reported, including a possibly excessive computational complexity for many IoT devices. To address these, promising lightweight 2-pass authentication key agreement (AKA) mobile has proposed by Braeken. Compared protocol, this does not require use public encryption. This paper analyzes claims Braeken’s shows that it provide full unlinkability, but only session (still) subject Linkability AKA Failure Messages (LFM) attacks. We propose solutions such problems prove symmetric-key based protocols cannot offer higher protection levels without compromising availability. then describe an enhanced version addresses these vulnerabilities supports forward secrecy, which desirable feature low-cost