Adiverse Technologies interview questions

"In a technical interview for a software development role, if you were tasked with designing a system to manage user logins and authentication, how would you approach the architecture, considering security best practices like password hashing and session management, and explain the key components involved?"

The interview went smooth. It was two rounds. He asks us to write the code on paper. There's no asking about yourself everything is about technical. Over experience is very bad though. Saturday is not off