I am building a website. I want to use my university's account to log in (university's accounts only),
all students have a Microsoft 365 account under the organization of the university, the format is like xxx@usf.edu.
I just need to implement the authentication, if the Microsoft 365 account is correct, it will be allowed to log into the website.
I wonder which section should I look into to study how to do it? is it something related to the Microsoft graph? is it B2B or B2C? or is it any particular API I will need?