[Seaside] Is there a safe way to manage users in a Seaside application?

[Baptiste Quidé]

Hello Seaside developers.
First of all let me introduce myself. My name is Baptiste and I am a student in the north of France. I am currently developing a Seaside application and i would like to manage users with a register and login functionalities. I read the chapter "Customizing the Session for Login" in the book Dynamic Development with Seaside. 
However this solution is a little bit basic and I would like to know if a safe way exists in Seaside to manage users (for instance with google account, openID or anything else?).
Best regards.
Baptiste
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