Cookie based OpenId authentication

Dear All,

We have an asp.net 4.6 and asp.net core application Integrated with Azure AD for the authentication. We are using Cookie based OpenId authentication.

Our Requirement is

1. Entry forms are time taking so user will be entering the data in the from at least 3 - 4 hours then they will be submitting the data.
2. User’s should not be asked to login again until unless they logged out manually in the application.

Please let us know how do we achieve this..

Thanks,

Selvakumar Rathinam