What is the difference between Azure ACS and Azure AD B2C?

Question

I need to add a custom identity provider in Azure B2C and don’t know how to do it.

I know that this is possible in Azure ACS, but I’m not sure that B2C is just a “more beautiful” layer on top of ACS.

Can someone clarify the difference and perhaps tell me how I can create my own IDP for a social network that is not listed in B2C?

Answer 1

Now all authentication processes are centralized in AAD , the remaining parameters temporarily remain as compatibility services, but in the future they will be deleted.

ACS carries over to the entire AAD function.

2015 Azure Active Directory article is the future of ACS

As you can see in the current offers for azure products, there is no link to ACS, especially since all the ACS materials that were made through the old Silverlight Azure portal, and a few things on the "older" site manage.windowsazure.com.

No links to ACS in the new

http://portal.azure.com

B2C focuses on fully valid standards such as OAuth, and an authentication model is created to be embraced by website, mobile, and desktop developers.

Azure Active Directory B2C

As you can see the AAD B2C is still in the preview , this can be a problem, however, successful cases such as Real Madrid can give you the confidence to use the technology even in its early states.

Answer 2

The ability to add custom identity providers is now in an open view using the Identity Experience Framework. You can add custom policies for integration with any SAML, OIDC, or OAuth provider, so you can effectively replace ACS with AAD B2C.

Overview of B2C User Policies

Answer 3

You cannot do this, he is on the wish list , and the team allegedly looks at him.

Please note that Azure AD B2C is no longer in preview since it left the beta at the end of July, but even this does not allow you to bring your own IdP, you can only use your social IdP. An alternative is to create your own Auth middleware using IdentityServer or a similar solution.