If I understand your question correctly, this should be the approach you should be following. Force.com sites do support SSO using SAML.
You need to provide the following info for your identity provider
The following must be added as attributes to the SAML assertion sent
from your identity provider:...
As I noted in a comment above, if your organization is set up to use SAML as the means of authentication (which requires a MySalesforce URL), then the SDK should redirect authentication to the SAML authentication page in question rather than the OAuth page. This does require your application to reference the MySalesforce URL for authentication rather than ...
Refer the above article and thats the one of the best articles i have read on this .
You will first need to raise a case with salesforce to enable delegated authentication for your org.
Just wanted to note that I've managed to acquire a response from Salesforce's support. They confirmed that in their current implementation of OpenID Connect client it will reject self-signed certificates provided by IdPs it connects to. They promised to present the feature to allow such certificates for voting on their forums, and if supported by other users ...
Kerberos is a networking protocol and is the default protocol used by Windows for authentication when joining a Windows domain to establish trust. I don't think you can run a Windows Domain without also running Kerberos on all of the connected machines. See RFC 3244 and RFC 4757 to learn more about the Microsoft specifications and its uses. Kerberos can also ...
Delegated Authentication is specific to Salesforce only (not industry standard) where external Webservice only returns True and False saying Authentication is complete or not.
However, in SP initiated SSO, IDP may use SAML protocol. Sometime back I had written blog post and Video tutorial on SAML, you may like to check this - http://www.jitendrazaa.com/blog/...
You need to authorize the application for once with the "authorize url". You don't have to make the redirect_uri work.
According to your UseCase (external service first authenticates users and those users will automatically logged in to Salesforce Community).
You need to use Authentication Providers.
An authentication provider lets your users log in to your Salesforce org using their login credentials from an external service provider. Salesforce provides authentication ...
With Delegated Authentication, the user logs in through the normal Salesforce login page, but Salesforce checks with a third-party server for the password. In this case, the user literally has no Salesforce password and cannot log in without the authentication server's permission.
Delegated Authentication Flow
User -----> Salesforce Login
SP and IdP are really SAML-based definitions, but if you wanted to give such a definition to DA, it would be a SP SSO; the user starts from Salesforce, the SP, and presents their credentials through DA to the IdP to complete the login process. However, generally speaking, you wouldn't call DA SAML (which is the Security Assertion Markup Language, a specific ...
Yes, IsSsoEnabled is a profile permission. You can see it in the documentation.
Defaulted on create, Filter, Group, Sort
If true, users assigned to this profile can delegate username and password authentication to a corporate database instead of the user database.
Yes. Salesforce.com does not store check the password for users with Delegated Authentication. The mode of authentication does not matter (e.g. OAuth2 versus API versus Apps). Any attempt to log in must be done through the delegated authentication web service. The first two list items describe what you're looking for:
When a user tries to log in—either ...
Portals can only use federated (SAML-based) authentication.
Enabling SSO for portals
Best practices for implementing SSO
It's quite easy to use SAML-based authentication with Active Directory and Salesforce. Perhaps federated authentication is a better option for you?
There is another way though. You can expose the Apex system methods for customer portal ...