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Subject: Re: [saml-dev] Seeking clarity on the Conformance specification,Table 2

On 6/20/06 7:57 AM, "Costello, Roger L." <costello@mitre.org> wrote:

> Hi Folks,
> I am not clear on what is being stated in Table 2 of the Conformance
> specification.
> Here is a snippet of Table 2:
> Feature                               |     IdP      |   SP
> ---------------------------------------------------------
> Web SSO, <AuthnRequest>,  |   MUST   |   MUST
> HTTP redirect
> Question: how do I interpret this?  Is it saying,
> łTo be SAML 2.0 compliant, an Identity Provider (IdP) and a Service Provider
> (SP) MUST implement the Web Browser Single Sign-on (SSO) profile; a SP MUST be
> able to issue an Authentication Request (<AuthnRequest>) using the HTTP
> redirect mechanism.˛

Yes, basically.  Of course, this is sort of meaningless without the other
piece, which is the next row of Table 2:  Web SSO <Response>, HTTP POST.

Together, these two rows mean that the SP must:

- issue an AuthnRequest over the HTTP redirect binding

- perform all processing steps associated with the <Response> to achieve SSO

And an IDP must be able to

- consume the AuthnRequest and perform all the required processing steps.

- Issue a proper <Response> (or an error) according to the processing rules,
to achieve SSO.

If you want to see a greatly expanded discussion of the conformance
requirements, you could look at the SAML 2.0 Interoperability Testing
Procedures (currently at v1 but soon to be updated to v2) at


second link on the right.


Eric  Tiffany             |  eric@projectliberty.org
Interop Tech  Lead        |  +1 413-458-3743
Liberty Alliance          |  +1 413-627-1778 mobile

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