[OASIS Issue Tracker] Commented: (SECURITY-6) Conflict with core inSSO profile on returning error Responses to SP

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    [ http://tools.oasis-open.org/issues/browse/SECURITY-6?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18226#action_18226 ] 

Bob Sunday  commented on SECURITY-6:
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Suggested text change to 4.1.3.5:
Regardless of the success or failure of the <AuthnRequest>, the identity provider MUST produce and send an HTTP response to the user agent containing a <Response> message under any circumstances within its control. [i.e. the IdP may not logically abandon the <AuthnRequest> under any circumstances in its control]

> Conflict with core in SSO profile on returning error Responses to SP
> --------------------------------------------------------------------
>
>                 Key: SECURITY-6
>                 URL: http://tools.oasis-open.org/issues/browse/SECURITY-6
>             Project: OASIS Security Services (SAML) TC
>          Issue Type: Bug
>          Components: Profiles
>    Affects Versions: Version 2.0
>            Reporter: Scott Cantor
>            Priority: Minor
>             Fix For: 2.0 incorporating Approved Errata
>
>
> Section 3.4.1.4 of Core states that "The responder MUST ultimately reply to an <AuthnRequest> with a <Response> message..." regardless of success or failure.
> Section 4.1.3.5 of Profiles reads "Regardless of the success or failure of the <AuthnRequest>, the identity provider SHOULD produce an HTTP response to the user agent containing a <Response> message...".
> The conflicting language should be clarified, without imposing the impossible requirement for an IdP to guarantee a response, but to encourage implementers to favor responses and/or provide options to ensure that.

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