[Openid-specs-ab] Session ID semantics aligned across OpenID Connect front-channel and back-channel logout specs

[Mike Jones]

Good catch, Filip.  I’d replaced “exp” (expiration time) with “iat” (issued at) to align it with the ID Events spec https://tools.ietf.org/html/draft-hunt-idevent-token-03.  But I’d also wanted to ask the working group – do we want to retain an explicit expiration time in the logout token?

                                                       -- Mike

From: Filip [mailto:panva.ip at gmail.com]
Sent: Wednesday, August 24, 2016 1:24 AM
To: Mike Jones <Michael.Jones at microsoft.com>
Cc: openid-specs-ab at lists.openid.net
Subject: Re: [Openid-specs-ab] Session ID semantics aligned across OpenID Connect front-channel and back-channel logout specs

Hello,

reviewing the changes i noticed in Section 2.4 of Backchannel draft 03 the 'exp' claim got removed from Logout Token claims, however section 4 still recomends OPs to use short expiration times for their Logout Tokens. It is not clear enough if 'exp' should be present or not.

Best Regards,
Filip Skokan

On Wed, Aug 24, 2016 at 3:44 AM, Mike Jones via Openid-specs-ab <openid-specs-ab at lists.openid.net<mailto:openid-specs-ab at lists.openid.net>> wrote:
Session ID definitions in the OpenID Connect front-channel and back-channel logout specs have been aligned so that the Session ID definition is now the same in both specs.  The Session ID is scoped to the Issuer in both specs now (whereas it was previously global in scope in the front-channel spec).  This means that the issuer value now needs to be supplied whenever the Session ID is.  This doesn’t change the simple (no-parameter) front-channel logout messages.  The back-channel specification is now also aligned with the ID Event Token specification.

The new specification versions are:

•       http://openid.net/specs/openid-connect-frontchannel-1_0-01.html

•       http://openid.net/specs/openid-connect-backchannel-1_0-03.html

                                                       -- Mike

P.S.  This notice was also posted at http://self-issued.info/?p=1599 and as @selfissued<https://twitter.com/selfissued>.

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