[openid-specs-rande] SAML to OIDC mapping specification

Andrea Ceccanti andrea.ceccanti at cnaf.infn.it
Wed Mar 10 14:04:07 UTC 2021


On Wed, Mar 10, 2021 at 01:50:32PM +0100, Niels van Dijk wrote:
> Hi,
> 
> On 10-03-2021 13:29, Etienne Dysli Metref wrote:
> > On 09.03.21 13:07, Ivan Kanakarakis wrote:
> > > I can understand how it is nicer to have a single set of claims, but ..
> > > if there is no reason to define one form and not the other,
> > > and the choice is purely aesthetics or convention,
> > > then why don't we define both forms as equivalent (aliases)
> > > and thus support the current behaviour of all systems?
> > Absolutely! :D This gives every side their favourite naming convention.
> > The specification may become a bit bloated, but I think this would be a
> > cheap price to pay for this.
> 
> I totally dissagree: we will pay dearly for having an ambiguous
> specification and will pay the price in support cost, additional complexity,
> implementors making errors, etc.  Also we will have double work each time we
> want to make a change to the spec. Are we next going to overload all our
> scopes as well?
> A specification should be clear, unambiguous and concise. In this case there
> is no technical need for duplication of claim names, as they serve the exact
> same use case. whatever 1 format we pick it will do the job. This is
> unneeded complexity, which once introduced will take a decade to get rid of
> again, see our may mistakes in SAML.

+1

Andrea
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