Re: [rtcweb] IdP and universal trust

Bernard Aboba <bernard_aboba@hotmail.com> Thu, 29 March 2012 14:02 UTC

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Date: Thu, 29 Mar 2012 16:03:20 +0200
To: Martin Thomson <martin.thomson@gmail.com>
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Cc: Randell Jesup <randell-ietf@jesup.org>, "<rtcweb@ietf.org>" <rtcweb@ietf.org>
Subject: Re: [rtcweb] IdP and universal trust
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While they would be perceived as different with first party IdP, a signed assertion is still meaningless without some proof that the E.164 number is actually owned by the domain making the assertion. 

On Mar 29, 2012, at 15:30, "Martin Thomson" <martin.thomson@gmail.com> wrote:

> On 29 March 2012 14:46, Bernard Aboba <bernard_aboba@hotmail.com> wrote:
>>  For example, +14255551212@example.com is equivalent to +14255551212@eviltwin.example.net
> 
> Actually, if third party assertions were prohibited, these would be
> considered different, though I suspect that a user would have some
> difficulty making the distinction.
> 
> But I take your point.