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Re: Verifying WebID fails

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Wed, 28 Jun 2017 18:02:18 -0400
To: public-webid@w3.org
Message-ID: <90fee7c7-13bd-1d78-280e-2128a48003e9@openlinksw.com>
On 6/28/17 5:38 PM, Kingsley Idehen wrote:
> On 6/28/17 12:01 PM, Martynas Jusevičius wrote:
>> Kingsley,
>> I am speaking about the WebID-TLS spec, more specifically
>> Authentication sequence and Verifying the WebID:
>> https://www.w3.org/2005/Incubator/webid/spec/tls/#the-webid-authentication-protocol
>> <https://www.w3.org/2005/Incubator/webid/spec/tls/#the-webid-authentication-protocol>
>> None of the sections (see below) on WebID verification address the
>> failure to verify the public key, and I think a robust protocol
>> should. Am I missing something?
> Why is this important if the protocol is matching two public keys across:
> 1) Local Key Store
> 2) WebID-Profile Document.
> Remember, WebID-TLS is an additional lookup applied  TLS-Handshake. 
> The "TLS" part handles all matters required for successful
> TLS-handshake. The "WebID" part boils down to locating Public Key in
> WebID-Profile doc by dereferencing WebID in X.509 Cert SAN (the very
> X.509 Cert used during TLS CCA to provide data for handshake).
> Bottom line, if there is something wrong authentication fails. The
> entire process is about verify the claims associated with a WebID. 

To be clear, it is claims (mirrored between X.509 and WebID-Profile doc)
and "proof of work" (ability to place claims in WebID-Profile Document)
. This process passes or fails.

Once identify claims are verified the system in use could then progress
to resource access control evaluation, but that isn't part of WebID-TLS,
that's where WebACL comes into play.


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Received on Wednesday, 28 June 2017 22:02:46 UTC

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