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Re: [saag] Liking Linkability

From: Mo McRoberts <Mo.McRoberts@bbc.co.uk>
Date: Sun, 21 Oct 2012 08:24:08 +0000
To: Ben Laurie <ben@links.org>
CC: Henry Story <henry.story@bblfish.net>, Mouse <mouse@rodents-montreal.org>, "public-philoweb@w3.org" <public-philoweb@w3.org>, "public-identity@w3.org" <public-identity@w3.org>, "saag@ietf.org" <saag@ietf.org>, "public-privacy@w3.org" <public-privacy@w3.org>, Sam Hartman <hartmans-ietf@mit.edu>, "public-webid@w3.org" <public-webid@w3.org>
Message-ID: <A66AA333-283A-4D40-B3BA-DB3AF950252B@bbc.co.uk>

On 18 Oct 2012, at 20:29, Ben Laurie <ben@links.org> wrote:

> I really feel like I am beating a dead horse at this point, but
> perhaps you'll eventually admit it. Your public key links you. Access
> control on the rest of the information is irrelevant. Indeed, access
> control on the public key is irrelevant, since you must reveal it when
> you use the client cert. Incidentally, to observers as well as the
> server you connect to.


Right, but that's the nature of a persistent identifier which is (surely) a prerequisite for auth  assuming one doesn't wish to remain anonymous and have some auth, you could hypothetically avoid the cross-domain linkability issue by having a key-per-site, which could be semi-automated on the client side.

What I can't see is how you can maintain persistence on the server side without something which ultimately boils down to (or otherwise allows the storage of) a persistent identifier.

M.

--
Mo McRoberts - Technical Lead - The Space
0141 422 6036 (Internal: 01-26036) - PGP key CEBCF03E,
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Received on Sunday, 21 October 2012 08:26:09 GMT

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