[Microid] MicroID on Slashdot
Peter Saint-Andre
stpeter at stpeter.im
Sat Aug 30 01:00:07 EDT 2008
Jer, perhaps it would be a good idea for us to blog about this?
Peter Saint-Andre wrote:
> Evan Prodromou wrote:
>> Interesting article on MicroID on Slashdot:
>>
>> http://yro.slashdot.org/article.pl?sid=08/08/28/2241238
>>
>> -Evan
>
> Hi Evan,
>
> Yes the author of that study sent us a copy a while back. We need to add
> some information about this to the security considerations of the
> MicroID specification.
>
> Via a private email to the author, Jer posted as follows:
>
> ******
>
> If someone's email address is the same as or easily guessable from their
> social network name/profile, that's an issue regardless of microid being
> able to confirm it, so I really don't see or care for the spam-angle on
> this (there are much greater perils in this world of ours).
>
> As far as what I would call the PI-angle, the ability to confirm that an
> individuals email matches to a given page/profile, that's kind of what
> the *point* of MicroID is, so yes any site supporting it should have opt
> in/out and suggest that people use private or custom email addresses
> (like name+tag at gmail) if they are concerned about privacy.
>
> For historical sake, one of my initial ideas was to have any supporting
> site provide a private code/pin only to the user that was also hashed,
> and that user can provide that to anyone to independently confirm the
> MicroID... but that's a pretty confusing process for your average user
> to understand, and anyone paranoid can accomplish the same w/ custom
> email addresses anyway.
>
> ******
>
> I'd have to agree with Jer on these points -- it's easier to harvest
> email addresses in other ways, services need to provide an opt-out (or,
> better, opt-in) for MicroID usage, people can overcome many of the
> trivial attacks with throw-away or single-purpose email addresses, and
> services can use obscured (local) URLs to generate the hashes.
>
> Peter
>
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