[Company] Weekly Operations Update 3 and 4/2010

Wolfgang Spraul wolfgang at sharism.cc
Tue Jan 26 23:08:42 EST 2010

Bas & Polossatik,
thanks a lot, sounds like we have a policy:

1. serial/unique numbers must be removable
2. their location and encoding must be documented


On Tue, Jan 26, 2010 at 11:37:23AM +0100, Polossatik wrote:
> On Tue, Jan 26, 2010 at 6:48 AM, Bas Wijnen <wijnen at debian.org> wrote:
> > On Mon, Jan 25, 2010 at 08:29:58PM -0500, Wolfgang Spraul wrote:
> >> ---2 unique IDs and serial numbers
> >> I have a question: How do we, as the Qi Hardware project, feel about unique
> >> numbers and IDs in and on our devices, in general?
> >
> > I think it may be useful to have a globally unique number printed on
> > each unit, so it is possible to hold them apart.  I am opposed to having
> > it in hardware, in a way that is readable by software (like the CPU ID
> > feature of Intel CPUs).  I don't see any reasonable use for this (that
> > can't be easily achieved without it).  It does make it hard to be
> > anonymous, possibly needing kernel hacks to avoid it to be read out.
> >
> >> As a proposal, I would say we try to keep our products as anonymous as
> >> possible.  Use unique IDs only when they provide real value, and
> >> _ALWAYS_ disclose what kind of numbers we have in which place.
> >
> > Good idea.  IMO it's fine to not have it printed on the side as well,
> > but having it there shouldn't be a problem: people know when it's read,
> > and can remove the sticker, should they want to.
> >
> > Thanks,
> > Bas
> I don't see the need for real hardware serials for reason above, but
> what about a "factory/default" writable location for a string?
> Reserve for example an location that can store like a MD5 hash hex
> string or so and that is by default always the same (0000.. or the MD5
> has for 'Ben Nanonote' or so).
> Poeple who want then want to have a unique ID can update this at flash
> time or so with their own ID system..
> However not sure if it there is any advantage to "forsee" a thing like
> this, I assume anyone who would need this will simply add it to their
> own software stack somewhere.
> Regards,
> Gunther
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