[tor-relays] Mismatched fingerprints

Patrick Scharmer pat at scharmer.net
Tue Jan 20 02:49:31 UTC 2015

Thanks all for your replies… this helps. Makes sense why the non-hashed fingerprint isn’t shown. 

Glad to know I was just misunderstanding the info on Globe/Atlas. I was worried there was something wrong with my node.


> On Jan 19, 2015, at 1:39 AM, Karsten Loesing <karsten at torproject.org> wrote:
> Signed PGP part
> On 18/01/15 19:02, Patrick Scharmer wrote:
> > Hi,
> >
> > I’ve been running a bridge for over a year and noticed recently
> > that the fingerprint shown in ARM (and that actually works when
> > connecting to the bridge) differs from the fingerprint displayed
> > for my bridge on both Atlas and Globe. Any thoughts on why this
> > would happen and how to fix it? I’m assuming the fingerprint
> > published on Atlas & Globe is the same fingerprint that will be
> > distributed by bridges.torproject, is that correct?
> arm displays your bridge's fingerprint, which is also distributed by
> bridges.torproject.org.
> Atlas and Globe show your bridge's *hashed* fingerprint.  The reason
> that they're not showing the (non-hashed) fingerprint is that anyone
> could ask the bridge authority for your bridge's current descriptor if
> they had its (non-hashed) fingerprint, and that would reveal your
> bridge's IP address.  That's why Atlas and Globe hash your fingerprint.
> > Apologies if this is a common question… I’ve only recently joined
> > the mailing list and couldn’t find a way to search the archives
> > other than browsing.
> It's a valid question.  If you have any ideas how to explain it better
> on Atlas or Globe, please open a ticket.  Thanks!
> All the best,
> Karsten
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