[tor-dev] "identity digest" and "hash of a router's identity key"

Frank Young pfcodes at gmail.com
Sun Apr 28 10:11:19 UTC 2013

Yes you are right, after decoding that value from base64 and
re-encoding it in base16, it can be used to get the router's
What i'm trying to get is the list of HSDIR responsible for a hidden service.
After calculating the descriptor for the hidden service, i need to
know the identity digest of all the HSDIR in the consensus, so that i
can sort them and get the three which are responsible for the
descriptor id.
I base64 decoded the digest fields of HSDIR in the consensus and
assume those are the identity digest which i can sort.
I'm i correct?

On 4/27/13, Damian Johnson <atagar at torproject.org> wrote:
>> In a consensus, the item after nickname is  base64 encoded "hash of a
>> router's identity key"
>> If this item is base64 decoded, is it the same as the "identity
>> digest" of the router?
> Hi Frank. That field is the relay's fingerprint. Here's the code stem
> uses for parsing that line...
> https://gitweb.torproject.org/stem.git/blob/HEAD:/stem/descriptor/router_status_entry.py#l469
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