[metrics-team] How to establish identity on converted descriptors
Karsten Loesing
karsten at torproject.org
Tue Jun 21 06:06:54 UTC 2016
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Hi Thomas,
we briefly talked about identifiers yesterday. Mind posting the result?
All the best,
Karsten
On 19/06/16 23:01, tl wrote:
>
>> On 19.06.2016, at 19:30, tl <tl at rat.io> wrote:
>>
>> We were discussing handling of duplicate descriptors during the
>> last metrics-team IRC chat. Thinking about it I became aware that
>> I’m not always sure how to establish the identity of a descriptor
>> in the first place. It’s easy for descriptors that contain
>> fingerprints (relay, relayExtra, bridge, bridgeExtra). For the
>> other descriptors I could imagine that certain timesamps can
>> serve as identifiers. I guess the type information is always
>> needed as a second part to guarentee uniqueness of the
>> identifier.
>>
>> relay type + fingerprint relayExtra type +
>> fingerprint relayVote type + published (or valid-after?)
>> relayCons type + valid-after bridge type +
>> fingerprint bridgeExtra type + fingerprint bridgeStatus type +
>> published torperf type + start tordnsel type +
>> downloaded
>>
>> Can soemone please comment if this makes sense?
>
>
> Okay, I can see for myself that it doesn’t. Relays and bridge
> descriptors additionally need a timestamp to be unique since the
> fingerprint identifies only the router itself, at any point in
> time. OTOH vote descriptors need an authority identifier.
>
> relay type + fingerprint + published relayExtra type +
> fingerprint + published relayVote type + identity + published
> relayConsens type + valid-after bridge type + fingerprint +
> published bridgeExtra type + fingerprint + published bridgeStatus
> type + published torperf type + start tordnsel type +
> downloaded
>
> That’s better but is it good enough? BridgeStatus, Torperf and
> Tordnsel still seem underspecified to me.
>
>
> oma _______________________________________________ metrics-team
> mailing list metrics-team at lists.torproject.org
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>
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