[tor-dev] Revised Relay Descriptor Fields proposal

Fabio Pietrosanti (naif) lists at infosecurity.ch
Fri Jul 4 11:52:17 UTC 2014

This extension could be very useful for the Tor2web project, in order to
easily introduce "directory" functionalities for join/leave/networking
capabilities as per https://github.com/globaleaks/Tor2web-3.0/issues/41 .

That would be *amazing* .

I'm going to bring Italian Grappa with express-shipping as an alchoolic
incentive to anyone that love to make it real! :-)

Fabio Pietrosanti (naif)
HERMES - Center for Transparency and Digital Human Rights
http://logioshermes.org - http://globaleaks.org - http://tor2web.org

Il 7/4/14, 10:22 AM, Virgil Griffith ha scritto:
> Filename: ExtraRelayDescriptorFields.txt
> Title: Adding new X- fields to relay descriptor
> Author: Virgil Griffith, Nick Mathewson
> Created: 2014-06-03
> Status: Open
> 1. Motivation
> We wish to allow developers to build new applications atop relays.
> Towards this
> end, we wish to add the ability for users to specify arbitrary new
> key-value
> entries under the "X-" namespace.
> 2. Proposal
> Allow optional key-value lines in the relay's torrc file.  These lines
> will be
> mirrored in the relay's descriptor which is then published in the
> directory
> consensus.
> For example:
> X-bitcoin 19mP9FKrXqL46Si58pHdhGKow88SUPy1V8
> X-gravatar https://s.gravatar.com/avatar/d27fce46c9ac41a41bb52455ae75701d
> X-favoritequote Be excellent to each other.  Party on dudes!
> X-foo bar
> The value field must be printable ASCII (characters 32-126).  The
> value must
> not under any condition contain a newline.  The key may contain lowercase
> ASCII letters (a-z), digits, underscore, or dash.  In regex, [-_0-9a-z].
> There may need to be a maximum sum length of the X- entries.  This is
> left to the developers.  I propose a maximum sum length of 5 kilobytes.
> To mitigate the chance of a malformed torrc file, I additionally
> propose there
> be a schema for the relay descriptor, and if the relay descriptor fails to
> match the schema it errors to the user to change her torrc file.
> -V
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> tor-dev at lists.torproject.org
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