[tor-commits] [torspec/master] Create xxx-tor-relay-well-known-uri-rfc8615.md

[nickm@xxxxxxxxxxxxxx]

commit f5abfb7914adca80783e1b6edbd7b02aecf1b0aa
Author: nusenu <nusenu-github@xxxxxxxxxx>
Date:   Fri Aug 14 10:04:18 2020 +0000

    Create xxx-tor-relay-well-known-uri-rfc8615.md
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+```
+Filename: xxx-tor-relay-well-known-uri-rfc8615.md
+Title: The "tor-relay" Well-Known Resource Identifier 
+Author: nusenu
+Created: 14 August 2020
+Status: Open
+```
+
+This is a specification for a well-known registry submission according to [RFC8615](https://tools.ietf.org/html/rfc8615)
+
+# The "tor-relay" Well-Known Resource Identifier
+
+This resource identifier is used for the the verification of [Tor](https://www.torproject.org/) relay contact information 
+(more specifically the [operatorurl](https://nusenu.github.io/ContactInfo-Information-Sharing-Specification/#operatorurl)).
+It can also be used for autodiscovery of Tor relays run by a given entity, if the entity domain is known.
+It solves the issue that Tor relay contact information is an unidirectional and unverified claim by nature.
+This well-known URI aims to allow the verification of the unidirectional claim.
+It aims to reduce the risk of impersonation attacks, where a Tor relay claims to be operated by a certain entity, but actually isn't.
+The automated verification will also support the [visualization of relay groups](https://gitlab.torproject.org/tpo/metrics/relay-search/-/issues/40001).
+
+* An initially (unverified) Tor relay contact information might claim to be related to an
+organization by pointing to its website: Tor relay contact information field -> website
+* The "tor-relay" URI allows for the verification of that claim by fetching the files containing Tor relay ID(s) under the specified URI, 
+because attackers can not easily place these files at the given location.
+
+* By publishing Tor relay IDs under this URI the website operator claims to operate these relays.
+The verification of listed Tor relay IDs only succeeds if the claim can be verified bidirectionally (website -> relay and relay -> website).
+
+* This URI is not related to Tor bridges or Tor onion services.
+
+* The URL MUST be HTTPS and use a valid TLS certificate from a generally trusted root CA. Plain HTTP MUST not be used.
+
+* The URL MUST be accessible by robots (no CAPTCHAs).
+
+## /.well-known/tor-relay/rsa-fingerprint.txt
+
+* The file contains one or more Tor relay RSA SHA1 fingerprints operated by the entity in control of this website.
+* Each line contains one fingerprint.
+* The file may contain comments (starting with #).
+* Non-comment lines must be exactly 40 characters long and consist of the following characters [a-fA-F0-9].
+* Fingerprints are not case-sensitive.
+* Each fingerprint MUST appear at most once.
+* The file MUST not be larger than one MByte.
+* The file MUST NOT contain fingerprints of Tor bridges (or hashes of bridge fingerprints).
+* The content MUST be a media type of "text/plain".
+
+Example file content:
+
+```
+# we operate these Tor relays
+A234567890123456789012345678901234567ABC
+B234567890123456789012345678901234567890
+```
+The RSA SHA1 relay fingerprint can be found in the file named "fingerprint" located in the Tor data directory on the relay.
+
+
+# Change Controller
+
+tor-dev AT lists.torproject.org
+
+# Related Information
+
+* [https://gitweb.torproject.org/torspec.git/tree/tor-spec.txt](https://gitweb.torproject.org/torspec.git/tree/tor-spec.txt)
+* [https://gitweb.torproject.org/torspec.git/tree/cert-spec.txt](https://gitweb.torproject.org/torspec.git/tree/cert-spec.txt)
+* [https://nusenu.github.io/ContactInfo-Information-Sharing-Specification/#operatorurl](https://nusenu.github.io/ContactInfo-Information-Sharing-Specification/#operatorurl)
+
+
+
+
+
+



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