[tor-commits] [torspec/master] rend-v3: single onion services retry intro and rend with 3-hop paths

[teor@xxxxxxxxxxxxxx]

commit f29d2250407de7bf63424abae413f62f97e4f219
Author: teor <teor@xxxxxxxxxxxxxx>
Date:   Fri Aug 23 15:27:38 2019 +1000

    rend-v3: single onion services retry intro and rend with 3-hop paths
    
    Spec for 23507 and 23818.
---
 rend-spec-v3.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/rend-spec-v3.txt b/rend-spec-v3.txt
index 141cfa0..b401134 100644
--- a/rend-spec-v3.txt
+++ b/rend-spec-v3.txt
@@ -1477,6 +1477,13 @@ Table of contents:
    First, a hidden service host builds an anonymous circuit to a Tor
    node and registers that circuit as an introduction point.
 
+   Single Onion Services attempt to build a non-anonymous single-hop circuit,
+   but use an anonymous 3-hop circuit if:
+     * the intro point is on an address that is configured as unreachable via
+       a direct connection, or
+     * the initial attempt to connect to the intro point over a single-hop
+       circuit fails, and they are retrying the intro point connection.
+
         [After 'First' and before 'Second', the hidden service publishes its
         introduction points and associated keys, and the client fetches
         them as described in section [HSDIR] above.]
@@ -1912,6 +1919,13 @@ Table of contents:
    this has occurred, the relay forwards the contents of the RENDEZVOUS
    cell to the client, and joins the two circuits together.
 
+   Single Onion Services attempt to build a non-anonymous single-hop circuit,
+   but use an anonymous 3-hop circuit if:
+     * the rend point is on an address that is configured as unreachable via
+       a direct connection, or
+     * the initial attempt to connect to the rend point over a single-hop
+       circuit fails, and they are retrying the rend point connection.
+
 4.1. Establishing a rendezvous point [EST_REND_POINT]
 
    The client sends the rendezvous point a RELAY_COMMAND_ESTABLISH_RENDEZVOUS



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