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[tor-commits] [tor/master] Update the protocol versions recommendations to remove LinkAuth=1



commit 14be9cba4ee1c3ec96638f4870112848efad2503
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Thu Aug 23 11:24:39 2018 -0400

    Update the protocol versions recommendations to remove LinkAuth=1
    
    LinkAuth method 1 is the one where we pull the TLS master secrets
    out of the OpenSSL data structures and authenticate them with
    RSA. Right now we list method 1 as required for clients and relays.
    That's a problem, since we can't reasonably support it with NSS. So
    let's remove it as a requirement and a recommendation.
    
    As for method 3: I'd like to recommend it it, but that would make
    0.2.9 start warning.  Let's not do that till at least some time
    after 0.3.5 (the next LTS) is stable.
    
    Closes ticket 27286
---
 changes/27286    | 4 ++++
 src/or/dirserv.c | 8 ++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/changes/27286 b/changes/27286
new file mode 100644
index 000000000..5f5f7a4ae
--- /dev/null
+++ b/changes/27286
@@ -0,0 +1,4 @@
+  o Minor features (directory authorities):
+    - Authorities no longer vote to make the subprotocol version "LinkAuth=1"
+      a requirement: it is unsupportable with NSS, and hasn't been needed
+      since Tor 0.3.0.1-alpha. Closes ticket 27286.
diff --git a/src/or/dirserv.c b/src/or/dirserv.c
index 08557a6a1..a1ccf03e9 100644
--- a/src/or/dirserv.c
+++ b/src/or/dirserv.c
@@ -3082,16 +3082,16 @@ dirserv_generate_networkstatus_vote_obj(crypto_pk_t *private_key,
   /* These are hardwired, to avoid disaster. */
   v3_out->recommended_relay_protocols =
     tor_strdup("Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 "
-               "Link=4 LinkAuth=1 Microdesc=1-2 Relay=2");
+               "Link=4 Microdesc=1-2 Relay=2");
   v3_out->recommended_client_protocols =
     tor_strdup("Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 "
-               "Link=4 LinkAuth=1 Microdesc=1-2 Relay=2");
+               "Link=4 Microdesc=1-2 Relay=2");
   v3_out->required_client_protocols =
     tor_strdup("Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 "
-               "Link=4 LinkAuth=1 Microdesc=1-2 Relay=2");
+               "Link=4 Microdesc=1-2 Relay=2");
   v3_out->required_relay_protocols =
     tor_strdup("Cons=1 Desc=1 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 "
-               "Link=3-4 LinkAuth=1 Microdesc=1 Relay=1-2");
+               "Link=3-4 Microdesc=1 Relay=1-2");
 
   /* We are not allowed to vote to require anything we don't have. */
   tor_assert(protover_all_supported(v3_out->required_relay_protocols, NULL));



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