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[tor-commits] [torspec] branch main updated: Document missing NL in the middle layer of an HsDesc.
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dgoulet pushed a commit to branch main
in repository torspec.
The following commit(s) were added to refs/heads/main by this push:
new b842f50 Document missing NL in the middle layer of an HsDesc.
new f88f643 Merge branch 'tor-gitlab/mr/109'
b842f50 is described below
commit b842f50c4f952d9baec83395dd782241c20de610
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
AuthorDate: Mon Jan 30 16:46:58 2023 -0500
Document missing NL in the middle layer of an HsDesc.
It looks like C tor doesn't include a final newline in the middle
layer of its onion service descriptors. That made arti reject them
the first time I tried to parse one! Here I document this behavior,
and tell other implementations what to do.
---
rend-spec-v3.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/rend-spec-v3.txt b/rend-spec-v3.txt
index 278c1fa..a4a827a 100644
--- a/rend-spec-v3.txt
+++ b/rend-spec-v3.txt
@@ -1270,6 +1270,13 @@ Table of contents:
discussed in [HS-DESC-SECOND-LAYER] below. The blob is base64 encoded
and enclosed in -----BEGIN MESSAGE---- and ----END MESSAGE---- wrappers.
+
+ Compatibility note: The C Tor implementation does not include a final
+ newline when generating this first-layer-plaintext section; other
+ implementations MUST accept this section even if it is missing its final
+ newline. Other implementations MAY generate this section without a final
+ newline themselves, to avoid being distinguishable from C tor.
+
2.5.1.3. Client behavior [FIRST-LAYER-CLIENT-BEHAVIOR]
The goal of clients at this stage is to decrypt the "encrypted" field as
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