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| author | Nick Mathewson <nickm@torproject.org> | 2019-01-14 14:07:11 -0500 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2019-01-14 14:07:11 -0500 |
| commit | 81aeca7501f89e9889d592ef2217b265c41bf2df (patch) | |
| tree | 5d2071b729d5f5b8b4d4a79cbc0a6e87f975a200 /dir-spec.txt | |
| parent | 139b5d05b038aec9ea2ba91b9fc371119a7e8fd1 (diff) | |
| parent | c2cc4dea16a3b90816e08380da0c7a8de54903e4 (diff) | |
| download | torspec-81aeca7501f89e9889d592ef2217b265c41bf2df.tar.gz torspec-81aeca7501f89e9889d592ef2217b265c41bf2df.zip | |
Merge remote-tracking branch 'tor-github/pr/44'
Diffstat (limited to 'dir-spec.txt')
| -rw-r--r-- | dir-spec.txt | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/dir-spec.txt b/dir-spec.txt index 39be9df..685a62e 100644 --- a/dir-spec.txt +++ b/dir-spec.txt @@ -706,17 +706,23 @@ [Versions before 0.2.0.1-alpha don't recognize this] - "extra-info-digest" SP sha1digest [SP sha256-digest] NL + "extra-info-digest" SP sha1-digest [SP sha256-digest] NL [At most once] - "sha1-digest" is a hex-encoded digest (using upper-case characters) of - the router's extra-info document, as signed in the router's extra-info - (that is, not including the signature). (If this field is absent, the - router is not uploading a corresponding extra-info document.) + "sha1-digest" is a hex-encoded SHA1 digest (using upper-case characters) + of the router's extra-info document, as signed in the router's + extra-info (that is, not including the signature). (If this field is + absent, the router is not uploading a corresponding extra-info + document.) "sha256-digest" is a base64-encoded SHA256 digest of the extra-info - document, computed over the same data. + document. Unlike the "sha1-digest", this digest is calculated over the + entire document, including the signature. This difference is due to + a long-lived bug in the tor implementation that it would be difficult + to roll out an incremental fix for, not a design choice. Future digest + algorithms specified should not include the signature in the data used + to compute the digest. [Versions before 0.2.7.2-alpha did not include a SHA256 digest.] [Versions before 0.2.0.1-alpha don't recognize this field at all.] |