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| author | Alexander Færøy <ahf@torproject.org> | 2017-05-03 21:58:18 +0200 |
|---|---|---|
| committer | Alexander Færøy <ahf@torproject.org> | 2017-05-03 21:59:22 +0200 |
| commit | 7c572377db2d25c2f6cd90cad13d6b72d5449436 (patch) | |
| tree | 9ab6d94988b2d2217af601192c3627cc5ac195a6 /proposals/278-directory-compression-scheme-negotiation.txt | |
| parent | a2cd5c6142091f5f46e1820c65c17912a00ee2a9 (diff) | |
| download | torspec-7c572377db2d25c2f6cd90cad13d6b72d5449436.tar.gz torspec-7c572377db2d25c2f6cd90cad13d6b72d5449436.zip | |
Explain the reasoning behind the "x-tor-lzma" name.
Diffstat (limited to 'proposals/278-directory-compression-scheme-negotiation.txt')
| -rw-r--r-- | proposals/278-directory-compression-scheme-negotiation.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/proposals/278-directory-compression-scheme-negotiation.txt b/proposals/278-directory-compression-scheme-negotiation.txt index 2c1ea69..475e4af 100644 --- a/proposals/278-directory-compression-scheme-negotiation.txt +++ b/proposals/278-directory-compression-scheme-negotiation.txt @@ -113,6 +113,13 @@ Target: N/A The "deflate", "gzip", and "identity" compression schemes must be supported by directory servers for backwards compatibility. + We use the name "x-tor-lzma" instead of just "x-lzma" because we + require a defined upper bound of memory usage that is available for + decompression of LZMA compressed data. The upper bound for memory + available for LZMA decompression is defined as 16 MB. This currently + means that will not use the LZMA compression scheme with a "preset" + value higher than 6. + Additionally, when a client, that supports this proposals, makes a request to a directory document with the ".z"-suffix it must send an ordered set of supported compression schemes where the last elements |