Opened 12 years ago

Last modified 7 years ago

#771 closed defect (Not a bug)

TLS no-compression is distinguishable?

Reported by: arma Owned by: nickm
Priority: Low Milestone:
Component: Core Tor/Tor Version: 0.2.1.2-alpha
Severity: Keywords:
Cc: arma Actual Points:
Parent ID: Points:
Reviewer: Sponsor:

Description

We turned off TLS compression in Tor 0.2.1.1-alpha:

  • Never use OpenSSL compression: it wastes RAM and CPU trying to compress cells, which are basically all encrypted, compressed, or both.

but it would appear that this isn't what Firefox and Apache do. How
noticeable is this?

See also http://archives.seul.org/or/talk/Jun-2008/msg00188.html

[Automatically added by flyspray2trac: Operating System: All]

Child Tickets

Change History (3)

comment:1 Changed 11 years ago by nickm

Steven's work indicates that most browsers actually also turn off TLS compression, so we're doing the right thing here.
(Browsers tend to do their compression in the HTTP layer, where it benefits all connections, rather than in TLS, where
it would only benefit HTTPS.)

comment:2 Changed 11 years ago by nickm

flyspray2trac: bug closed.

comment:3 Changed 7 years ago by nickm

Component: Tor ClientTor
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