[tor-bugs] #22964 [Core Tor/Tor]: Clarify comment about all tor data being encrypted

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#22964: Clarify comment about all tor data being encrypted
------------------------------+--------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.2.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  comment
Actual Points:                |  Parent ID:  #22961
       Points:                |   Reviewer:
      Sponsor:                |
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 This isn't quite accurate:
 {{{
   /* Don't actually allow compression; it uses ram and time, but the data
    * we transmit is all encrypted anyway. */
 }}}

 The following "data" isn't encrypted:
 * cell headers
 * non-relay cell types

 I suggest:

 {{{
   /* Don't actually allow compression; it uses ram and time, but the
    * circuit data we transmit is encrypted anyway. */
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22964>
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