[tor-bugs] #18221 [Tor]: Validate our DH parameters to prevent socat-type fails.

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#18221: Validate our DH parameters to prevent socat-type fails.
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 Reporter:  yawning          |          Owner:
     Type:  enhancement      |         Status:  needs_review
 Priority:  Medium           |      Milestone:  Tor: 0.2.8.x-final
Component:  Tor              |        Version:  Tor: unspecified
 Severity:  Normal           |     Resolution:
 Keywords:  tor-core crypto  |  Actual Points:
Parent ID:                   |         Points:
  Sponsor:                   |
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Comment (by bugzilla):

 Replying to yawning:
 > That requires breaking TLS
 Of course. MITM FREAK attack and others here:
 https://en.wikipedia.org/wiki/Transport_Layer_Security
 > you lose regardless of what cipher suite you're using.
 If weak suites are disabled, everything will be fine.
 > require a quantum computer to break.
 Using NSA resources for several years adversary can achieve this without
 it.
 > Anyway, this is orthogonal to the ticket.

 >Validate our DH parameters

 Key length is the main parameter ;)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18221#comment:10>
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