[tor-bugs] #31820 [Core Tor/Tor]: Drop support for OpenSSL < 1.1.1

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#31820: Drop support for OpenSSL < 1.1.1
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     Reporter:  nickm         |      Owner:  (none)
         Type:  task          |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.4.3.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
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 As of 1 January 2020, there will be no supported OpenSSL version earlier
 than version 1.1.1.  (See
 https://www.openssl.org/policies/releasestrat.html)

 We can clean up our code by dropping backward-compatibility support for
 earlier versions.

 As we do this, we should test with supported versions of LibreSSL as well,
 since we try to support that too.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31820>
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