[tor-bugs] #16034 [Tor]: Drop support for OpenSSL < 1.0

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#16034: Drop support for OpenSSL < 1.0
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     Reporter:  nickm        |      Owner:
         Type:  enhancement  |     Status:  needs_review
     Priority:  normal       |  Milestone:  Tor: 0.2.7.x-final
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-client tor-relay tls
Actual Points:               |  Parent ID:
       Points:               |
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Comment (by yawning):

 `src/common/aes.c` can use some minor cleanup as well (we always should at
 least try to use OpenSSL's CTR implementation).

 I'm strongly tempted to say that `OPENSSL_NO_EC` should be a build time
 error as well, but that's probably something for a separate ticket.
 Apparently, even Fedora has some ECC support now (though from what I
 understand only secp384r1, secp512r1, and prime256v1, maybe that's enough?
 I guess not supporting crippled system OpenSSL is fine regardless).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16034#comment:4>
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