Re: openssh-6.3p1-5.fc20 fails with "EC_KEY_new_by_curve_name failed"

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Corinna Vinschen wrote:
On Nov 11 20:44, Corinna Vinschen wrote:
On Nov 11 12:14, Michael Cronenworth wrote:
Corinna Vinschen wrote:
Does anybody have an idea what the problem could be?

Only ECC NIST Suite B curves were enabled in Fedora packages. If
your keys use a different curve then they wouldn't work.

If you call ssh-keygen -t ecdsa, there's no choice of curves to be made.
An ECDSA openssh key should work on any machine which has ECDSA openssh
keys enabled.  In theory.

If I generate a new ECDSA key with ssh-keygen from openssh-6.3p1-5,
the error message is the same when trying to use that key.

I see OpenSSL was patched a few days ago to enable another curve,
but no update has been pushed yet.

I hope that will fix it.  I'm just a bit puzzled that nobody seems to
have a problem yet.  I can't believe I'm trying to do something unusual.

That change, reenabling the ecdsa-sha2-nistp521 curves, in fact fixes
the problem, since my ECDSA key is actually a 521 bit key.

Policy to use those, or are you in the "more secure" camp on curves vs. legacy public keys?


--
Bill Davidsen <davidsen@xxxxxxx>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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