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List:       openssh-bugs
Subject:    [Bug 2895] ecdsa key invalid format after upgrade
From:       bugzilla-daemon () bugzilla ! mindrot ! org
Date:       2018-08-15 6:52:51
Message-ID: bug-2895-705-TMGMBua8di () https ! bugzilla ! mindrot ! org/
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https://bugzilla.mindrot.org/show_bug.cgi?id=2895

Jakub Jelen <jjelen@redhat.com> changed:

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                 CC|                            |jjelen@redhat.com

--- Comment #4 from Jakub Jelen <jjelen@redhat.com> ---
Created attachment 3169
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3169&action=edit
ECDSA private key reproducing a problem

Please, see the analysis in the redhat bugzilla. It already answers
most of the questions and points what is different in the old key and a
new key (format: named curve x raw group parameters) and why is it
failing (ec group comparison). I can reproduce the same behavior so I
attached the testing private key.

I suspect this is some change in OpenSSL, how they handle EC group
comparison, but I did not have time to investigate it further. It might
even work for you with LibreSSL.

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