[Bug 2991] Not supports hmac-md5 ciphering technique

bugzilla-daemon at bugzilla.mindrot.org bugzilla-daemon at bugzilla.mindrot.org
Tue Feb 18 20:19:27 AEDT 2020


https://bugzilla.mindrot.org/show_bug.cgi?id=2991

--- Comment #24 from Darren Tucker <dtucker at dtucker.net> ---
(In reply to Karthik Adiga from comment #22)
> Thank you Darren. Is there any way it can still work with 8.0's
> generated keys to be worked for 5.3p1's sshd? Why exactly it is
> failing?

A version of ssh-keygen that old would have generated the keys using
legacy PEM encoding.  Recent versions use a different (stronger) format
which the older sshd would not understand.

You can cause a current ssh-keygen to generate PEM format keys using
the "-m PEM" option, which can also be used with -p flag to convert an
existing key to PEM.

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