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Interoperability PKA with 8192-bit private key #9246

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cyberduck opened this issue Feb 5, 2016 · 2 comments
Closed

Interoperability PKA with 8192-bit private key #9246

cyberduck opened this issue Feb 5, 2016 · 2 comments
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@cyberduck
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882ee41 created the issue

Dear developers,

Yes, I know this might sound absurd, but since PuTTY is handling 8192-bit private key very well, I think it would be good to see Cyberduck also support key size of 4096+.

So, here are some details:

I generated a new pair of key using my FreeBSD machine's bundled OpenSSH*: ssh-keygen -trsa -b8192. Then I imported the key into PuTTYgen, saved as PuTTY Private Key format.

Now, PuTTY handles this very well; I can log into both FreeBSD and Debian machines I have. Even logging into each other using OS bundled SSH client was successful. Only Cyberduck is complaining about the key size. (I attached the complaint Cyberduck was quacking.)

I hope to see Cyberduck supporting this soon. :)

  • OpenSSH_6.6.1p1, OpenSSL 1.0.1p-freebsd 9 Jul 2015

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@dkocher commented

As a workaround, keep the file in PEM format and you will be fine.

@cyberduck
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@dkocher commented

In aa7b1a6.

@iterate-ch iterate-ch locked as resolved and limited conversation to collaborators Nov 26, 2021
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