PuTTY is outdated

Currently this should be 0.78, released on 2022-10-29.

We will definitely update WinSCP to PuTTY 0.78.
Is there any specific new feature of PuTTY 0.78 you are after?

Hi Martin,

indeed there are exciting changes! I have tried the new PuTTY with Kinetic Kudo and OpenSSH 9.x for the new "sntrup761x25519-sha512@openssh.com". It is a crypto nerd's fantasy, but I am excited to have it deployed soon in WinSCP too!

Many good important changes:
Support for OpenSSH certificates, for both user authentication keys and host keys.
Support for NTRU Prime post-quantum key exchange,
Support for AES-GCM (in the OpenSSH style rather than RFC 5647).

I know there won't be a quantum computer that can break >2048 bit key exchanges in the near future, but libraries/dependencies being up to date is good.

Just really excited ;)
Thanks for your work as always, sir!

Looking forward to the update.

For my use case, I actually need the added, below feature, to actually be able to log in:

Support for OpenSSH certificates, for both user authentication keys and host keys.

As well, would /keygen be updated to do conversions including adding an OpenSSH certificate (like I can now do in PuTTYgen), so that the work can be scripted?

Thanks!

NTRU and AES-GCM should come with update to PuTTY 0.78 without more effort.
The OpenSSH certificates might need further effort on WinSCP side. The /keygen part will definitely need some effort. We will see.
Support for OpenSSH certificates is tracked here:
Bug 1873 – Support for OpenSSH certificates for user authentication

Thank you!

Thanks from me as well!

Are you using the certificates for user authentication only? Or also for verifying the hosts?

@martin: I'm being told only for user authentication.

Thanks

@dr1818: Thanks for your feedback.

Hello,
any outlook as to when 6.0 will be released?

Thx!

@hlfritz: Probably within two weeks.