Re: Win 11 + Smarcard: SSH public key authentication fails

2024-01-15 Thread Thomas Schneider via Gnupg-users

Hello Werner,

thanks for your reply.

Your understanding is correct:
From Win 11 to any other (Linux) server using SSH.

Actually I installed PuTTY only because of this statement (I found in my 
research):
"[...] The ssh-pageant provides the same kind of functionality to ssh 
but, as opposed to ssh-agent, does speak the PuTTY protocol. This 
enables ssh to speak with the gpg-agent via the ssh-pageant.[...]"


And ssh-pageant is not available for Win 11, but pageant is included in 
PuTTY.


Could you please share some details of your working setup (scripts 
connecting from Win 10/11 to other servers using SSH).


THX
Thomas


Am 15.01.24 um 17:36 schrieb Werner Koch via Gnupg-users:

Hi!

I am not 100% sure whether I did understand you correctly:

You are in Windows 11 and want to use its native OpenSSH client to
connect to some other ssh server.

Why do you need Putty, which has an integrated but different ssh
implementation?

For Putty you had *enable-putty-support* in your gpg-agent.conf.  For
the native client you need to add *enable-w32-openssh-support* to your
gpg-agent.conf.  Better disable the Putty support; I am not sure whether
there are any conflicts.

Take care, alhough me and my scripts ssh into Windows10 and 11 boxes
quite often, the other way around is not that well tested.

For debugging options, please see my other mail from today.


Shalom-Salam,

Werner


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Re: No SSH public key authentication using smartcard

2023-11-25 Thread Thomas Schneider via Gnupg-users

Hello Stephan,

thanks for your reply.

When you say I should modify ~/.ssh/config, where is this file?
On jumphost?

Actually I have a working setup on Windows 10, but here I use another 
terminal emulator: MobaXterm.

And in the settings of MobaXterm I enabled SSH forwarding.

As of now I don't want to continue using MobaXterm on Windows 11, but 
using Windows Terminal.


THX

Am 25.11.23 um 12:30 schrieb Stephan Verbücheln via Gnupg-users:

Coincidentally, I have a similar setup. Fortunately, you do *not* need
Agent Forwarding for authentication via jump hosts.

The entry for your host (in “~/.ssh/config”) for this host should look
something like this:

Host myalias
 HostName myserver.com
 ProxyJump jumpserver.net
 IdentityAgent %d/.gnupg/S.gpg-agent.ssh

There may be some Windows-specific pitfalls. Perhaps you have to be
careful with the line breaks (Unix versus Windows convention) in the
configuration files.

Regards
Stephan

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Subkeys export to Security Token fails: Secret key available.

2020-08-07 Thread Thomas Schneider via Gnupg-users
Hi,
I had to reset my blocked Yubikey.
Then I started with setting up the key again; all worked fine including
"key attributes".

After this I tried to export the PGP keys to the token, however this
fails with error message:
gpg: KEYTOCARD failed: Unusable secret key

I don't understand how to fix this issue, and I don't understand what's
causing this issue.
When I execute "gpg --expert --edit-key 0x I can see this:
Secret key available.

pub rsa4096/Secret subkey is available.

pub rsa4096/
created: 2020-01-06 expires: 2021-01-05 Nutzung: C
Trust: unbekannt Validity: unbekannt
ssb rsa4096/
created: 2020-01-06 expires: 2021-01-05 Nutzung: A
Card number:0006 
ssb rsa4096/
created: 2020-01-06 expires: 2021-01-05 Nutzung: S
Card number:0006 
ssb rsa4096/
created: 2020-01-06 expires: 2021-01-05 Nutzung: E
Card number:0006 

All subkeys are marked as Stub which is correct because the keys have
been exported before.
However now the keys don't exist anymore on the keycard.

Can you please advise how to fix this issue?

THX

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