stateless-workstation-config
openssh-sk-winhello
stateless-workstation-config | openssh-sk-winhello | |
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1 | 7 | |
22 | 183 | |
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6.4 | 0.0 | |
3 months ago | almost 2 years ago | |
Jinja | C | |
- | GNU Lesser General Public License v3.0 only |
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stateless-workstation-config
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How often should I rotate my SSH keys?
> An even more robust approach is to use some kind of hardware token that can sign short-lived ssh keys, and teach all your servers how to deal with those. That’s neat, but it’s hard to deploy (needs custom ssh settings).
Ahem, no. I use Yubikeys for a few years now. They are literally braindead to use, and works out of the box in recent Ubuntu. Here is an Absible role to get started: https://github.com/cristiklein/stateless-workstation-config/...
Stop making excuses and start protecting your SSH keys!
Disclaimer: I'm not compensated in any way by Yubico, but their product is so darn good that I really want people to start using it.
openssh-sk-winhello
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Use TouchID to Authenticate Sudo on macOS
For Windows, it seems it's possible[0, see footnote], however there are problems like general incompatibilities [1], and official support status is " We have this in our backlog. At this point it's not prioritized.".
0: https://github.com/tavrez/openssh-sk-winhello
0.footnote: "Windows Hello also supports other types of authenticators like internal TPM device(if they support generating ECDSA or Ed25519 keys, they can be used instead of FIDO/U2F security keys)."
1: https://github.com/tavrez/openssh-sk-winhello/issues
2: https://github.com/PowerShell/Win32-OpenSSH/issues/1804#issu...
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Hardening SSH
Awesome article! Also found this tool (tavrez/OpenSsh-sk-winhello) for windows that lets you do this without admin access
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[QUESTION] Is there a best way to manage multiple SSH on multiple Yubikeys?
Which is also how they are generated when retrieving them on a new computer via ssh-keygen -K since I used the application=ssh:yubikey_5 flag when first generating them. So something like ssh-keygen -t ed25519-sk -O resident -O application=ssh:yubikey_5c, but because I am on Windows I also had the -w winhello.dll flag (In case anyone stumbles on this question)
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Using Yubikey FIDO with ssh-agent on macOS?
This is what i used but YMMV https://github.com/tavrez/openssh-sk-winhello/releases/tag/v2.0.0
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Tell HN: GitHub no longer supporting unauthenticated `git://`
> Because AFAIK, (Fido) yubikey support is still missing.
Correct, hopefully Microsoft will provide an updated SSH client soon. It only requires recompiling OpenSSH with the correct flags.
Alternatively, use these build instruction for openssh with FIDO for windows:
https://gist.github.com/martelletto/6a7cf806c6433ac9ce71d66a...
> Using either the PKCS#11 support or the gpg applet requires some extra piece of software
For those wanting to do that, here are some ways:
Using a premade dll:
https://github-wiki-see.page/m/mooltipass/minible/wiki/Setti...
Or with a middleware:
https://github.com/mgbowen/windows-fido-bridge
Using the Hello API:
https://github.com/tavrez/openssh-sk-winhello
Given how many people came with their own ways, I believe there's enough demand for Microsoft to fix that.
- Unable to generate ssh sk keys on Windows 10
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How often should I rotate my SSH keys?
My knowledge of WebAuthn is limited but their invocation of the relevant API seems like it should work for fingerprints also.
[1] https://github.com/tavrez/openssh-sk-winhello
What are some alternatives?
secretive - Store SSH keys in the Secure Enclave
libfido2 - Provides library functionality for FIDO2, including communication with a device over USB or NFC.
sekey - Use Touch ID / Secure Enclave for SSH Authentication!
windows-fido-bridge - An OpenSSH SK middleware that allows you to use a FIDO/U2F security key (e.g. a YubiKey) to SSH into a remote server from WSL or Cygwin.
bless - Repository for BLESS, an SSH Certificate Authority that runs as a AWS Lambda function
wsl2-ssh-pageant - bridge between windows pageant and wsl2
sharkey - Sharkey is a service for managing certificates for use by OpenSSH
Win32-OpenSSH - Win32 port of OpenSSH
authorized_keys - Scripts to manage many-to-many SSH access