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Terminal hung when executing 'ssh-keygen -o -t ecdsa -b 521' #8835

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opened 2026-01-31 01:39:06 +00:00 by claunia · 4 comments
claunia commented 2026-01-31 01:39:06 +00:00
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Originally created by @tgtran on GitHub (Jun 5, 2020).

Environment

10.0.18363.0 Microsoft Windows NT 10.0.18363.0

Windows Terminal version (if applicable):
1.0.1401.0

Any other software?


# Steps to reproduce

ssh-keygen -o -C noname -t ecdsa -b 521
ssh-keygen -t ed25519

# Expected behavior

Generating public/private rsa key pair.
Enter file in which to save the key (/home/ylo/.ssh/id_rsa): 

# Actual behavior
Terminal hung.  Open another Windows Terminal instance and run the same command - it would run
Originally created by @tgtran on GitHub (Jun 5, 2020). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment 10.0.18363.0 Microsoft Windows NT 10.0.18363.0 Windows Terminal version (if applicable): 1.0.1401.0 Any other software? ``` # Steps to reproduce ssh-keygen -o -C noname -t ecdsa -b 521 ssh-keygen -t ed25519 # Expected behavior Generating public/private rsa key pair. Enter file in which to save the key (/home/ylo/.ssh/id_rsa): # Actual behavior Terminal hung. Open another Windows Terminal instance and run the same command - it would run
claunia added the Needs-Tag-FixResolution-No-ReproNeeds-Attention labels 2026-01-31 01:39:07 +00:00
claunia commented 2026-01-31 01:39:07 +00:00
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@WSLUser commented on GitHub (Jun 5, 2020):

This used to work. I generated a 4096 rsa key with win32-openssh in Terminal just fine in preview.

@WSLUser commented on GitHub (Jun 5, 2020): This used to work. I generated a 4096 rsa key with win32-openssh in Terminal just fine in preview.
claunia commented 2026-01-31 01:39:08 +00:00
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@DHowett commented on GitHub (Jun 10, 2020):

This still works for me, with and without win32 input mode. People report this sometimes, but we've never been able to find a common thread.

What keyboard layout are you using? Does it actually work when you run it again/in another tab?

@DHowett commented on GitHub (Jun 10, 2020): This still works for me, with and without win32 input mode. People report this sometimes, but we've never been able to find a common thread. What keyboard layout are you using? Does it actually work when you run it again/in another tab?
claunia commented 2026-01-31 01:39:08 +00:00
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@tgtran commented on GitHub (Jun 10, 2020):

US keyboard - and yes, it worked if I ran it again in another tab.

@tgtran commented on GitHub (Jun 10, 2020): US keyboard - and yes, it worked if I ran it again in another tab.
claunia commented 2026-01-31 01:39:08 +00:00
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@DHowett commented on GitHub (Jun 26, 2020):

This is wild. Unfortunately, given that we can't repro it locally -- and it looks like the repro's gone away -- there's not much we can do here. Really sorry about that.

If you hit this again, please let me know!

@DHowett commented on GitHub (Jun 26, 2020): This is wild. Unfortunately, given that we can't repro it locally -- and it looks like the repro's gone away -- there's not much we can do here. Really sorry about that. **If you hit this again**, please let me know!
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Reference: starred/terminal#8835
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