Connection to Linux server failed using private key with Remote-SSH extension

Bug Reports
1

Issue Description

The extension fails to handle encrypted private keys and does not prompt for a passphrase during connection setup.

Steps to Reproduce

Expected Behavior

The passphrase prompt should appear after selecting the remote host — matching VS Code’s behavior

Actual Behavior

Screenshots / Screen Recordings

[Info  - 01:20:14.748] Resolving ssh remote authority 'ssh-remote+rocky_lxc.xxxxxxx.xxxx' (attempt #1)
[Info  - 01:20:14.750] SSH Hosts tree view registered successfully
[Error  - 01:20:14.757] Error while parsing SSH public key C:\Users\RS/.ssh/Rocky_lxc.pem:
Error: Encrypted private OpenSSH key detected, but no passphrase given
	at G.parse (c:\Users\RS\AppData\Local\Programs\Qoder\resources\app\extensions\open-remote-ssh\dist\extension.js:1:346559)
	at Object.tt [as parseKey] (c:\Users\RS\AppData\Local\Programs\Qoder\resources\app\extensions\open-remote-ssh\dist\extension.js:1:357647)
	at c:\Users\RS\AppData\Local\Programs\Qoder\resources\app\extensions\open-remote-ssh\dist\extension.js:1:471889
	at Array.map (<anonymous>)
	at e.gatherIdentityFiles (c:\Users\RS\AppData\Local\Programs\Qoder\resources\app\extensions\open-remote-ssh\dist\extension.js:1:471828)
	at async c:\Users\RS\AppData\Local\Programs\Qoder\resources\app\extensions\open-remote-ssh\dist\extension.js:1:394633
[Error  - 01:20:14.758] Couldn't get identities from OpenSSH agent
Error: Failed to connect to agent
	at Socket.n (c:\Users\RS\AppData\Local\Programs\Qoder\resources\app\extensions\open-remote-ssh\dist\extension.js:1:117986)
	at Socket.emit (node:events:519:28)
	at Socket.emit (node:domain:489:12)
	at emitErrorNT (node:internal/streams/destroy:170:8)
	at emitErrorCloseNT (node:internal/streams/destroy:129:3)
	at process.processTicksAndRejections (node:internal/process/task_queues:90:21)
[Trace  - 01:20:14.758] Identity keys:
None
[Info  - 01:20:14.758] Connecting to root@rrr.xxxxxxx.xxxx:15322...
[Info  - 01:20:14.914] Trying no-auth authentication
[Info  - 01:20:14.976] Trying password authentication

Operating System

Current Qoder Version (Menu → About Qoder → Copy)

Version: 0.2.20
VSCode Version: 1.100.0 (user setup)
Commit: 41eefc9d6820b32df7892471dc26c255bf238b67
Date: 2025-12-03T10:05:51.649Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.19045
2

Please submit an issue so that we can troubleshoot it together with the logs.:grinning_face: If there is any progress, I will inform you as soon as possible here