Convert your PuTTYGen keys

Reusing a key generated in PuTTYGen
If you used PuTTYGen to set up SSH public key authentication for the host you are connecting to, you need to convert your private key so that other SSH clients can use it. To do this:

Open PuTTYGen locally and load the private key you want to convert.

Select Conversions > Export OpenSSH key from the application menu. Save the converted key to a local location under the.ssh directory in your user profile folder (for example C:\Users\youruser\.ssh).

Validate that the local permissions on the exported key file only grant Full Control to your user, Administrators, and SYSTEM.

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