Go to your ssh key dir and print the contents of the private key file (id_ed25519) in my case.
Create a new text file and paste the contents of your private key file inside and save.
Open PuTTY Key Generator
Click File → Load private key
Select all files from file extensions
Open text file containing your key
The key is imported now.
Now, you can save your private key in PuTTY’s weird format.
Click on ‘Save private key’
The following command generates a public and private ed25519 key pair.
ssh-keygen -t ed25519
Enter a password to protect the key if you wish then hit enter.
Private and public keys have now been generated and are stored in the location listed
Next step is to install the private key on the server
ssh-copy-id andre@localhost
Verify fingerprint to make sure you are connecting to the intended server.
Enter your password.
This public key has now been added to the server.
