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Import a keypair generated with puttygen
If you already have generated a keypair with puttygen, that you want to import into SkyHiGh, you will need to extract the public key in OpenSSH format.
Open puttygen, and load your existing .ppk file (following the steps above)
Copy the content in the textbox Public key for pasting into OpenSSH authorized_keys file. This content should be pasted into Horizon in this step