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Once finished your public key will be displayed as well as some options to set a passphrase and save your keys. The box at the top is your public key that you would copy into your authorized_keys file in the ssh directory. You can also save the public key and send it to others to grant you access to servers.
Note when you save the private key its in format ".ppk"(Putty Private Key) this will only work in the putty client. If you need a private key without the putty format you can find it under Conversions.
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