If a public/private key pair is generated for Mac or Linux (OpenSSH-style private key), it can easily be converted for use on Windows (PPK-style private key) - or vice versa - using PuTTYgen.

directions_walk STEPS

To convert private Mac/Linux (OpenSSH-style) key to Windows (PPK-style) key:

  • If needed, download PuTTYgen from the PuTTY download page
  • Launch the program. Visit Conversions > Import Key.
  • Browse to and open the OpenSSH-style key (typically named id_rsa)
  • Click the Save private key button. When prompted "Are you sure you want to save this key without a passphrase to protect it?" choose Yes. Recommended filename: id_rsa.ppk

To convert private Windows (PPK-style) key to Mac/Linux (OpenSSH-style) key:

  • If needed, download PuTTYgen from the PuTTY download page
  • Launch the program. Visit File > Load private key.
  • Browse to and open the PPK-style private key (id_rsa.ppk)
  • Visit Conversion > Export OpenSSH key
  • When prompted "Are you sure you want to save this key without a passphrase to protect it?" choose Yes. Save the file. Recommended filename: id_rsa


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