You can name the key anything you want, but use the ppk file extension. The key pair is saved in the PuTTY Private Key (PPK) format, which is a proprietary format that works only with the PuTTY tool set. You can keep the default comment or replace it with your own more descriptive comment.Ĭlick Save private key, and then click Yes in the prompt about saving the key without a passphrase. A Key comment is generated for you, including the date and timestamp.
When the key is generated, it appears under Public key for pasting into OpenSSH authorized_keys file. To generate random data in the key, move your mouse around the blank area in the PuTTY window. Set the Number of bits in a generated key to 2048 if not already set.For the Type of key to generate, accept the default key type of RSA.In the Key menu, confirm that the default value of SSH-2 RSA key is selected.Specify a key type of SSH-2 RSA and a key size of 2048 bits: Find puttygen.exe in the PuTTY folder on your computer, for example, C:\Program Files (x86)\PuTTY.Important Ensure that you are using the latest version of PuTTY, see.
