Puttygen Examples

puttygen -t rsa -b 2048 -C "commenct for that key" -o putty-private-keyfile.ppk

puttygen -L putty-private-keyfile.ppk

ssh-rsa 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 example key

puttygen putty-private-keyfile.ppk -O private-openssh -o openssh-private-keyfile

-O output-type = specifies what to output. By default, the private key is output.

• private = save the private key in the proprietary PuTTY key format as a .ppk file.
• fingerprint (or -l) = outputs the fingerprint of the key
• public (or -p) = save the public key corresponding to the private key. For SSH2 keys, the public key will be output in the format specified by RFC 4716. This format is supported by, e.g., Tectia SSH. Keys in that format look like this:

• public-openssh (or -L) = save the public key only, in OpenSSH's proprietary format. The format is also supported by Tectia SSH. like this:

  ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTbmdsfawer23lzdHAyNTYAAABBBN+Mh3U/3We4VYtV1QmWUFIzFLTUe32324D/QGtCRGAZn8bxX9KlCrrWISIjSYAwCajIEGSPEZwPNMBoK8XD8Q= test@example.com

• private-openssh = converts the private key to OpenSSH's format. This can only be used for SSH2 keys.
• private-sshcom = converts the private key to the format used by Tectia SSH.
• private-openssh = coverts the private key to the format used by OpenSSH. This format is also supported by Tectia SSH.