\dt \cw{\-t} \e{keytype}
\dd Specify a type of key to generate. The acceptable values here are
-\c{rsa} and \c{dsa} (to generate SSH-2 keys), and \c{rsa1} (to
-generate SSH-1 keys).
+\c{rsa}, \c{dsa}, \c{ecdsa}, and \c{ed25519} (to generate SSH-2 keys),
+and \c{rsa1} (to generate SSH-1 keys).
\dt \cw{\-b} \e{bits}
-\dd Specify the size of the key to generate, in bits. Default is 1024.
+\dd Specify the size of the key to generate, in bits. Default is 2048.
\dt \cw{\-q}
\dt \cw{private-openssh}
-\dd Save an SSH-2 private key in OpenSSH's format. This option is not
+\dd Save an SSH-2 private key in OpenSSH's format, using the oldest
+format available to maximise backward compatibility. This option is not
permitted for SSH-1 keys.
+\dt \cw{private-openssh-new}
+
+\dd As \c{private-openssh}, except that it forces the use of OpenSSH's
+newer format even for RSA, DSA, and ECDSA keys.
+
\dt \cw{private-sshcom}
\dd Save an SSH-2 private key in ssh.com's format. This option is not
\c puttygen -t rsa -C "my home key" -o mykey.ppk
-To generate a larger (2048-bit) key:
+To generate a larger (4096-bit) key:
-\c puttygen -t rsa -b 2048 -C "my home key" -o mykey.ppk
+\c puttygen -t rsa -b 4096 -C "my home key" -o mykey.ppk
To change the passphrase on a key (you will be prompted for the old
and new passphrases):