Update docs/usage for 'plink -shareexists'.

[PuTTY.git] / doc / man-pg.but

diff --git a/doc/man-pg.but b/doc/man-pg.but
index dd51d4d15f162e0477508aeb9209157b3ecdfcba..6ee37c9932ac80b491d87296a03146344adc5774 100644 (file)
--- a/doc/man-pg.but
+++ b/doc/man-pg.but
@@ -37,7 +37,11 @@ the following section.
 \S{puttygen-manpage-options} OPTIONS
 
 In the first phase, \c{puttygen} either loads or generates a key.
-The options to control this are:
+Note that generating a key requires random data (from
+\c{/dev/random}), which can cause \c{puttygen} to pause, possibly for
+some time if your system does not have much randomness available.
+
+The options to control this phase are:
 
 \dt \e{keyfile}
 
@@ -49,12 +53,12 @@ OpenSSH and ssh.com's implementation.
 \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}
 
@@ -113,9 +117,15 @@ algorithms are believed compatible with OpenSSH.
 
 \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
@@ -169,9 +179,9 @@ To generate an SSH-2 RSA key pair and save it in PuTTY's own format
 
 \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):