Update man page for puttygen --random-device.

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

diff --git a/doc/man-pg.but b/doc/man-pg.but
index 51173e2230b06106099af46d53bc2ef1f0f9930a..9774120e11f8c9202db21acf7ac1a9fba26932b5 100644 (file)
--- a/doc/man-pg.but
+++ b/doc/man-pg.but
@@ -37,9 +37,9 @@ the following section.
 \S{puttygen-manpage-options} OPTIONS
 
 In the first phase, \c{puttygen} either loads or generates a key.
-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.
+Note that generating a key requires random data, 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:
 
@@ -53,8 +53,8 @@ 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}
 
@@ -64,6 +64,17 @@ generate SSH-1 keys).
 
 \dd Suppress the progress display when generating a new key.
 
+\dt \cw{\-\-old\-passphrase} \e{file}
+
+\dd Specify a file name; the first line will be read from this file
+(removing any trailing newline) and used as the old passphrase.
+\s{CAUTION:} If the passphrase is important, the file should be stored
+on a temporary filesystem or else securely erased after use.
+
+\dt \cw{\-\-random\-device} \e{device}
+
+\dd Specify device to read entropy from (default \c{/dev/random}).
+
 In the second phase, \c{puttygen} optionally alters properties of
 the key it has loaded or generated. The options to control this are:
 
@@ -117,9 +128,15 @@ 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
@@ -150,6 +167,14 @@ fingerprint. Otherwise, the \c{\-o} option is required.
 
 \dd Synonym for \q{\cw{-O public}}.
 
+\dt \cw{\-\-new\-passphrase} \e{file}
+
+\dd Specify a file name; the first line will be read from this file
+(removing any trailing newline) and used as the new passphrase. If the
+file is empty then the saved key will be unencrypted. \s{CAUTION:} If
+the passphrase is important, the file should be stored on a temporary
+filesystem or else securely erased after use.
+
 The following options do not run PuTTYgen as normal, but print
 informational messages and then quit:
 
@@ -204,8 +229,3 @@ To add the OpenSSH-format public half of a key to your authorised
 keys file:
 
 \c puttygen -L mykey.ppk >> $HOME/.ssh/authorized_keys
-
-\S{puttygen-manpage-bugs} BUGS
-
-There's currently no way to supply passphrases in batch mode, or
-even just to specify that you don't want a passphrase at all.