+\dd Specify the size of the key to generate, in bits. Default is 2048.
+
+\dt \cw{\-q}
+
+\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.