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-rw-r--r--doc/uanytun.8.txt14
1 files changed, 13 insertions, 1 deletions
diff --git a/doc/uanytun.8.txt b/doc/uanytun.8.txt
index f2a2095..d0e1fc6 100644
--- a/doc/uanytun.8.txt
+++ b/doc/uanytun.8.txt
@@ -28,6 +28,7 @@ SYNOPSIS
[ *-m|--mux* <mux-id> ]
[ *-c|--cipher* <cipher type> ]
[ *-a|--auth-algo* <algo type> ]
+[ *-l|--ld-kdr* <ld-kdr> ]
[ *-K|--key* <master key> ]
[ *-A|--salt* <master salt> ]
@@ -215,6 +216,17 @@ Possible values:
If HMAC-SHA1 is used, the packet length is increased by
10 bytes. These 10 bytes contain the authentication data.
+-l|--ld-kdr <ld-kdr>
+~~~~~~~~~~~~~~~~~~~~
+
+The log2 of the key derivation rate. This is used by the key
+derivation to determine how ofen a new session key has to be
+generated. A value of -1 means to generate only one key and use
+it forever. The default is 0 which means to calculate a new key
+for every packet. A value of 1 would tell the key derivation
+to generate a new key after 2 packets, for 2 its 4 packets and
+so on.
+
-K|--key <master key>
~~~~~~~~~~~~~~~~~~~~~
@@ -222,7 +234,7 @@ master key to use for encryption
Master key in hexadecimal notation, eg
01a2b3c4d5e6f708a9b0cadbecfd0fa1, with a mandatory length
-of 32 characters (16 bytes).
+of 32, 48 or 64 characters (128, 196 or 256 bits).
-A|--salt <master salt>
~~~~~~~~~~~~~~~~~~~~~~~