updates.

diff --git a/TODO-SILC b/TODO-SILC
index ffbadbe38fd3ca959167c337d5ec6614fc38f25e..751ac92b77060472e03445d936c4abe67429985a 100644 (file)
--- a/TODO-SILC
+++ b/TODO-SILC
@@ -19,6 +19,10 @@ point.
  o Group Diffie-Hellman protocol for establishig key with two or more
    users on a channel.
 
+ o Define that with CTR mode PFS MUST be enabled in SKE.  CTR rekey
+   cannot be done without PFS because the counter block requires fresh
+   HASH value which requires PFS in rekey.
+
  o Extend the Channel ID port to be actually a counter, allowing the
    2^32 channels per cell, instead of 2^16 like now.  The port with
    compliant implementation would always be 706, and it could be used