X-Git-Url: http://git.silcnet.org/gitweb/?p=silc.git;a=blobdiff_plain;f=TODO-SILC;h=164bb41fd5de21f42e6e7e974f7a0999d5ddcfb0;hp=ffbadbe38fd3ca959167c337d5ec6614fc38f25e;hb=f449c0a95327fd4e60a5b9d3c9d50fae0f8d835a;hpb=1bd979cd28973f6e65c746021033668d46db55b0

diff --git a/TODO-SILC b/TODO-SILC
index ffbadbe3..164bb41f 100644
--- a/TODO-SILC
+++ b/TODO-SILC
@@ -19,6 +19,25 @@ point.
  o Group Diffie-Hellman protocol for establishig key with two or more
    users on a channel.
 
+ o Change CTR mode description:
+
+    Truncated HASH from SKE (4 bytes) - This value is the first 4
+    bytes from the HASH value that was computed as a result of SKE
+    protocol.  This acts as session identifier and each rekey MUST
+    produce a new HASH value.
+
+   to
+
+    Truncated HASH from SKE (4 bytes) - This value is the first 4
+    bytes from the HASH value that was computed in SKE.  In each rekey 
+    the value MUST be recomputed as follows:
+
+      HASH = hash(new Sending/Receiving IV from SKE)
+
+    The hash function is the one used in SKE.  The 'new Sending/Receiving 
+    IV from SKE' is the first 8 bytes of the new value computed during 
+    rekey.  The first 4 bytes are used from the recomputed HASH.
+
  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