|
More problems associated with the AEAD counters…. My solution is to get rid of the
need to have counters. We should replace the current fragile specification that seems
to generate comments every single ballot cycle with one that has provable security, is
robust, and does not lose all security if counters happen to repeat.
If you remember, the last time I tried to fix this problem and wanted to make a motion
you asked to wait until the next session so you could read the submission more thoroughly.
I agreed and at the next session there were a half dozen of your co-workers (who I had
never seen in a TGai meeting before) in the back of the room and they all voted down
my proposal (and as soon as the vote was over they left the room).
Perhaps you could ask some of your coworkers to fix it since they feel so strongly
about it the way it is done now.
Dan.
Hi Dan, George,
Could you help to provide the resolution text for the comment below in MDR?
P128L28 the little-endianness of 802.11 disagrees with ‘first bit is 1’
The discussion from Editor’s meeting is that “Dangerous as specified – should be described as an integer field of 13 octets width. The special value should be 2**((13*8)-1).”
The related text in D4.0 is cited below:
FILS requires an additional element: a 13 octet AEAD counter to be part of the newly created PTKSA. The STA shall set the AEAD
counter to 13 octets of zero and the AP shall set the first octet to the value 128 and the remaining octets to zero (i.e. the first bit of the AEAD counter is 1 and the rest of the bits in the counter are 0). To allow for proper processing, each side shall
include the AEAD counter of the other as a peer’s AEAD counter (see 11.11.2.6 (AEAD cipher mode for FILS)).
Best Regards,
Ping Fang
_______________________________________________________________________________
IF YOU WISH to be Removed from this reflector, PLEASE DO NOT send your request to this
CLOSED reflector. We use this valuable tool to communicate on the issues at hand.
SELF SERVICE OPTION:
Point your Browser to - http://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGAI and
then amend your subscription on the form provided. If you require removal from the reflector
press the LEAVE button.
Further information can be found at: http://www.ieee802.org/11/Email_Subscribe.html
_______________________________________________________________________________
|