January 2004 doc IEEE 802 11 040132 r

January 2004 doc. : IEEE 802. 11 -04/0132 r 2 Multicast Replay Detection Fred Stivers, Texas Instruments January 14, 2004 Submission 1 Fred Stivers, Texas Instruments

January 2004 doc. : IEEE 802. 11 -04/0132 r 2 Draft 7. 0 • Clause 8. 3. 2. 3. 4 TKIP Replay Detection: • “Each TSC (48 bit counter) shall be selected from a single pool by each transmitter for each temporal key—i. e. , each transmitter has its own unique TSC for each directional temporal key established. ” • “A receiver shall maintain a separate set of TKIP TSC replay counters for each MAC address from which it has received TKIP traffic. ” • Clause 8. 3. 3. 4. 3 PN and Replay Detection (i. e. CCMP): • “The PN (a 48 -bit counter) shall be selected from a single pool by each transmitter for each temporal key (TK). ” • “A receiver shall maintain a separate set of PN replay counters for each MAC address from which it receives CCMP traffic. ” Based on this text, it is not clear that a receiver must support a separate replay counter(s) for multicast/broadcast traffic. • Submission 2 Fred Stivers, Texas Instruments

January 2004 doc. : IEEE 802. 11 -04/0132 r 2 TGe • TGe has added support for priority for multicast/broadcast. Submission 3 Fred Stivers, Texas Instruments

January 2004 doc. : IEEE 802. 11 -04/0132 r 2 Required Changes • Update text in Clause 8. 3. 2. 3. 4 and 8. 3. 3. 4. 3. • Add 2 bits to RSN Capability to indicate the number of multicast/broadcast replay counters a receiver supports. • Update text in Clause 7. 3. 2. 9. 3. • Update MIBs. Submission 4 Fred Stivers, Texas Instruments

January 2004 doc. : IEEE 802. 11 -04/0132 r 2 Motion • Make changes to draft described in document 11 -04 -0131 -03 -000 i-multicastreplay-detection. doc Submission 5 Fred Stivers, Texas Instruments