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Multicast Replay Detection Fred Stivers, Texas Instruments

Multicast Replay Detection Fred Stivers, Texas Instruments. January 14, 2004. Draft 7.0. Clause 8.3.2.3.4 TKIP Replay Detection:

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Multicast Replay Detection Fred Stivers, Texas Instruments

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  1. Multicast Replay DetectionFred Stivers, Texas Instruments January 14, 2004 Fred Stivers, Texas Instruments

  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. Fred Stivers, Texas Instruments

  3. TGe • TGe has added support for priority for multicast/broadcast. Fred Stivers, Texas Instruments

  4. 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. Fred Stivers, Texas Instruments

  5. Motion • Make changes to draft described in document 11-04-0131-03-000i-multicast-replay-detection.doc Fred Stivers, Texas Instruments

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