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LWAPP over DTLSW. Securing LWAPP with DTLS. 1. Insert DTLS session establishment between the DISCOVER and JOIN phases 2. Remove the existing LWAPP security scheme

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Securing lwapp with dtls
Securing LWAPP with DTLS

1. Insert DTLS session establishment between the DISCOVER and JOIN phases

2. Remove the existing LWAPP security scheme

This amounts to employing DTLS as a "secure wrapper", with LWAPP treating the resultant channel as a connectionless transport. This works as follows:

o WTP sends DISCOVER message(s)

o AC(s) respond

o Upon selecting an AC to bind with, WTP sends DTLS ClientHello to AC

o AC responds with DTLS ServerHello

o (AC and WTP negotiate algorithms)

o Once DTLS session is established, WTP sends JOIN request, and

LWAPP state machine proceeds as before, sans internal security mechanisms


Lwapp with dtls
LWAPP with DTLS

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Need to add up/down of DTLS connection to all states

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