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PKM (Privacy and Key Management) authorization
This protocol is used to send an authorization token to an authorized SS. And it contains
three communication steps between SS and BS. Figure 4-3[52] The first two steps are sent by SS
for verifying itself with BS and the third one is used for response from BS to SS.
Privacy and Key Management
Figure 4-3 PKM Authorization Process and Parameters
PKM is used to establish data SAs between SS and BS. This protocol can have two or three
steps of message exchange between SS and BS. Figure 4-4[52] The first step is optional. It
depends on whether that BS requests rekeying or not. The second one, SS uses it to initiate the
protocol and BS reply with the third one.
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