This event will be generated when the UE triggers a bootstrapping procedure towards the BSF when the UE wants to interact with a NAF. The actual bootstrapping procedure is defined in the
TS 33.220, in sections 4.5.2 and in 5.3.2. The information elements shown in Table 14.4.1 table, if available, will be delivered to the DF2, by the BSF.
Information Element
Observed IMSI
Observed Other Identity
Event Type
Event Time
Event Date
Network Element Identifier
B-TID
Key lifetime
Bootstrapping time
14.4.2 Query from NAF Word‑p. 179
The Query from NAF event is generated when the BSF receives an application specific key query from a NAF in order to retrieve GBA based application specific keys and related information. A new event is generated for each individual query events. The information elements shown in Table 14.4.2 will be delivered to the DF2, if available, by the BSF.
Information Element
Observed IMSI
Observed Other Identity
Event Type
Event Time
Event Date
Network Element Identifier
Ks_ext_NAF
NAF_Id
Ks_int_NAF
Ks_NAF
Key lifetime
Bootstrapping time
Ua protocol id
For start of interception where GBA application specific key is already in use a Start of Interception with GBA key event is generated. The elements, shown in Table 14.4.3 will be delivered to the DF2, if available, by the BSF.
Information Element
Observed IMSI
Observed Other Identity
Event Type
Event Time
Event Date
Network Element Identifier
B-TID [Note]
NAF_Id [Note]
Ks_ext_NAF [Note]
Ks_int_NAF [Note]
Ks_NAF [Note]
Key lifetime [Note]
Bootstrapping time [Note]
Ua protocol id [Note]