Content for TS 33.220 Word version: 17.2.0
J Usage of USS with local policy enforcement in BSF
J.1 General
J.2 Usage scenarios
K GBA-usage examples
K.1 Example on interoperator GBA setup
K.2 Example on interoperator GBA operation
L Information on how security threats related to known GSM vulnerabilities are addressed by the 2G GBA solution
L.1 Impersonation of the UE to the BSF during the run of the Ub protocol
L.2 Impersonation of the BSF to the UE during the run of the Ub protocol
L.3 Finding the GBA key Ks during or after the Ub protocol run
L.4 Bidding down attack
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J Usage of USS with local policy enforcement in BSF |R7| Word‑p. 68
J.1 General Word‑p. 68
J.2 Usage scenarios Word‑p. 68
J.2.1 Scenario 1: NAF does not use USSs, BSF does not have local policy for NAF Word‑p. 69
J.2.2 Scenario 2: NAF does not use USSs, BSF does have local policy for NAF Word‑p. 69
J.2.3 Scenario 3: NAF does use USSs, BSF does not have local policy for NAF Word‑p. 69
J.2.4 Scenario 4: NAF does use USSs, BSF does have local policy for NAF Word‑p. 70
K GBA-usage examples |R7| Word‑p. 71
K.1 Example on interoperator GBA setup Word‑p. 71
K.2 Example on interoperator GBA operation Word‑p. 73
L Information on how security threats related to known GSM vulnerabilities are addressed by the 2G GBA solution |R7| Word‑p. 76
L.1 Impersonation of the UE to the BSF during the run of the Ub protocol Word‑p. 76
L.2 Impersonation of the BSF to the UE during the run of the Ub protocol Word‑p. 76
L.3 Finding the GBA key Ks during or after the Ub protocol run Word‑p. 77
L.4 Bidding down attack Word‑p. 77
