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Content for  TS 33.533  Word version:  18.3.0

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7 Security related services  7.1 General  7.2 SLPKMF services  7.2.1 General  7.2.2 Nslpkmf_Discovery service  7.2.2.1 Nslpkmf_Discovery_AnnounceAuthorize service operation  7.2.2.2 Nslpkmf_Discovery_MonitorAuthorize service operation  7.2.2.3 Nslpkmf_Discovery_DiscoveryAuthorize service operation  7.2.3 Nslpkmf_SLPKMFKeyRequest service  7.2.3.1 Nslpkmf_SLPKMFKeyRequest_UnicastKey service operation  7.2.3.2 Nslpkmf_SLPKMFKeyRequest_GroupcastKey service operation 
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7  Security related services  p. 18

7.1  General  p. 18

This clause defines the network services required to support the security procedures described in clause 6.

7.2  SLPKMF services  p. 19

7.2.1  General  p. 19

The following Table illustrates the SLPKMF Services and Service Operations.
Service Service Operations Operation Semantics Example Consumer(s)
Nslpkmf_DiscoveryAnnounceAuthorizeRequest/ResponseSLPKMF
MonitorAuthorizeRequest/ResponseSLPKMF
DiscoveryAuthorizeRequest/ResponseSLPKMF
Nslpkmf_SLPKMFKeyRequestUnicastKeyRequest/ResponseSLPKMF
GroupcastKeyRequest/ResponseSLPKMF
Up

7.2.2  Nslpkmf_Discovery service  p. 19

7.2.2.1  Nslpkmf_Discovery_AnnounceAuthorize service operation  p. 19

Service operation name:
Nslpkmf_Discovery_AnnounceAuthorize.
Description:
The consumer NF obtains the authorization from the SLPKMF for announcing in the PLMN.
Input, Required:
User Info ID, Ranging/SL Positioning Application Identifier, UE Role.
Input, Optional:
None.
Output, Required:
Authorization result.
Output, Optional:
None.

7.2.2.2  Nslpkmf_Discovery_MonitorAuthorize service operation  p. 19

Service operation name:
Nslpkmf_Discovery_MonitorAuthorize.
Description:
The consumer NF obtains the authorization from the SLPKMF for monitoring in the PLMN.
Input, Required:
User Info ID, Ranging/SL Positioning Application Identifier, UE Role, PC5 UE security capability.
Input, Optional:
None.
Output, Required:
The chosen PC5 ciphering algorithm, discovery security materials.
Output, Optional:
Discovery User Integrity Key (DUIK).

7.2.2.3  Nslpkmf_Discovery_DiscoveryAuthorize service operation  p. 19

Service operation name:
Nslpkmf_Discovery_DiscoveryAuthorize.
Description:
The consumer NF obtains the authorization from the SLPKMF for a discoverer UE in the PLMN to operate Model B restricted discovery.
Input, Required:
User info ID, Ranging/SL Positioning Application Identifier, UE Role, PC5 UE security capability.
Input, Optional:
None.
Output, Required:
The chosen PC5 ciphering algorithm, discovery security materials.
Output, Optional:
Discovery User Integrity Key (DUIK).

7.2.3  Nslpkmf_SLPKMFKeyRequest service  p. 20

7.2.3.1  Nslpkmf_SLPKMFKeyRequest_UnicastKey service operation  p. 20

Service operation name:
Nslpkmf_SLPKMFKeyRequest_UnicastKey.
Description:
Provides Ranging related keying material for unicast communication.
Input, Required:
Ranging/SL Positioning Application Identifier, SLPK ID, KSLP freshness parameter 1.
Input, Optional:
None.
Output, Required:
KSLP, KSLP freshness parameter 2.
Output, Optional:
None.

7.2.3.2  Nslpkmf_SLPKMFKeyRequest_GroupcastKey service operation  p. 20

Service operation name:
Nslpkmf_SLPKMFKeyRequest_GroupcastKey.
Description:
Provides Ranging related keying material for groupcast communication.
Input, Required:
SLPGK ID, Group Identifier.
Input, Optional:
None.
Output, Required:
SLPGK.
Output, Optional:
None.

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