0 Scope

3GPP43.020Release 17Security related network functionsTS

This Technical Specification specifies the network functions needed to provide the security related service and functions specified in 3GPP TS 42.009.

This specification does not address the cryptological algorithms that are needed to provide different security related features. This topic is addressed in annex C. Wherever a cryptological algorithm or mechanism is needed, this is signalled with a reference to annex C. The references refers only to functionalities, and some algorithms may be identical or use common hardware.

0.1 References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

– References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.

– For a specific reference, subsequent revisions do not apply.

– For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1] 3GPP TS 21.905: “Vocabulary for 3GPP Specifications".

[2] 3GPP TS 41.061: " GPRS ciphering algorithm requirements".

[3] Void

[4] 3GPP TS 42.009: " Security aspects".

[5] 3GPP TS 42.017: " Subscriber Identity Modules (SIM) Functional characteristics".

[6] 3GPP TS 42.056: " GSM Cordless Telephone System (CTS) Phase 1; Service Description; Stage 1".

[7] 3GPP TS 22.060: “General Packet Radio Service (GPRS); Service description; Stage 1".

[8] 3GPP TS 23.003: "Numbering, addressing and identification".

9 GSM 03.56: "Digital cellular telecommunications system (Phase 2+); GSM Cordless Telephone System (CTS), Phase 1; CTS Architecture Description; Stage 2".

[10] 3GPP TS  23.060: " Service description; Stage 2".

[11] 3GPP TS 24.008: “Mobile radio interface layer 3 specification".

[12] Void

[13] 3GPP TS 45.001: “Physical layer on the radio path; General description”.

[14] 3GPP TS 45.002: “Multiplexing and multiple access on the radio path”.

[15] 3GPP TS 45.003: “Channel coding”.

[16] 3GPP TS 29.002: " Mobile Application Part (MAP) specification".

17 3GPP TS 51.011: " Specification of the Subscriber Identity Module- Mobile Equipment (SIM-ME) interface".

[18] 3GPP TS 33.102: "Technical Specification Group Services and System Aspects; 3G Security; Security architecture ".

[19] 3GPP TS 24.301: "Technical Specification Group Core Network and Terminals; Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS)".

[20] 3GPP TS 44.064: "Technical Specification Group Core Network and Terminals; Mobile Station – Serving GPRS Support Node (MS-SGSN); Logical Link Control (LLC) layer specification".

[21] 3GPP TS 55.226: " Technical Specification Group Services and System Aspects; 3G Security; Specification of the A5/4 encryption algorithms for GSM and ECSD, and the GEA4 encryption algorithm for GPRS".

[22] 3GPP TS 33.220: " Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA)".

[23] Void

[24] 3GPP TS 33.102: " 3G security; Security architecture".

[25] 3GPP TS 55.251: "Specification of the GEA5 encryption and GIA5 integrity algorithms for GPRS; GEA5 and GIA5 algorithm specification".

[26] 3GPP TS 55.241: "Specification of the GIA4 integrity algorithm for GPRS; GIA4 specification".

0.2 Abbreviations

Abbreviations used in this specification are listed in 3GPP TS 21.905.

Specific abbreviations used in annex A are listed in clause A.3.

Specific CTS related abbreviations used in annex E are listed in clause E.1.3.

Specific VCGS and VBS related abbreviations used in annex F are listed in clause F.1.3.

Throughout this specification, the abbreviation Kc₁₂₈ is used to indicate a 128-bit ciphering key as derived by UMTS AKA [18]. The abbreviation Kc₁₂₈ is only used where it matters that the ciphering key is 128 bits long; the abbreviation Kc is used in all other places.