TS 33.401 – EPS Security Architecture
3GPP TS 33.401 is the 3GPP Technical Specification for EPS Security Architecture. Its official 3GPP title is “Security architecture”. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.2.0 in Rel-19.
Specifies security architecture, features, mechanisms, and procedures for Evolved Packet System (EPS) including EPC and E-UTRAN.
Releases and versions of TS 33.401
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.2.0 | Read · Download (3GPP) |
| Rel-18 | 18.3.0 | Read · Download (3GPP) |
| Rel-17 | 17.7.0 | Read · Download (3GPP) |
| Rel-16 | 16.4.0 | Read · Download (3GPP) |
| Rel-15 | 15.12.0 | Read · Download (3GPP) |
| Rel-14 | 14.6.0 | Read · Download (3GPP) |
| Rel-13 | 13.5.0 | Read · Download (3GPP) |
| Rel-12 | 12.16.0 | Read · Download (3GPP) |
| Rel-11 | 11.9.0 | Read · Download (3GPP) |
| Rel-10 | 10.7.0 | Read · Download (3GPP) |
| Rel-9 | 9.9.0 | Read · Download (3GPP) |
| Rel-8 | 8.8.0 | Read · Download (3GPP) |
Scope of TS 33.401
Category: Security (Authentication). Technology generation: 4G. Network layer: Security.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 33.401
- TS 36.323 PDCP Protocol Specification
- TS 31.102 USIM Application Specification
- TS 35.215 3GPP UEA2 & UIA2 Confidentiality & Integrity Algorithms
- TR 21.905 3GPP Terminology and Definitions
- TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol
- TS 23.216 SRVCC Architecture Enhancements
- TS 22.101 Service Principles for PLMNs
- TS 25.331 RRC Protocol for UE-UTRAN Radio Interface
- TS 44.060 GERAN RLC/MAC Protocol Specification
- TS 23.122 Idle Mode and PLMN Selection Procedures
- TS 33.320 H(e)NB Subsystem Security Architecture
- TS 23.401 Evolved Packet System Architecture
Specifications that reference TS 33.401
- TS 33.501 5G Security Architecture
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 23.401 Evolved Packet System Architecture
- TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol
- TS 23.060 GPRS Stage 2 Service Description
- TS 36.300 E-UTRAN Radio Interface Protocol Architecture
- TS 38.331 NR Radio Resource Control (RRC)
- TS 25.331 RRC Protocol for UE-UTRAN Radio Interface
- TS 23.002 3GPP System Architecture Overview
- TS 24.301 EPS NAS Mobility and Session Management
- TS 25.413 Radio Access Network Application Part (RANAP)
- TS 38.413 NG Application Protocol (NGAP) Specification
Other specifications in the 33 series
- TS 33.320 H(e)NB Subsystem Security Architecture
- TS 33.326 NSSAAF Security Assurance Requirements
- TS 33.328 IMS Media Plane Security
- TS 33.369 AIoT Security Architecture and Procedures
- TS 33.402 Security for non-3GPP access to EPS
- TS 33.434 Security aspects of SEAL for verticals
- TS 33.501 5G Security Architecture
- TS 33.502 Security Events Handling in 5G SBA
Related glossary terms
Related topics
Related technologies
Frequently asked questions
What is 3GPP TS 33.401?
3GPP TS 33.401 is the 3GPP Technical Specification for EPS Security Architecture. Specifies security architecture, features, mechanisms, and procedures for Evolved Packet System (EPS) including EPC and E-UTRAN.
Which 3GPP releases include TS 33.401?
TS 33.401 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.2.0 (Rel-19).
What category does TS 33.401 belong to?
TS 33.401 belongs to the Security (Authentication) category of 3GPP specifications. It applies to 4G networks.
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