Rec. ITU-T Q.3057 (04/2020) Signalling requirements and architecture forinterconnection between trustable networkentities
Summary
History
FOREWORD
Table of Contents
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Overview of interconnection between trustable network entities
     6.1 Introduction of public key infrastructures
     6.2 Cross-certification
          6.2.1 Peer to peer model
          6.2.2 Root CA model
          6.2.3 Bridge CA model
7 Architecture for interconnection between trustable network entities
     7.1 Reference architecture
     7.2 Functional entities
          7.2.1 Certification authority (CA)
          7.2.2 Trusted signalling certificate authority (TSCA)
          7.2.3 Signalling security gateway (SSGW)
          7.2.4 Network entity (NE)
     7.3 Reference points
          7.3.1 Sa reference point
          7.3.2 Sb reference point
          7.3.3 Sc reference point
          7.3.4 Sd reference point
          7.3.5 TSa reference point
8 Signalling requirements for interconnection between trustable network entities
     8.1 General requirements
     8.2 Requirements for SSGW
     8.3 Signalling requirements for TSa reference point
9 Procedures for interconnection between trustable network entities
     9.1 CA high level functions
          9.1.1 CA PKI key-pair provisioning
          9.1.2 Build CA certification path
               9.1.2.1 Local certification path
               9.1.2.2 Cross-domain certification path
          9.1.3 Generation and validation of signatures in the same security domain
          9.1.4 Generation of signatures cross security domains
     9.2 TSCA high level functions
          9.2.1 CA certificate issuance
          9.2.2 Signalling procedures of TSCA
     9.3 Security policy of SSGW
     9.4 Signalling procedures of SSGW
     9.5 Message signature schemes and algorithms used in the SSGW
10 Security considerations
Appendix I  Scenarios of interconnection between trustable network entities
     I.1 TCAP transaction between trustable network entities
     I.2 CLI transition between trustable network entities
     I.3 Diameter transaction between trustable network entities
Bibliography