Contents xiii
15.5.5 Rapid Service Delivery 354
15.5.6 XaaS Models 354
15.5.7 One Cloud 355
15.6 NFV Security: Challenges and Opportunities 355
15.6.1 VNF Security Lifecycle and Trust 355
15.6.2 VNF Security in Operation 358
15.6.3 Multi‐Tenancy and XaaS 359
15.6.4 OPNFV and Openstack: Open Source Projects for NFV 360
15.7 NFV‐based Security Services 364
15.7.1 NFV‐based Network Security 365
15.7.2 Policy‐based Security Services 366
15.7.3 Machine Learning for NFV‐based Security Services 369
15.8 Conclusions 370
References 370
16 Cloud and MEC Security 373
Jude Okwuibe, Madhusanka Liyanage, Ijaz Ahmad, and Mika Ylianttila
16.1 Introduction 373
16.2 Cloud Computing in 5G Networks 374
16.2.1 Overview and History of Cloud Computing 375
16.2.2 Cloud Computing Architecture 376
16.2.3 Cloud Deployment Models 377
16.2.4 Cloud Service Models 378
16.2.5 5G Cloud Computing Architecture 379
16.2.6 Use Cases/Scenarios of Cloud Computing in 5G 380
16.3 MEC in 5G Networks 381
16.3.1 Overview of MEC Computing 381
16.3.2 MEC in 5G 383
16.3.3 Use Cases of MEC Computing in 5G 384
16.4 Security Challenges in 5G Cloud 385
16.4.1 Virtualization Security 385
16.4.2 Cyber‐Physical System (CPS) Security 386
16.4.3 Secure and Private Data Computation 386
16.4.4 Cloud Intrusion 387
16.4.5 Access Control 387
16.5 Security Challenges in 5G MEC 388
16.5.1 Denial of Service (DoS) Attack 389
16.5.2 Man‐in‐the‐Middle (MitM) 389
16.5.3 Inconsistent Security Policies 389
16.5.4 VM Manipulation 390
16.5.5 Privacy Leakage 390
16.6 Security Architectures for 5G Cloud and MEC 391
16.6.1 Centralized Security Architectures 391
16.6.2 SDN‐based Cloud Security Systems 392
16.7 5GMEC, Cloud Security Research and Standardizations 392
16.8 Conclusions 394
References 394