With the deployment of 5G networks and the beginning of the design of beyond 5G communications, new critical requirements are emerging in terms of performance, security, and trust for leveraged technologies, such as Software Defined Networking (SDN) and Network Function Virtualization (NFV). One of the requirements at the security and trust level is that when delegating critical tasks and data to the infrastructure deployed in an external domain, the client needs guarantees that the execution has been carried out securely, without data breaches or compromises during computing tasks. To meet this need, this chapter proposes a framework that uses Trusted Execution Environments (TEEs), processing environments isolated from the rest of the system to guarantee the security of the data and tasks processed in them, in order to improve the security of 5G environments. This framework enables the deployment of TEE as a cloud service, also denoted as TEE-as-a-Service or TEEaaS, allowing customers to take advantage of its benefits without having to deal with the configuration of the environment and hardware. Furthermore, this chapter also discusses current trends as well as future challenges related to the deployment of TEEs in 5G environments, providing key aspects for future solutions in the area.

Trusted Execution Environment-Enabled Platform for 5G Security and Privacy Enhancement

Issues concerning online transactions, e-payment mode are among the new challenges that Islamic scientists and researchers must face in broadening the reach of the Shariah e-commerce transaction concept. As Malaysia moves towards e-commerce and online shopping, there is no new trend; there are challenges for solutions based on the Shariah principles. This study aims to investigate and suggest the model development for Shariah e-payment system in Malaysia. This study utilizes a qualitative approach. The data employed were drawn from library research. The contents and textual analyses were employed to achieve this purpose. This study found a model consisting of a number of components, namely the Shariah core component, sound technical means, regulatory body and legal provision to enabling e-commerce transactions.

A Model Development of Shariah Principle in E-Payment: The Case of Malaysia

Building on our experience and other experiments, we perform a strengths, weaknesses, opportunities, and threats analysis of x86 platform trusted execution environments (TEEs) in the telecom industry, including recent developments from CPU and cloud vendors and the vibrant TEE research domain.

Trusted Execution Environments for Telecoms: Strengths, Weaknesses, Opportunities, and Threats

Building on our experience and other experiments, we perform a strengths, weaknesses, opportunities, and threats analysis of x86 platform trusted execution environments (TEEs) in the telecom industry, including recent developments from CPU and cloud vendors and the vibrant TEE research domain. 

Vehicular ad hoc networks VANETs use pseudonyms to communicate among them and with road side units, these pseudonyms are used to authenticate these vehicles and to hide real identities behind these pseudonyms, to better enhance privacy, these pseudonyms are changed frequently so that it will not be that easy to link these pseudonyms together and hence reveal real identities However, changing pseudonyms will not be that useful if previous and current pseudonyms are easily linked together Therefore different techniques have been proposed to hide the pseudonym changes and make it difficult to link pseudonyms together Most of these techniques do not fully quarantine privacy when changing a pseudonym under some situations such as low traffic In this paper, we provide a technique for changing pseudonyms that has the same privacy level under all traffic conditions The technique relies on fixed mix zones that are planted and distributed over the roads By this technique, a vehicle guarantees a high level of security when changing its pseudonym at that mix zone which will make it very difficult for an adversary to link particular pseudonyms together and hence reveal real identity Performance analysis showed that our model works efficiently with very few computational costs

Protecting Privacy in VANETs Using Mix Zones With Virtual Pseudonym Change

Networks of autonomous vehicles roaming in smart cities raise new challenges for end-to-end protection of data in terms of integrity, privacy, efficiency, and scalability. This paper provides a survey of Networks of Trusted Execution Environments (NTEE) architectures. NTEE combine the strong, hardware-rooted security guarantees of the TEE deployed locally in the vehicle, with the distributed protection of a decentralized consensus protocol. We identify three main families of consensus protocols and analyze their architectures, performance, and security, including improvements brought by the TEE. Overall, voting protocols tend to be more efficient for smaller networks, while lottery-based schemes are not easy to apply in a vehicular context due to higher overheads. Both types of protocols reach an intermediate level of security, with variations in byzantine tolerance and types of threats. Graph-based protocols tend to achieve both efficiency and flexibility in terms of network topology support, but their security still remains to be explored.

Marc Lacoste

Papers

Networks of Trusted Execution Environments for Data Protection in Cooperative Vehicular Systems