Biblio

With the rapid development of IoT in recent years, IoT is increasingly being used as an endpoint of supply chains. In general, as the majority of data is now being stored and shared over the network, information security is an important issue in terms of secure supply chain management. In response to cyber security breaches and threats, there has been much research and development on the secure storage and transfer of data over the network. However, there is a relatively limited amount of research and proposals for the security of endpoints, such as IoT linked in the supply chain network. In addition, it is difficult to ensure reliability for IoT itself due to a lack of resources such as CPU power and storage. Ensuring the reliability of IoT is essential when IoT is integrated into the supply chain. Thus, in order to secure the supply chain, we need to improve the reliability of IoT, the endpoint of the supply chain. In this work, we examine the use of IoT gateways, client certificates, and IdP as methods to compensate for the lack of IoT resources. The results of our qualitative evaluation demonstrate that using the IdP method is the most effective.

Identity management is an essential cornerstone of securing online services. Service provisioning relies on correct and valid attributes of a digital identity. Therefore, the identity provider is a trusted third party with a specific trust requirement towards a verified attribute supply. This trust demand implies a significant dependency on users and service providers. We propose a novel attribute aggregation method to reduce the reliance on one identity provider. Trust in an attribute is modelled as a combined assurance of several identity providers based on probability distributions. We formally describe the proposed aggregation model. The resulting trust model is implemented in a gateway that is used for authentication with self-sovereign identity solutions. Thereby, we devise a service provider specific web of trust that constitutes an intermediate approach bridging a global hierarchical model and a locally decentralized peer to peer scheme.

Upon the new paradigm of Cellular Internet of Things, through the usage of technologies such as Narrowband IoT (NB-IoT), a massive amount of IoT devices will be able to use the mobile network infrastructure to perform their communications. However, it would be beneficial for these devices to use the same security mechanisms that are present in the cellular network architecture, so that their connections to the application layer could see an increase on security. As a way to approach this, an identity management and provisioning mechanism, as well as an identity federation between an IoT platform and the cellular network is proposed as a way to make an IoT device deemed worthy of using the cellular network and perform its actions.

Cloud technologies are increasingly important for IT department for allowing them to concentrate on strategy as opposed to maintaining data centers; the biggest advantages of the cloud is the ability to share computing resources between multiple providers, especially hybrid clouds, in overcoming infrastructure limitations. User identity federation is considered as the second major risk in the cloud, and since business organizations use multiple cloud service providers, IT department faces a range of constraints. Multiple attempts to solve this problem have been suggested like federated Identity, which has a number of advantages, despite it suffering from challenges that are common in new technologies. The following paper tackles federated identity, its components, advantages, disadvantages, and then proposes a number of useful scenarios to manage identity in hybrid clouds infrastructure.