For devices with lifetimes spanning several years, maintenance cycles should be required. Besides, the user depends on an online IdP to provide the required credentials.These characteristics are very important for the interoperability between security technologies of different administrative domains to be accomplished. How to define and construct models to understand these systems and offer resilient services? Physical access control systems PACS provide access control to physical resources, such as buildings, offices or any other protected areas. In traditional model, IdP and SP are grouped into a single entity whose role is to authenticate and control access to their users or devices without relying on any other entity. Collaborating with industry groups, government agencies, and even competitors can pay off in helping to make digital environments safe and secure. We overview the state-of-the-art regarding to resilience in the UbiComp systems and point out future directions for research and innovation [ , , , ]. Naturally, solving societal problems such as inequality or political unrest is typically not on the to-do list of corporate executives. The device identity and the secret keys used during normal operation are provided to the device during this phase.
SecurityRT Tags. Cryptographic primitives involved in joint functionality must then be compatible with all endpoints and respect the constraints of the less powerful devices. Besides, SAML can describe authentication events that use different authentication mechanisms [ ].
Network access is becoming ubiquitous through portable devices and wireless communications, making people more and more dependent on them.
For constrained devices, the provisioning approach is robust since it does not depend on an external service.Hence, this section focuses on highlighting the importance of resilience in the context of UbiComp systems. According to [ , , ], the first step toward achieving interoperability is the adoption of SAML. Side-channel attacks [ ] are a significant threat against cryptography and may use timing information, cache latency, power and electromagnetic emanations to recover secret material. If rigid state management policies are not in place, a signer can re-utilize the same private-key twice, something that would void the security guarantees offered by the scheme. Several solutions that adopted this model combine it with FIM or centralized model, however, novel solutions prefer federated model. Below we will explore some of the main challenges in deploying cryptographic mechanisms for pervasive systems, including how to manage keys and realize efficient and secure implementation of cryptography. IoT requires a global unique identifier for each entity in the network; Credentials - an identifiable object that can be used to authenticate the claimant e. In order to contextualize resilience in the scope of UbiComp, it is important to observe that improvements on information and communication technologies, such as wireless networking, have increased the use of distributed systems in our everyday lives.
Below we will explore some of the main challenges in deploying cryptographic mechanisms for pervasive systems, including how to manage keys and realize efficient and secure implementation of cryptography. In particular, future interoperability problems might arise.
In addition, a centralized IdP must provide different mechanisms to authenticate either users or autonomous devices to be adequate with UbiComp system requirements [ ].