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Internet of Things (IoT)
11.8 Bottom-Up Approach for Ensuring Security
The security of a device must be ensured throughout its course of development, from the
early prototyping to the publishing phase and even further [4].
11.8.1 Security While Booting
When a system is started and put into a state of readiness for operation, the software on
the gadget is validated on the basis of its credibility and authenticity with the help of
cryptography by generating signatures or authentication log-in systems in a digital form.
Even though authentication has been made, there is still a requirement of securing the
devices from intrusion during the period when a computer program is being executed.
11.8.2 Control over the Accessibility
This involves restricting the liberty of the devices and its constituents to only the relevant
receivers by designing the OS access controls, which are data retrieval controllers based
Mobile/tablet/laptop
Cloud/internet
data services
Gateway
Hub
Connected devices and embedded sensors/platforms
Lte
Hardware
Communication
Cloud
Application
FIGURE 11.9
Visual representation of certain initial nodes or phrases which serve as potential challenges for security when
the systems are interconnected.