Internet of Things (IoT) has a promising future and will soon connect billions of devices. For IoT, security has always been a major concern. But the good news is that cryptography offers various options to secure IOT from hackers; hence, it is a key to the coming era of IoT.
When we talk about using cryptography within IoT, we are talking about using cryptography across many layers of the communication stack. If we look at the OSI model, we can see that crypto is used at Layer 2 and up with linking operating at level 2, networking operating at layer 3, and transporting operating at layer 4:
At the Application Layer, Cryptography is also used to protect communication through both authentication and encryption. Before we begin our description about specific cryptographic approaches for IOT protocols, let’s first talk about the ready availability of exploitation tools for existing wireless protocols. As IOT matures, keep in mind that there are many tools available...