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Hi, Iamp;#39;m Nick Lethaby the IoT ecosystem manager at Texas Instruments. Iamp;#39;m presenting a multipart training series called Understanding Secure Connectivity in IoT and Embedded Systems Devices. This is the fourth module in this series, called An Introduction to Digital Certificates. Weamp;#39;ll discuss what digital certificates are, how they are issued, how they are validated, and how they are stored on the embedded device. To understand this module itamp;#39;s definitely helpful if youamp;#39;ve been through some of the previous modules, especially the one on asymmetric and symmetric encryption. Letamp;#39;s first discuss why digital certificates are needed. As you learned in the previous module, asymmetric cryptography uses public and private key pairs for authentication of entities. However, when a server receives a public key from an entity that wishes to connect to it, it has no easy way to know whether that entity is trustworthy or not, and it is who it purports
