Securing an embedded system is incredibly important and having a digital signature plays a crucial role in that. A digital signature confirms that a specific piece of information came from a specific organization (i.e. the one with the private key as described below) and has not been modified.
Follow-up articles will firstly cover related issues such as how to secure and handle your private key, why this is so important, and how SEGGER does it. After that, articles will address how digital signatures are applied to solve particular problems, who stands to benefit, and what the costs are.
This article discusses the basic principles of how to secure your embedded system.