In everyday life – private and business – often the problem occurs where you want to send a secret message over a public, unsecure channel. Such a message could be an email, a binary image for the latest firmware of your device or even a video conference with your business partner. A good example of an unsecure channel could be the internet but also a USB stick sent via postal service. Several mechanisms are available to solve this problem, some of which I want to elaborate on in this blog series.
In this post I will introduce you to asymmetric cryptography by showing the drawbacks of symmetric cryptography and how asymmetric cryptography can solve these problems. I will then dive deeper into the (mathematical) details of the subject. READ MORE