Pothos - A New Take on Data-Flow Frameworks

Data-Flows… like a river In today’s post, I thought I’d take a look at and discuss the Pothos toolkit, a work-flow tool that improves upon the design principles of gnuradio and enables real-time data-flow processes for real-time applications. Using a MacBook Pro, an ettus N210 SDR, and an FM-antenna, I’ll show how easy it is to build an FM Receiver to listen to your favorite radio stations on your laptop. While it’s an expensive way to tune in to your local DJ, it’s a great demonstration of how to use this great kit (written by Josh Blum). Continue reading

Crypto 101: A Brief Tour of Practical Crypto in Golang

Crypto 101: Golang offers a rich collection of packages supporting cryptographic operations. From a beginner’s perspective, maybe too many offerings! I offer up an overview of what’s available and an introduction to some practical uses of cryptography in Golang. Implementation details are always critical when discussing crypto. We’ll discuss some general implications of making poor choices and how such choices can completely undermine any uses of these tools. What’ in the box? Continue reading