GPOTD - Furry Lewis
New Blog Series: GPOTD (Guitar Player of the Day): Featured Artist: Furry Lewis. Aside from writing about technical matters, I enjoy writing about music and musicians from time to time. To that end, I want to kick-off a new series GPOTD which features a guitar player that you likely aren’t familiar with. Today at the end of my acoustic guitar lesson, my teacher pulled up some music by this lesser-known player of the American Folk Music Revival. Continue reading
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 readingCrypto 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
Channel Your Inner Gopher
Channeling your Inner Gopher - (Literally) Reflecting upon Channels Many gophers are likely familiar with the communication paradigm, channels. An elegant solution to communicate (uni or bidirectionally) typed information among go-routines. In it’s simplest form, we declare as type-valued channel variable, make it, and then send and receive data through it. Easy enough! package main import ( "fmt" ) func main() { var simpleChan chan int = make(chan int) go func(c chan int) { // send important data to the channel c <- 42 close(c) }(simpleChan) // receive data num := <-simpleChan fmt. Continue reading
