Comment by zzzcpan

Well, I got the impression that the book is an introduction, targeting newbies. Some things look out of place there, like cryptography and distributed systems. Maybe he needed to fill the pages, I don't know. But don't take it seriously, nobody is really going to look at those things and understand what they are about or make any use of them. People are going to have to learn a lot more to even get to a reliable networking service in Go, this book is not going to cut it.