January 2018
Intermediate to advanced
340 pages
8h 6m
English
Content preview from Security with Go
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Generating QR codes
A Quick Response (QR) code is a two-dimensional barcode. It stores more information than a traditional one-dimensional line barcode. They were originally developed in the Japanese automotive industry, but have been adopted by other industries. QR codes were approved as an international standard by ISO in 2000. The latest specification can be found at https://www.iso.org/standard/62021.html.
QR codes can be found on some billboards, posters, handouts, and other advertising material. QR codes are also used frequently in transactions. You might see QR codes on train tickets or when sending and receiving cryptocurrency such as Bitcoin. Some authentication services such as two-factor authentication utilize QR codes for convenience. ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.