January 2019
Beginner to intermediate
745 pages
21h 6m
English
Content preview from Computer Science Illuminated, 7th Edition
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17.2 Preventing Unauthorized Access
One of the most obvious security issues from the user’s perspective is keeping other people from accessing your accounts and information. When you log into a website, for example, providing a username and password, you are performing user authentication. That is, you are convincing the software system that you are who you say you are.
In the website example, the username and password make up the authentication credentials, the information provided by the user to identify themselves. There are three general types of authentication credentials. The first, and most common, is based on something that the user knows, such as a username and password, a personal identification number (PIN), or a combination of ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.