May 2018
Intermediate to advanced
328 pages
8h 15m
English
Content preview from The Modern C++ Challenge
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91. Validating user credentials
Write a program that simulates the way users authenticate to a secured system. In order to log in, a user must be already registered with the system. The user enters a username and a password and the program checks if it matches any of its registered users; if it does, the user is granted access, otherwise, the operation fails. For security reasons, the system must not record the password but use an SHA hash instead.
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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.
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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.