February 2020
Beginner
621 pages
19h 34m
English
book
Introduction to Cryptography with Coding Theory, 3rd Edition
by Wade Trappe, Lawrence C. Washington
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17.2 Threshold Schemes
In the previous section, we showed how to split a secret among people so that all were needed in order to reconstruct the secret. In this section we present methods that allow a subset of the people to reconstruct the secret.
It has been reported that the control of nuclear weapons in Russia employed a safety mechanism where two out of three important people were needed in order to launch missiles. This idea is not uncommon. It’s in fact a plot device that is often employed in spy movies. One can imagine a control panel with three slots for keys and the missile launch protocol requiring that two of the three keys be inserted and turned at the same time in order to launch missiles to eradicate the earth.
Why not just ...
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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.