August 2005
Beginner
256 pages
8h 26m
English
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Non-Repudiation
Non-repudiation is the presentation of unforgeable evidence that a message was sent or received. If messages or transactions can be disputed, then important identity actions can be challenged and jeopardized. These disputes can take two forms. Consider two people, Alice and Bob, who are exchanging messages. In one case, Alice denies sending a message to Bob that he claims to have received. Being able to counter Alice's denial is called Non-Repudiation of Origin (NRO). In the second case, Alice claims to have sent Bob a message that he denies having received. Offering evidence to counter Bob's claim is called Non-Repudiation of Receipt (NRR).
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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.