May 2014
Intermediate to advanced
350 pages
9h 55m
English
Content preview from Computing
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295
Chapter 30
Public-Key Cryptography
30.1 THE SITUATION IN THE 1960s AND1970s
BEFORE THE PUBLIC KEYS
During the 1960s, the cost and performance of computers improved
remarkably due to the development of electronics and semiconductor
technology. In the early 1960s, IBM and other major computer manufac-
turers produced high-performance computers that used transistors and
diodes in logic circuits in central processing units. Since then, computers
have become more powerful and cheaper, and the computer market has
been rapidly expanding ever since.
Before the 1960s, cryptosystems were mainly used by the government
and various military and intell ...
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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.