May 1998
Intermediate to advanced
362 pages
10h 8m
English
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Platform Security
One of the things that makes Java so interesting is the security
features that are built in to the platform itself. Java was designed
to enable small programs, applets, to be
downloaded and run without danger. Applets are nifty, but without the
right precautions they would be very dangerous. Java’s
bytecode
verifier, ClassLoader, and
SecurityManager work in tandem to safely execute
downloaded classes.
The Java Development Kit (JDK™) 1.2 (in beta as this book goes to press) includes some interesting security enhancements, including the concepts of protection domains, permissions, and policies. I won’t rehash Java’s platform security features here. For a good summary, see Exploring Java by Pat Niemeyer and Joshua Peck (O’Reilly). For a more thorough treatment, including the new JDK 1.2 features, see Java Security by Scott Oaks (O’Reilly). The security that the Java platform provides comes “for free” to application developers. Application-level security, however, needs to be developed into the application. This book is about programming application-level security through the use of cryptography.
Application-level security can compensate for an insecure platform, in some cases. Internet Protocol (IP) networks, for example, are insecure. It’s impossible to prevent packet snooping, Domain Name System (DNS) spoofing, or foul-ups like misdelivered email. A carefully crafted application, however, can compensate for an insecure platform like the IP network. If the body 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.