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Java Cryptography

Angela Poynton
Ranch Hand

Joined: Mar 02, 2000
Posts: 3143
Are you concerned about someone outside your company
intercepting a password between your applet and your server? Are you
worried about someone inside your company using a packet sniffer to
capture the credit card numbers of your customers? No? Well, perhaps you
should be! As a first step towards closing your security holes you
should pick up a copy of "Java Cryptography". This book is written for
the experienced Java developer with no cryptography background who needs
to build cryptography into their application. The book starts off with a
brief description of secure systems and demonstrates a "Hello
zoT1WY1NJA0=!" program. It then gives a fairly detailed description of
cryptographic concepts and the Java Cryptography Architecture (JCA).
Subsequent chapters discuss how to use the Java Cryptography Extension
(JCE). Chapter 5 covers generating and managing symmetric and asymmetric
keys with an explanation of the difference. Chapter 6 discusses
authenticating users and messages. Signatures and certificates are
covered. Chapter 7 covers encryption techniques using different types of
ciphers. Chapter 8 covers signing applets. The last chapters include
sample encrypted chat and e-mail programs. The end result is a book that
provides excellent coverage of cryptography in Java. The only defect in
the book is that it is three years old (Java 2 was in beta).
Fortunately, the book was written recently enough to include the new
utilities used in Java 2. Even though a new edition is desirable, "Java
Cryptography" still stands alone as the best book available on this
topic. (Thomas Paul - bartender, April 2001)

More info at Amazon.com
More info at Amazon.co.uk
More info at FatBrain.com

Pounding at a thick stone wall won't move it, sometimes, you need to step back to see the way around.
Thomas Paul
mister krabs
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Joined: May 05, 2000
Posts: 13974
This is another one of those topics that O'Reilly publishes that no one else touches. I have 9 O'Reilly books on my bookshelf and everyone is a gem.

Associate Instructor - Hofstra University
Amazon Top 750 reviewer - Blog - Unresolved References - Book Review Blog
Yilmaz Mete

Joined: Dec 23, 2003
Posts: 28
The book is really well-organized, explains the concepts thoroughly, then the usages of these concepts within Java.

But for someone who wants to get deeper into the mathematics behind and how it is to be implemented should get the book from Bruce Schneier Applied Cryptography

Yilmaz Mete
Arjunkumar Shastry
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Joined: Feb 28, 2005
Posts: 986
Does Bruce's book involves mathematics? I think it involves implementation more.Cryptography and network security by William Stallings involves more math.

Namma Suvarna Karnataka
David Hook

Joined: Sep 01, 2005
Posts: 1
In it's time "Java Cryptography" was a great book but now it's badly dated, there have been huge changes to both the JCE and the JCA since it came out.

There are are at least two other books that provide a much more up to date guide to the JCE/JCA. If you're really only interested in the JCE Jason Weiss's book "Java Cryptography Extensions: A practical guide" is not a bad place to start, if you want to go further and you're not afraid of getting a bit API specific in parts "Beginning Cryptography with Java" goes beyond the JCE and deals with the JCA and also a lot of the nuances of the Bouncy Castle APIs (and yes, I'm actually the author of the second book so feel free to get a second opinion). Both Jason's book and mine provide examples on-line from the respective publisher's websites, so if your feeling really lost and don't feel like you can afford a book, the examples are not a bad place to start if you're just trying to get yourself into "the saddle".

Sorry, couldn't resist...
[ September 14, 2005: Message edited by: David Hook ]
Adeel Ansari
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Joined: Aug 15, 2004
Posts: 2874
Thanks, David. We were waiting for a long time, there has been a need for a good book.
I agree. Here's the link: http://aspose.com/file-tools
subject: Java Cryptography
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