Overview


Cryptography, the science of secret writing, is the biggest, baddest security tool in the application programmer's arsenal. Cryptography provides three services that are crucial in secure programming. These include a cryptographic cipher that protects the secrecy of your data; cryptographic certificates, which prove identity (authentication); and digital signatures, which ensure your data has not been damaged or tampered with.

This book covers cryptographic programming in Java....

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Java Cryptography

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Overview


Cryptography, the science of secret writing, is the biggest, baddest security tool in the application programmer's arsenal. Cryptography provides three services that are crucial in secure programming. These include a cryptographic cipher that protects the secrecy of your data; cryptographic certificates, which prove identity (authentication); and digital signatures, which ensure your data has not been damaged or tampered with.

This book covers cryptographic programming in Java. Java 1.1 and Java 1.2 provide extensive support for cryptography with an elegant architecture, the Java Cryptography Architecture (JCA). Another set of classes, the Java Cryptography Extension (JCE), provides additional cryptographic functionality. This book covers the JCA and the JCE from top to bottom, describing the use of the cryptographic classes as well as their innards.

The book is designed for moderately experienced Java programmers who want to learn how to build cryptography into their applications. No prior knowledge of cryptography is assumed. The book is peppered with useful examples, ranging from simple demonstrations in the first chapter to full-blown applications in later chapters.

Topics include:


  • The Java Cryptography Architecture (JCA)
  • The Java Cryptography Extension (JCE)
  • Cryptographic providers
  • The Sun key management tools
  • Message digests, digital signatures, and certificates (X509v3)
  • Block and stream ciphers
  • Implementations of the ElGamal signature and cipher algorithms
  • A network talk application that encrypts all data sent over the network
  • An email application that encrypts its messages

Covers JDK 1.2 and JCE 1.2.

"Java Cryptology" teaches you how to write secure programs using Java's cryptographic tools. It thoroughly discusses the Java security package and the Java Cryptography Extensions (JCE), showing you how to use security providers and even how to implement your own provider. If you work with sensitive data, you'll find this book indispensable.

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Product Details

  • ISBN-13: 9781449390617
  • Publisher: O'Reilly Media, Incorporated
  • Publication date: 5/1/1998
  • Series: Java Series
  • Sold by: Barnes & Noble
  • Format: eBook
  • Edition number: 1
  • Pages: 364
  • File size: 3 MB

Meet the Author

Jonathan Knudsen is an author at O'Reilly & Associates. His books include The Unofficial Guide to Lego Mindstorms Robots, Java 2D Graphics, and Java Cryptography. He is the Courseware Writer for LearningPatterns.com.

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Table of Contents

Preface xi
1. Introduction 1
2. Concepts 12
3. Architecture 28
4. Random Numbers 38
5. Key Management 49
6. Authentication 92
7. Encryption 120
8. Signed Applets 163
9. Writing a Provider 180
10. SafeTalk 199
11. CipherMail 219
12. Outside the Box 244
A. BigInteger
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