JDK (Java Development Kit) Tutorials

∟Secret Key Generation and Management

This chapter provides tutorial notes and example codes on secret keys. Topics include secret keys for Blowfish, DES, or HmacMD5 encryption algorithms; key generator class; test program to generate secret keys and save them in files.

javax.crypto.SecretKey - The Secret Key Interface

javax.crypto.KeyGenerator - Generating Secret Keys

Converting Secret Keys to and from Byte Arrays

JceSecretKeyTest.java - Secret Key Test Program

Conclusions:

• Secret keys are used for symmetric encryption algorithms like Blowfish, DES, or HmacMD5.
• The javax.crypto.KeyGenerator can be used to generate secret keys.
• Secret keys are usually stored in files in raw format.

Sample programs listed in this chapter have been tested with JDK 1.3.1, 1.4.1 and 1.5.0.

Read my other book "Tutorial Notes on cryptography" for other related topics.

Table of Contents

 About This JDK Tutorial Book

 Downloading and Installing JDK 1.3.1 on Windows

 Downloading and Installing JDK 1.4.1 on Windows

 Downloading and Installing JDK 1.5.0 on Windows

 Downloading and Installing JDK 1.6.2 on Windows

 Date, Time and Calendar Classes

 Date and Time Object and String Conversion

 Number Object and Numeric String Conversion

 Locales, Localization Methods and Resource Bundles

 Calling and Importing Classes Defined in Unnamed Packages

 HashSet, Vector, HashMap and Collection Classes

 Character Set Encoding Classes and Methods

 Character Set Encoding Maps

 Encoding Conversion Programs for Encoded Text Files

 Socket Network Communication

 Datagram Network Communication

 DOM (Document Object Model) - API for XML Files

 SAX (Simple API for XML)

 DTD (Document Type Definition) - XML Validation

 XSD (XML Schema Definition) - XML Validation

 XSL (Extensible Stylesheet Language)

 Message Digest Algorithm Implementations in JDK

 Private key and Public Key Pair Generation

 PKCS#8/X.509 Private/Public Encoding Standards

 Digital Signature Algorithm and Sample Program

 "keytool" Commands and "keystore" Files

 KeyStore and Certificate Classes

►Secret Key Generation and Management

 Cipher - Secret Key Encryption and Decryption

 The SSL (Secure Socket Layer) Protocol

 SSL Socket Communication Testing Programs

 SSL Client Authentication

 HTTPS (Hypertext Transfer Protocol Secure)

 References

 PDF Printing Version