In this tutorial, you'll employ the open standard Bouncy Castle to encrypt mobile MIDlet applications. The tutorial provides an overview of how to encrypt application-related data in a Java 2 Micro Edition (J2ME) application. It begins with a brief introduction to data encryption, then continues on to introduce the open source obfuscator, ProGuard. The final section in this tutorial compares MIDlet JAR file sizes, with and without obfuscation.
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