Lava's jDES is a highly optimized, highly configurable implementation of the Data Encryption Standard (DES) in Java. jDES was designed with four goals in mind: accuracy, speed, ease of use, and configurability. jDES utilizes Sharkysoft's proprietary reformulation of DES optimized for 32-bit machines. jDES was initially released as an integrated feature of Lava, a general-purpose class library for Java. By popular demand, it is now distributed in its own bundle.
SPOPS (Simple Perl Object Persistence w/ Security) is a robust and powerful Perl module that allows you to serialize objects. It is unique in that it also allows you to apply security to these objects using a fairly simple but powerful scheme of users and groups. It's also unique in that for most objects, you will not need to write any code. All you need is a fairly simple configuration file, and you can have a class for your object ready to go, right out of thin air.
This is an implementation of the java.util.zip classes in pure Java. This provides the functionality of java.util.zip without using native code. This library may prove useful in embedded environments, or in a situation such as applet deployment where it may be insecure to run native code.