Basic HTML version of Foils prepared 19 July 97

Foil 10 Java Signed Applets

From Overview of JDK Version 1.1 Extensions CPS616 -- Information Track of CPS -- Spring Semester 97. by Nancy J. McCracken
The new JAR file format is for Java Archives - a file that can contain Java classes and other data, such as images and sounds. The JAR format accomplishes several goals:
  • Data compression for faster downloading - claims to decrease download time from 2-5 times.
  • Signed applets
  • Also used by JavaBeans
A signed applet from a trusted entity can be downloaded to run under appletviewer with full rights as a local application. They do not run under a regular browser where applets come under the regular "sandbox" restrictions of the Java security model.

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