Browser Security

HotJava Attributes

• ClassPath: Attribute of the browser
• ReadACL, WriteACL, ExceACL: Attributes of browser
• Firewall configuration: attribute of browser
• Local or Remote choice: attribute of each class
• URL: attribute of each remote class

Netscape Restrictions
Applets cannot do the following:

• load libraries or define native methods
• read or write files on the client side(until there is a user specific exception)
• make network connections except to the source host
• start another program at the client side
• cannot read some system properties
• open windows that look different from the ones the application brings up