Java Applet security

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  18 years ago

  by John J

  John J

  , United States

  Joined 18 years ago

  Dear helper,
  

  
  I am in the process of taking over a project and got some problem. The project is written in ASP and downloads some java applet to client. Java applet is zipped in a JAR file and has been digital signed. With the original JAR file, I can download and execute applet without problem. I tried to make some change to the applet and I didn't have the resources to digital sign the new JAR file. I got a "java class not found" message on my broswer with the unsigned JAR file. I have changed browser (IE) setting to allow unsigned JAVA content to be run but seems it doesn't work.
  

  
  Could anybody tell me what could be wrong ? Is it possible, certain type of applet has to be signed ?
  

  
  Thanks in advance,
  

  
  John
  

  
  

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• • Reply

  18 years ago

  by coolio

  Coolio

  a place, United States

  Joined 18 years ago

  Curious...
  

  
  How did you make 'changes' to the applet file if
  it was in a .jar file...? What is it you are trying to
  change in the applet?

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• • Reply

  18 years ago

  by John J

  John J

  , United States

  Joined 18 years ago

  I have java class source code. Actually I haven't made any change yet but just want to make sure my procedure is correct. I compiled source code and use "jar" utility to re-generate .jar file. Since I don't have the access to digital signature, I cannot sign the .jar file. I can see .jar file is downloaded from the server but somehow the java class inside it doesn't run.

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