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javasecurityappletsignedfingerprint

package and distribute DigitalPersona fingerprint applet

i need to package and distribute a fingerprint applet i made using java and DigitalPersona One-touch fingerprint SDK.

Currently the applet has been tested and compiled into jar using Netbeans 8

To distribute the applet, its needs to be package and signed, there seems to be no help on the internet since i have been searching

  1. How do I sign the jar files?

  2. If I sign the jar files with self generated key locally, will it work in client browser?

After Netbeans compiles the applet to jar, I just copied it to the same directory of the html and called it in the browser like this:

<applet id="fpa"
    code="SensorApplet" archive="FingerprintApplet.jar"
    width="300" height="400">
</applet>

I get the following error when the applet runs

java.lang.noclassdeffounderror: com/digitalpersona/onetouch/capture/event/DPFPDataListener
Solution

  • I found a solution to the problem

    I was able to get the Applet to work in a Firefox browser, although it pops up three security dialog, which the I needed to only to check "I accept ..." and click run

    I simple configure Netbeans to sign the Jar with a self signed cert as it compiled the applet.

    I then included all jar library in the archive parameter of the applet like done below

    <applet id="fpa"
    code="SensorApplet" archive="FingerprintApplet.jar, Jarlib1.jar, Jarlib2.jar, Jarlib3.jar"
    width="300" height="400">
</applet>