Java SE (Java Platform, Standard Edition)

Hello,
I have an applet that allows user to upload files to the server. The applet opens a socket and writes the files to the server in a stream. This all works fine except some systems that use a smart card to authencate the user.
On those systems I create a key store and load it with the certs from the smart card but when I try to write to the server it alwasy fails with *403.13* error saying the certs are missing. I conmfirmed that the keystore is populated with certs from the smart card.
Is there a way for my applet to use the current browers session or certs to connect to the server?

I can post code if needed

Thanks