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Sap GUI for Java - Smart Card Authentication?

Hi,

I want to use Sap Gui for Java and authenticate to our Sap systems using a smartcard. I read a lot of threads and manuals on the net but I can't get it to work. Smartcard authentication itself is up and running using opensc (logging into OSS using smartcard works without any issues). When I try to connect to one of our Sap systems using Sap Gui I get the following error

Error: GSS-API(maj): No credentials were supplied

Unable to establish the security context

I think there is missing the "glue" between Sap Gui and opensc. I think either a gss-api compatible lib which provides opensc access or Sap Gui access to opensc itself is needed (like the access to the cert store on windows).

Can somebody help me to solve this problem or point me to the right documentation?

Kind regards,

Soeren Ploennigs

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