Issue
On December 13, 2012, the certificate verifying the authenticity of the Schneider Electric I/A Series G3 Workbench Applet (wbapplet) expired. Users will see the following error in their browser when accessing a station that is using a version of the wbapplet.jar with an expired code signing certificate:
Environment
Niagara G3
Cause
When accessing an I/A Series G3 station through a web browser using a WbWebProfile, the web browser runs Workbench within a Java applet. To enhance security, this applet is 'signed' using a code signing certificate. This ensures that the applet has come from a reliable source and can be trusted to run with the proper permissions.
Certificates used to sign applets are issued by a Certificate Authority (CA). Each code signing certificate issued by a CA has an established expiration date, with the maximum expiration being two years. Once this expiration date has passed, continuing to use a Java applet with an invalid certificate will result in warning messages within the browser. The applet will only be allowed to run after the user has acknowledged the warning and granted approval.
Resolution
An updated certificate is available in the new wbapplet.jar, available from The Exchange Download Center. This file will need to be added to the Enterprise Network Server, as well as on any ENCs that will be accessed from a browser.
This file is for all released versions of TAC I/A Series G3 and is valid until March 30, 2015. Download wbapplet_March_2015.zip. Extract the wbapplet jar file Click and Download The WbApplet Installation Guide. Note: Updated WbApplet files are available as part of upcoming Niagara 3.5 and 3.6 maintenance builds, as well as being from the Source website. In 3.7, wbapplet.jar is integral to the web.jar and contains an up to date certificate.;
