Error: KeyUsage does not allow digital signatures - Java-applet + mutual SSL
We have developed a webbased Java application running in Tomcat under IIS on Windows 2008. The website has 2-way (mutual) SSL enabled in IIS requiring the client to authenticate using a x.509 certificate (PKI) as part of SSL and this works fine with all our certificates using IE. The website also has a java-applet called ViewOne ImageViewer. This works fine with 2-way SSL with some of our certificates but with others we get the exception on the client (java 1.6) during SSL-handshake after the user has selected its authentication certificate: security: KeyUsage does not allow digital signatures