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When loading the Signed Applet encountering the problem "unable to verify signature block file".
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Posted By:   pabbisetty_kirankumar
Posted On:   Thursday, November 15, 2001 09:12 AM

I have created a signedjar file using Netscape Object Signing tool called signtool.exe. I have created a test certificate and added it to Netscape browser's Yours Certificates group. Then using this certificate I have singed the directory which has the applet and generated the signed jar file. Now when I am trying to load this jar file in to the browser I am getting the following exceptions. Can u please guide me as early as possible. java.lang.SecurityException: cannot verify signature block file META-INF/ZIGBERT at sun.security.util.SignatureFileVerifier.process(Unknown Source) at java.util.jar.JarVerifier.processEntry(Unknown Source) at java.util.jar.JarVerifie   More>>

I have created a signedjar file using Netscape Object Signing tool called signtool.exe. I have created a test certificate and added it to Netscape browser's Yours Certificates group. Then using this certificate I have singed the directory which has the applet and generated the signed jar file. Now when I am trying to load this jar file in to the browser I am getting the following exceptions. Can u please guide me as early as possible.


			
java.lang.SecurityException: cannot verify signature block file META-INF/ZIGBERT

			
at sun.security.util.SignatureFileVerifier.process(Unknown Source)

			
at java.util.jar.JarVerifier.processEntry(Unknown Source)

			
at java.util.jar.JarVerifier.update(Unknown Source)

			
at java.util.jar.JarFile.initializeVerifier(Unknown Source)

			
at java.util.jar.JarFile.getInputStream(Unknown Source)

			
at sun.misc.URLClassPath$4.getInputStream(Unknown Source)

			
at sun.misc.Resource.getBytes(Unknown Source)

			
at java.net.URLClassLoader.defineClass(Unknown Source)

			
at java.net.URLClassLoader.access$100(Unknown Source)

			
at java.net.URLClassLoader$1.run(Unknown Source)

			
at java.security.AccessController.doPrivileged(Native Method)

			
at java.net.URLClassLoader.findClass(Unknown Source)

			
at sun.applet.AppletClassLoader.findClass(Unknown Source)

			
at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)

			
at java.lang.ClassLoader.loadClass(Unknown Source)

			
at sun.applet.AppletClassLoader.loadClass(Unknown Source)

			
at java.lang.ClassLoader.loadClass(Unknown Source)

			
at sun.applet.AppletClassLoader.loadCode(Unknown Source)

			
at sun.applet.AppletPanel.createApplet(Unknown Source)

			
at sun.plugin.AppletViewer.createApplet(Unknown Source)

			
at sun.applet.AppletPanel.runLoader(Unknown Source)

			
at sun.applet.AppletPanel.run(Unknown Source)

			
at java.lang.Thread.run(Unknown Source)



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