CRES and IEA encrypted messages w/attachments receive error "envelope is damaged"

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Wed, 03/19/2014 - 16:19
Mar 11th, 2014
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Symptom:

When opening CRES and IEA encrypted messages through multiple browser types and using Oracle Java 7 update 40, you may receive the following error:

 "This envelope is damaged and cannot be opened (the Java console may provide more information). Please contact the sender for a replacement envelope."

 

 

Based on known defect:

https://tools.cisco.com/bugsearch/bug/CSCuj26423

Workaround:

Below is a link to instructions from Oracle to assist users in clearing the java cache. 

NOTE: although Oracle did not go into detail on which to choose, it is very important that ALL checkboxes are checked in the 'Delete Files and Applications' dialogue box (step 2 of the second section).

http://www.java.com/en/download/help/plugin_cache.xml

Clearing the Java Plug-in cache forces the browser to load the latest versions of web pages and programs.

 

 

Clear Java cache by deleting Temporary Files through the Java Control Panel. 

Find the Java Control Panel

Windows 8 
Use search to find the Control Panel

  • Press Windows logo key + W to open the Search charm to search settings
    OR
    Drag the Mouse pointer to the bottom-right corner of the screen, then click on the Searchicon.
  • In the search box enter Java Control Panel
  • Click on Java icon to open the Java Control Panel.

Windows 7, Vista

  • Click on the Start button and then click on the Control Panel option.
  • In the Control Panel Search enter Java Control Panel.
  • Click on the Java icon to open the Java Control Panel.

Windows XP

  • Click on the Start button and then click on the Control Panel option.
  • Double click on the Java icon to open the Java Control Panel.

Mac OS X 10.7.3 and above

  • Click on Apple icon on upper left of screen.
  • Go to System Preferences
  • Click on the Java icon to access the Java Control Panel.

Delete Temporary Files through the Java Control Panel

  1. In the Java Control Panel, under the General tab, click Settings under the Temporary Internet Files section.
    The Temporary Files Settings dialog box appears. 
  2. Click Delete Files on the Temporary Files Settings dialog.
    The Delete Files and Applications dialog box appears.
  3. Click OK on the Delete Files and Applications dialog. This deletes all the Downloaded Applications and Applets from the cache.
  4. Click OK on the Temporary Files Settings dialog. If you want to delete a specific application and applet from the cache, click on View Application and View Applet options respectively.
From the ESA, you may also wish to disable the Decryption Applet option.
 
From the GUI on your ESA: Security Services -> Cisco IronPort Email Encryption -> Select the Encryption Profile
  • CLICK the Advanced drop-down
  • Un-select "Use Decryption Applet"
  • CLICK Submit
  • CLICK Commit Changes
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