Wireshark-bugs: [Wireshark-bugs] [Bug 6191] New: Could nas-eps dissector check the ciphering sta
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 2 Aug 2011 04:26:11 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6191

           Summary: Could nas-eps dissector check the ciphering status by
                    type of ciphering algorithm?
           Product: Wireshark
           Version: 1.6.1
          Platform: Other
        OS/Version: Windows XP
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: billyjeans@xxxxxxxxx


Build Information:
Version 1.6.1 (SVN Rev 38096 from /trunk-1.6)
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Now the nas-eps check the ciphering status by "guess" from the pd bits: 
/* If pd is in plaintext this message probably isn't ciphered */
if((pd!=7)&&(pd!=2)&&(pd!=15))

However this may not work all the time.

Is it possible that nas-eps dissector could check the ciphering status by using
previously received type of ciphering algorithm?

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