[Digikam-devel] [Bug 294580] New: Unclear status of jpg-pics: how to check for hidden or even malicious data in jpg?

[Axel Krebs]

https://bugs.kde.org/show_bug.cgi?id=294580

           Summary: Unclear status of jpg-pics: how to check for hidden or
                    even malicious data in jpg?
           Product: digikam
           Version: 2.1.1
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: Image Editor
        AssignedTo: digikam-devel at kde.org
        ReportedBy: axel.krebs at t-online.de


Version:           2.1.1 (using KDE 4.7.4) 
OS:                Linux

Dear all:

I have some hundres of jpg-pics woith pairwise diffeent length. 
I can open most of these pics without aqppearing problems.

When thinking about these different lengths, I come across different metadata.
Other data could be included in hidden. 

I there a way to "normalize" jpg´s to take away all not visual data contained?

Please let me know

Thank you,


Axel

Reproducible: Always

Steps to Reproduce:
Just having a look at pairs of pics. 

Actual Results:  
Just having a look at pairs of pics. 

Expected Results:  
I´d like to understand, and, if neede to "normalize" all jpg pics.

OS: Linux (x86_64) release 3.0.0-16-generic
Compiler: gcc

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