Question about Exif Data on Jpegs & Forensic Limitations
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Thread: Question about Exif Data on Jpegs & Forensic Limitations

  1. #1
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    Question Question about Exif Data on Jpegs & Forensic Limitations

    I was referred here by Irongeek on one of his tutorials about Exif data. I was hoping someone here could help me with this question.

    Regarding Exif data on Jpeg photographs, specifically the "picture being taken day" -- What are the forensic limitations on the 'picture being taken day?'

    When and how can this data be changed? Is it ever changed automatically when editing the photograph, resizing, making a caption or sidebar, etc...If the Jpeg photo says photoshop 3, and has a picture being taken day of say 6/1/2010, is it possible that the 'picture being taken day' is wrong or not the actual day the picture was taken?

    What does it mean exactly when a picture has a digital stamp saying 'picture being taken day' as 6/1/2010?

    I have more questions but this will head me in the right direction as a good start.

    Thanks,
    Phil
    Last edited by Phil Jayhan; June 1st, 2010 at 01:51 AM.

  2. #2
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    I'm fairly sure this can be done with GIMP. You just have to say so when saving the jpeg file using GIMP. Can anyone else verify this? I'll check myself when I have more time.

  3. #3
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    I am really looking for the forensic limitations of Exif & Metadata;

    1. Can the Exif/Metadat data be changed manually in photoshop 3?
    2. Is it changed automatically when certain edit functions are used? I speak here of the picture being taken day especially.
    3. Is it possible to add captions and other data to the picture without the picture taken day being changed?
    4. What are the forensic limitations of Exif/Metadata?

    Thanks-
    Phil

  4. #4
    Super Moderator: GMT Zone nihil's Avatar
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    Hi Phil,

    Can you give me an example................or PM me so that I can give you an e-mail that accepts attachments up to 10 meg?

    If you cannot do someone any good: don't do them any harm....
    As long as you did this to one of these, the least of my little ones............you did it unto Me.
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  5. #5
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    Nihil,

    Sure thing, I'll PM you in just a few minutes. Thanks for your help! Just please keep what I send you confidential.

    Cheers-
    Phil

  6. #6
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    Nihil,

    I sent you a picture in your pm,...

    Thank you,
    Phil

  7. #7
    BS, EnCE, ACE, Cellebrite 11001001's Avatar
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    Hi Phil-

    I'm sure Nihil has already helped, but shoot me a pm if you have any other questions. There is actually a lot that can be done to manipulate EXIF data.
    That's Officer 11001001 to you...
    Now you see me | Now you don't
    "Relax, Bender; It was just a dream. There's no such thing as two." ~ Fry
    sometimes my computer goes down on me

  8. #8
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    1100,

    Thanks for the offer! I sent you a picture I have questions about. Hopefully I can find out everything I need to know about Exif data and metadata here.

    Thanks for your help!

    Cheers-
    phil

  9. #9
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    Is there anyone else who knows everything about exif metadata and would like to help me out. I was hoping to have had my answers days ago and still haven't gotten the information I needed. There has to be someone out there who knows everything there is about Exif/Metadata and Adobe photodhop 3 and would like to share...

    Anyone?

    Thanks,
    Phil
    Last edited by Phil Jayhan; June 4th, 2010 at 09:46 PM.

  10. #10
    BS, EnCE, ACE, Cellebrite 11001001's Avatar
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    Phil- Check PM

    Also, Nihil, et al. Can we get this moved to Computer Forensics?
    Last edited by 11001001; June 9th, 2010 at 04:32 PM.
    That's Officer 11001001 to you...
    Now you see me | Now you don't
    "Relax, Bender; It was just a dream. There's no such thing as two." ~ Fry
    sometimes my computer goes down on me

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