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  1. #1
    Bronze Lounger
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    Securing a MS-Word document (Word 2003)

    <img src=/S/hello.gif border=0 alt=hello width=25 height=29> Loungers

    I am doing some translating of documents, and I am getting paid to do this kind of work.

    I have to rely on PayPal to get paid, but I do not want the customer to be able to open the document until I send them the password.

    Is that enough? I know that passwords can be cracked, and specially if the customer knows what they are doing with MS-Word. So I was hoping I could write a macro that will erase the text of the document on file opening, if the password was cracked...

    But how will I know if it was cracked or not?

    The macro I am thinking about is something like:

    Selection.WholeStory.Delete
    ActiveDocument.Save

    But what about textboxes, I think WholeStory will pick them up as well?

    OK let me know what you think.

    Thanks

    Wassim
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  2. #2
    Plutonium Lounger
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    Re: Securing a MS-Word document (Word 2003)

    So what if the customer disables macros when opening the document?

  3. #3
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    Re: Securing a MS-Word document (Word 2003)

    Hi Wassim,

    If they can handle zip files, why not send them a password-protected zip file instead? That'll stop pretty well anyone relying on vba.

    Cheers
    Cheers,

    Paul Edstein
    [MS MVP - Word]

  4. #4
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    Re: Securing a MS-Word document (Word 2003)

    <img src=/S/thankyou.gif border=0 alt=thankyou width=40 height=15> Hans

    Yes what then? I can try and dig out the Melissa Type code that bypass the security, but by now I think MS has dealt with that.

    I can trick them into saying Enable, but then.. Its up to them...

    So in essence you can't use VBA to secure a document, so we have to rely on File Open passwords, and how secure are these? I know its stored in the Word document's metadata, so anyone with the right tools can get to it.

    Maybe a Zip file with a password will work better.

    Thanks again

    Wassim
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  5. #5
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    Re: Securing a MS-Word document (Word 2003)

    <img src=/S/thankyou.gif border=0 alt=thankyou width=40 height=15>

    Yes I think this is the best way... I am not sure what can be done with Word itself, short of a strong File Open password.

    What happens to the password of a Zip File, is it encrypted and stored in the archive, or simply added to the metadata of the file?

    I will try this, and see how it works.

    Wassim
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  6. #6
    Super Moderator jscher2000's Avatar
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    Re: Securing a MS-Word document (Word 2003)

    The File>Open encryption is the strongest MS has to offer. You have a choice of long-key algorithms to choose from. Obviously your passphrase makes an enormous difference in how hard the file will be to crack.

  7. #7
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    Re: Securing a MS-Word document (Word 2003)

    Hi Wassim,

    I don't know the details of the zip encryption algorithm. And I doubt that the password is stored in the file at all. Many encryption algorithms rely on other methods.

    Cheers
    PS: Using Word 2003's extra security features may create problems for your document's users if they're still using an earlier Word version.
    Cheers,

    Paul Edstein
    [MS MVP - Word]

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