Word File Creation

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venukus@gmail.com - 13 Sep 2005 00:50 GMT

Hi all,

We are developing an application, which needs us to encrypt a Word
document and decrypt it later before viewing it in Word Application.
Encryption and decryption both work fine. The problem is, we want to
avoid saving the decrypted content as a file on hard disk.

By not saving the decrypted content as a file on hard disk, we can make
sure that a decrypted file is never available on a client's machine
for him/her to make copies from. This is a security measure that we
want to build into our application.

Any help appreciated !!!

Thanks,
Venu Gopal S.R.

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Jonathan West - 13 Sep 2005 01:37 GMT

Word must have a file. The only way I can think of to address this issue
would be to set up a RAMdiak in memory. I haven't messed around with
Ramdisks since the days of DOS and I have no idea whether it is even
possible to create them under Windows.

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Jonathan West - Word MVP
www.intelligentdocuments.co.uk
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> Hi all,
>
[quoted text clipped - 12 lines]
> Thanks,
> Venu Gopal S.R.

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Word Heretic - 13 Sep 2005 14:43 GMT

G'day venukus@gmail.com,

This is pointless. When you display the decrypted file there is
nothing to stop your gentle reader doing any of these:

Select all, copy, Open Wordpad, paste

File > Save (as)

File > Print > file

and more. Any reasonably competent user can work around many of the
common blocks used to implement these measures as well. An expert
could 'crack' it in a few hours.

Once a file is decrypted, you have to trust the user, which means
getting them to sign the usual legalese before you arm them with a
password.

Steve Hudson - Word Heretic

steve from wordheretic.com (Email replies require payment)
Without prejudice

venukus@gmail.com reckoned:

>Hi all,
>
[quoted text clipped - 12 lines]
>Thanks,
>Venu Gopal S.R.

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