Re: decrypting request

From: Marc Heusser (marc.heusser_at_CHEERSheusser.comMERCIALSPAMMERS.invalid)
Date: 09/30/03 

Date: Tue, 30 Sep 2003 08:36:46 +0200

In article <db947e85.0309292046.4c3aad22@posting.google.com>,
 gpickard@renoimage.com (George P) wrote:

> I am looking for help with decryption analysis some text documents.
> If such a service exists, I am willing to pay for it. I thought this
> would be the place to find out.
>
> I have an application that encrypts the documents for storage, then
> decrypts them when called by a user. I need to know how these docs
> are encrypted so that I can develop an app that will who's sole
> purpose will be to decrypt these files for rendering on a web page.
> The application in question currently has no web functionality.

It would help if you tell all you know: eg what format the source
documents are (pure ascii text, MS word documents, ...)
Then what do you know about the encryption application? Home made?, MS
Word "encryption", pgp? That would give information about how difficult
it is to break, and how to proceed. Some cyphers may be easy to crack,
others are very tough to impossible with reasonable effort.

>
> I have both the source file (encrypted) and the result from the
> application (decrypted). I would believe this to be helpful, but I am
> a complete no nothing when it comes to this sort of thing.

If possible, publish a complete source file and its decryptioin on a web
site.

How come you have a decrypted file? Do you have the
encryption/decryption software? What do you know about that?

And:
What are the circumstances of this need? Why do you need access to this
information and do not have it?
If it's legal: Can you guess at the password?

Hope that gets you started

Marc 

-- 
Marc Heusser - Zurich, Switzerland
Coaching - Consulting - Counselling - Psychotherapy
http://www.heusser.com
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