Re: Simple cipher program help

From: Paul (luap.h_at_bt_removethis_internet.com)
Date: 04/29/03 

Date: Mon, 28 Apr 2003 23:24:17 +0000 (UTC)

"ošin" <ošin@ragnarok.com> wrote in message
news:varcia1fqvond2@corp.supernews.com...
> > ošin - what do you mean by diffusing data - do mean shift bits left or
> right
> > in the key?
>
> I mean move the bits about to the left and the right in the data, not the
> key.
>
> > If I do that and XOR, will I be able to reverse everything?!
>
> Yes, if you do it in the right way. You use the key information to shift
> bits one way or the other after each round of encrypt, and then you use
the
> same key info to shift them back into place an each round of the decrypt.

So for example, I could use an integer value created from the key, and shift
the data bits at each stage by this value?

Sorry for asking really dumb questions :s

Paul

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