Re: Simple cipher program help

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


Date: Tue, 29 Apr 2003 00:32:17 +0000 (UTC)


"ošin" <ošin@ragnarok.com> wrote in message
news:varf5j2cl0r6a9@corp.supernews.com...
> > So for example, I could use an integer value created from the key, and
> shift
> > the data bits at each stage by this value?
>
> That would be a start. But you really need to slice and dice, rather than
> just shift all the data a fixed distance at each stage. Try to split and
> swap at each stage. Scramble those eggs! Cop and fold as best you can! Be
> creative.... or better yet, just use DES, 3DES, or best of all, just use
> AES.
>

Thanks. All I need right now is some simple transformations for each stage
of iteration, so I'll leave the major scrambling until later! :)

Thanks again
Paul



Relevant Pages

  • Re: circular shifting a vector/matrix - Problem
    ... corrCoef = zeros(1, numColMatrix01); ... for shiftSize = 1:numColMatrix01, ... Are you sure you want to shift like this (iteration 1, 1 shift, ...
    (comp.soft-sys.matlab)
  • security considerations for: set x dir/[*] dir/*
    ... The following steps for the iteration are: ... contents of $is under the control of an attacker (and this shell ...
    (comp.unix.shell)
  • Re: convergence of QR-algorithm
    ... >Bill, yes I'm doing all of that., alongside using a shift that is the ... In either case the bottom two elements below the diagonal should ... >the one I'm using as it involves more calculation at each iteration. ... >case convergence could never occur. ...
    (sci.math.num-analysis)
  • Re: Position of title changes in each loop. Why?
    ... So I expect titleposition to be the ... You are shifting the title slightly up in each iteration. ... I assume you are plotting on the same axis in each loop. ... You only need to shift it once. ...
    (comp.soft-sys.matlab)
  • Re: security considerations for: set x dir/[*] dir/*
    ... taking into account the cases where $is empty ... The following steps for the iteration are: ...
    (comp.unix.shell)