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Re: Fun/Funny Fractal Encryption...

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> "Richard Heathfield"  wrote in message news:mnjual$uni$1@dont-email.me...

> > On 08/07/15 20:10, Chris M. Thomasson wrote:
> >>"James Kuyper"  wrote in message news:559D7019.9060406@verizon.net...
> >
> >
> >>Because that formula is not unique. I've a strong background in math and
> >>science, and that background tells me that there can be many different
> >>ways of expressing the same thing.
> >
> > Ahhh. Well, that sort of implies that there is more than
> > z = z^2 + c that can create the Mset,

> No, it doesn't. Your program's output may have been derived from the 
> Mandelbrot set, but that doesn't mean there isn't some other algorithm 
> that will produce the same result /without/ deriving it from the 
> Mandelbrot set.

Okay. That makes sense to me. I would really like to see how
another algorithm can rip out a key from a given cypertext.
For instance, here are two identical 11 letter words encrypted
with the same formula, or key if you will:

=!xcp7j:3Ee

ct0^[tZT/T%

The only difference is that the second one is in a slightly
different location in the fractal. However, it still uses the
exact same formula.


Another example, using the same 11 letter word:

=!xcp7j:3Ee

=]S4>q4.Bb$`$1M>fB{]Qu

The second is the word repeated twice. Notice how the code
changes for the first occurrence of the word?

This type of behavior might make it a little more difficult to
gain a pattern from ciphertext.


> Let me give you a simpler example, to illustrate the point. Alice writes a 
> program to generate a keystream using a highly complicated algorithm: x[n] 
> = f(x[n-1]) where f() is a scary function that returns a positive integer. 
> As a final step, she uses the given value as an exponent to 5 using her 
> shiny new bignum package, and because she only needs a single digit she 
> now reduces the value modulo 10, so the value actually used for encryption 
> is 5^(x[n]) % 10.

> Her keystream output (which she obviously didn't bother to check) is:

> 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

> It is not difficult to deduce the next number in the keystream without 
> having to know anything at all about f().

lol! That's pretty funny.

Thanks Richard.

:^) 

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Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-07 17:08 -0700
  Re: Fun/Funny Fractal Encryption... Richard Heathfield <rjh@cpax.org.uk> - 2015-07-08 01:12 +0100
    Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-07 17:19 -0700
      Re: Fun/Funny Fractal Encryption... Robert Wessel <robertwessel2@yahoo.com> - 2015-07-07 22:29 -0500
        Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-07 22:43 -0700
          Re: Fun/Funny Fractal Encryption... Robert Wessel <robertwessel2@yahoo.com> - 2015-07-08 03:23 -0500
          Re: Fun/Funny Fractal Encryption... James Kuyper <jameskuyper@verizon.net> - 2015-07-08 07:36 -0400
            Re: Fun/Funny Fractal Encryption... Richard Heathfield <rjh@cpax.org.uk> - 2015-07-08 12:52 +0100
            Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-08 11:10 -0700
              Re: Fun/Funny Fractal Encryption... James Kuyper <jameskuyper@verizon.net> - 2015-07-08 14:46 -0400
                Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-08 12:10 -0700
                Re: Fun/Funny Fractal Encryption... Richard Heathfield <rjh@cpax.org.uk> - 2015-07-08 20:41 +0100
                Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-09 09:55 -0700
                Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-09 11:18 -0700
                Re: Fun/Funny Fractal Encryption... Richard Heathfield <rjh@cpax.org.uk> - 2015-07-09 19:25 +0100
                Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-09 13:49 -0700
                Re: Fun/Funny Fractal Encryption... Richard Heathfield <rjh@cpax.org.uk> - 2015-07-09 22:09 +0100
      Re: Fun/Funny Fractal Encryption... Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-08 00:49 -0700
  Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-07 23:05 -0700
    Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-07 23:15 -0700
  Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 12:25 -0700
    Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-10 15:09 -0700
    Re: Fun/Funny Fractal Encryption... Richard Heathfield <rjh@cpax.org.uk> - 2015-07-15 15:52 +0100
    Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-31 13:40 -0700
      Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-31 13:43 -0700
        Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-31 13:46 -0700
      Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-08-21 14:45 -0700
        Re: Fun/Funny Fractal Encryption... Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-22 01:29 +0100
          Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-08-21 20:03 -0700
            Re: Fun/Funny Fractal Encryption... Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-22 13:02 +0100
              Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-08-22 18:15 -0700
    Re: Fun/Funny Fractal Encryption... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-08-16 12:10 -0700
      Re: Fun/Funny Fractal Encryption... luser droog <luser.droog@gmail.com> - 2015-08-22 22:49 -0700

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