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Online Fractal Encryption experiment in JavaScript...

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Here is a link to an online JavaScript version of my 
fractal encryption experiment:

http://funwithfractals.atspace.cc/ffe


You can simply type in some plaintext, hit encrypt and 
get an encrypted message along with a thumbnail bitmap 
of what the location in the Julia fractal actually looks 
like. Can you please examine the JavaScript and see if 
there are any terrible things I am doing?

It does work for me. For instance, take the following 
encrypted message using the default settings:
____________________________________________
0.4171762064590339 0.3925601542476084
0.2763103370906948 0.11458054742612529

31 5D E7 4D B7 DE FD 8C 33 FF 68 59 A1 8C DC 
3B 5E D8 9F 0E 49 F8 D3 CA E1 0A CC 20 55 8E 
D8 80 CB 70 64 3B EC FD D2 6F 7A C9 5F F6 57 
D0 C6 53 62 2D 60 AD BA 39 82 AC 46 A8 4E 0E 
6C 4C 77 B5 DE 65 54 4D 50 F4 2F 95 17 65 C3 
3E A5 2A 63 6F 17 
____________________________________________

Simply copy-and-paste the data between the lines above 
into the Ciphertext textarea and hit the decrypt button 
to see the message.

What do you think of this?

I am basically converting each byte of the plaintext into 
a complex number, then running a fractal iteration on them, 
and finally encrypting the byte using the result of said 
iteration via modular arithmetic.

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Online Fractal Encryption experiment in JavaScript... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-11-20 13:00 -0800
  Re: Online Fractal Encryption experiment in JavaScript... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2015-11-21 11:35 -0800
    Re: Online Fractal Encryption experiment in JavaScript... "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-11-21 14:22 -0800

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