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Re: Javascript Obfuscator problem

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On Tue, 25 Jun 2013 08:51:09 -0600, Mel Smith wrote:

>     I'm just on a 'learning exercise', and thinking of  perhaps
>     obfuscating
> the data (in the internal tables) of my pages. This has nothing to do
> with JS, but, as I said, I'm just trying to get a bit of knowledge about
> obfuscation techniques for later in my development.  I'll be looking
> around (a few months from now) about how to encrypt table data, so that
> the client browser shows the info correctly, but the 'sniffer' of the
> table data has a difficult time de-obfuscating.

Anything that is genuinely worth the effort of obfuscating is worth the 
effort of cracking.

Furthermore, some people will, on detecting your obfuscation, simply 
crack it to see what you're hiding.

It is the very nature of the web that by using wget I can invariably get 
the raw data that a server sends, regardless of cookies, browser 
sniffing, ajax etc at the server.

Once I have the data, I can de-obfuscate it. Alternatively, I can use 
greasemonkey to write a script that walks the dom.

This is assuming that saving the whole web page or simply copying and 
pasting from the screen won't do the job.

You are wasting your time if you are trying to obfuscate data from the 
end user whose browser you are planning to deliver it to. If you need to 
protect it in transit, use https.

-- 
Denis McMahon, denismfmcmahon@gmail.com

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Thread

Javascript Obfuscator problem "Mel Smith" <med_cutout_syntel@aol.com> - 2013-06-24 15:12 -0600
  Re: Javascript Obfuscator problem Stefan Weiss <krewecherl@gmail.com> - 2013-06-25 00:40 +0200
    Re: Javascript Obfuscator problem "Mel Smith" <med_cutout_syntel@aol.com> - 2013-06-25 08:51 -0600
      Re: Javascript Obfuscator problem Denis McMahon <denismfmcmahon@gmail.com> - 2013-06-25 20:46 +0000
        Re: Javascript Obfuscator problem "Mel Smith" <med_cutout_syntel@aol.com> - 2013-06-25 15:23 -0600
          Re: Javascript Obfuscator problem Andrew Poulos <ap_prog@hotmail.com> - 2013-06-26 08:15 +1000
            Re: Javascript Obfuscator problem "Mel Smith" <med_cutout_syntel@aol.com> - 2013-06-26 17:45 -0600
              Re: Javascript Obfuscator problem Andrew Poulos <ap_prog@hotmail.com> - 2013-06-27 11:58 +1000
                Re: Javascript Obfuscator problem "Mel Smith" <med_cutout_syntel@aol.com> - 2013-06-27 09:10 -0600
                Re: Javascript Obfuscator problem Christoph Michael Becker <cmbecker69@arcor.de> - 2013-06-27 20:49 +0200
                Re: Javascript Obfuscator problem Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-06-27 21:38 +0200
  Re: Javascript Obfuscator problem "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-06-25 10:45 +0200

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