There is also a free obfuscator at SourceGuardian:

http://www.sourceguardian.com/downloads/sg20.zip

The encryption tools to look at are:

Zend encoder
SourceGuardian Pro
Turck MMCache
Ioncube

Doing a google search for any of the above will bring up enough for you
to work with


> -----Original Message-----

> 
> Take a look at Turck MMCache and Zend Encoder, both will require your 
> user to install a free Loader.  Turck MMCache is free, Zend 
> Encoder is 
> not, either will make your applications run faster.
> 
> You should workout good licensing deals with your clients 
> because with 
> enough motivation and time they will reverse engineer an encoded 
> script.  The PHP Obfuscator was intresting but you need to test your 
> application again after you use it because of the changes it makes to 
> the code.
> 
> Most people recommend good legal licensing and a good 
> relationship, if 
> that isn't possible I'd use MMCache or Zend Encoder and 
> accept someone 
> may reverse engineer it at some point, either of these programs are 
> better than something that obscures the code because the store the 
> optimized bytecode which will accelerate the program where an 
> encrypted 
> source file will slow you down, an obscured one shouldn't 
> slow you down 
> much if at all but then there is the testing thing :).
> 
> Jason
> 
> Ivo Fokkema wrote:
> 
> >Hi,
> >
> >I've actually been looking for this kind of things for a 
> while as well. 
> >However, I would not want my client to install something to 
> uncode the 
> >scripts (probably causing the scripts to be unencoded 
> easier). I found
> >these:
> >
> >PHP OBFUSCATOR 
> >http://richard.fairthorne.is-a-geek.com/utils_obfuscate.php
> >
> >Phrozen
> >http://sourceforge.net/projects/phrozen/
> >
> >POBS
> >http://pobs.mywalhalla.net/
> >
> >Anyone have any recommendations or experience with any?
> >
> >--
> >Ivo
> >
> >
> >"Evan Nemerson" <[EMAIL PROTECTED]> wrote in message 
> >news:[EMAIL PROTECTED]
> >  
> >
> >>Take a look at Turck MMCache (free) and Zend Encoder (not).
> >>
> >>http://www.turcksoft.com/en/e_mmc.htm
> >>http://www.zend.com/store/products/zend-encoder.php
> >>
> >>
> >>
> >>On Saturday 06 September 2003 01:59 pm, Charles Kline wrote:
> >>    
> >>
> >>>What methods are available (ups and downs) for encrypting and 
> >>>serializing php applications for sale?
> >>>
> >>>Thanks,
> >>>Charles
> >>>      
> >>>
> >
> >  
> >
> 
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