Zend Optimizer encoding

[Daniel Kraft]

Hi all,

I'm currently running into problems with Zend Optimized PHP code; or
more clear, a partner of mine asked me to adapt a script he bought which
is encoded this way.

Does anyone know if this can be done, or if there are any projects
trying to develop a free decoder/decompiler?

I know this might be a bit off-topic here, but I couldn't find a list
that seemed to fit better to me.

Thanks,
Daniel

PS: BTW, is Zend Optimizer as runtime-environment freely available or
only as proprietary binary?

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[Andy Hassall]

Re: Zend Optimizer encoding

On Sun, 08 Jul 2007 18:40:07 +0000, Daniel Kraft <d@domob.euwrot e:

>I'm currently running into problems with Zend Optimized PHP code; or
>more clear, a partner of mine asked me to adapt a script he bought which
>is encoded this way.

You'll need the original source code; this is like trying to get an egg out of
an omlette. You should ask the author of the script.

If you've bought it in an encoded form, you probably didn't buy the right to
make derivative works of it.

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[Daniel Kraft]

Re: Zend Optimizer encoding

Andy Hassall wrote:

On Sun, 08 Jul 2007 18:40:07 +0000, Daniel Kraft <d@domob.euwrot e:
>

>I'm currently running into problems with Zend Optimized PHP code; or
>more clear, a partner of mine asked me to adapt a script he bought which
>is encoded this way.

>
You'll need the original source code; this is like trying to get an egg out of
an omlette. You should ask the author of the script.

Yeah, of course I know. But as the Zend engine is possible to execute
it, this seems to me like C-program compiled into binary object code,
for instance -- i.e., it is still possible to decode it to some extend,
so that one can maybe edit constant strings or something like that.

Or is this really impossible because of some cryptographic signature or
the like? But I can't really image this would be possible.

If you've bought it in an encoded form, you probably didn't buy the right to
make derivative works of it.

I did not buy it, so I can't tell. However, the "owner" did not know he
bought an encrypted PHP script which wasn't editable and adaptable by
someone else. So besides my general hate against anything "closed" or
"proprietar y", this sounds to me like a somewhat "unfair" deal where
they did not tell their customers this is some "closed PHP".

Cheers,
Daniel

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[gosha bine]

Re: Zend Optimizer encoding

Daniel Kraft wrote:

Andy Hassall wrote:

>On Sun, 08 Jul 2007 18:40:07 +0000, Daniel Kraft <d@domob.euwrot e:
>>

>>I'm currently running into problems with Zend Optimized PHP code; or
>>more clear, a partner of mine asked me to adapt a script he bought
>>which is encoded this way.

>>
> You'll need the original source code; this is like trying to get an
>egg out of
>an omlette. You should ask the author of the script.

>
Yeah, of course I know. But as the Zend engine is possible to execute
it, this seems to me like C-program compiled into binary object code,
for instance -- i.e., it is still possible to decode it to some extend,
so that one can maybe edit constant strings or something like that.
>
Or is this really impossible because of some cryptographic signature or
the like? But I can't really image this would be possible.
>

Of course it's possible, here is just the wrong place to ask. Try
alt.crackers or whatever. ;)


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