OpenEuphoria

2. Re: ver 2.5 shroud program

• Posted by Lewis Townsend <keroltarr at hotmail.com> Jun 05, 2005
• 464 views
• Last edited Jun 06, 2005

Bernie Ryan wrote:
> 
> 
> Why can't there be an option in the 2.5 shrouder that
> allows a user to TURN-OFF the IL output and output
> a version 2.4 style shrouded file to be used as an
> include file. What happens when we can no longer use
> a ver 2.4 shrouded file because of new additional features.
> 
> If this can't be done then I suggest that users should
> not waste their money buying a ver 2.5 shrouder. It
> only allows binding and is worthless for the original
> purpose of shrouding to allow distribution of secure
> include files.
> 
> Bernie
> 
> My files in archive:
> w32engin.ew mixedlib.e eu_engin.e win32eru.ew
> 
> Can be downloaded here:
> <a
> href="http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan">http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan</a>
> 

I didn't realize this before but it apears that Bernie is right.
The shroud utility can no longer be used to simply shroud an include file 
which later can be used by an UNshrouded program.

I quote from the documentation: http://www.rapideuphoria.com/bind.htm
"Shrouded files must be run using the interpreter back-end: backend.exe"

Perhaps someone could check this out and make sure.
I don't care so much about backwards compatibility but it would be nice to
be able to shroud just part of a program but not all of it.

I was registered for 2.4 but I don't think I'm registered for 2.5 yet.
Rob could you double-check for me please? I can't remember.
I still have (what I think is 2.4) bind.ex and shroud.bat in my BIN dir.
I just tested and I CAN shroud just an include file and still include it.
Like I said I think this is remnants of my 2.4 install but I can't 
remember if I'm registered for 2.5 or not. I've been with Euphoria 
since 1.4 or 1.5 and so it all starts blurring together after a while. :)

======
Lewy T
http://rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=Townsend

4. Re: ver 2.5 shroud program

• Posted by Lewis Townsend <keroltarr at hotmail.com> Jun 06, 2005
• 513 views

Derek Parnell wrote:
> Yes, this is so. The v2.5 interpreter cannot read shrouded include files. 
>This is by design and not a bug.

To clarify: the v2.5 interpreter (ex.exe) WILL read a v2.4 shrouded file.
I just tested it. I shrouded get.e and wrote a quick program to use it.
However only the 2.5 backend(w/u).exe will run the 2.5 shrouded *.IL files.

So Bernie, anyone that has registered v2.4 can still produce the kind of 
shrouding you like. And it can be run by the v2.5 interpreter.

I hope this helps,
======
Lewy T
http://rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=Townsend

GET.SE
======
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TEST.EX
=======

include get.se

integer k

puts( 1, "Press SHIFT + Q to quit\n" )

k = wait_key()
while k != 'Q' do
	printf( 1, "%s = %d\n", {k,k} )
	k = wait_key()
end while

6. Re: ver 2.5 shroud program

• Posted by Vincent <darkvincentdude at yahoo.com> Jun 06, 2005
• 463 views

Robert Craig wrote:

> I may get around to doing shrouding of include files again,
> but I would do it in a much better way next time. However 
> I really don't like investing a lot in encryption, knowing that 
> tomorrow, or next year, or maybe in ten years, some cracker is 
> going to publish the algorithm, and then I'll encur the wrath
> of Bernie Ryan when he finds that all of his precious proprietary 
> source code has been exposed for all to see. 
 
I personally dont like the concept behind shrouded includes all that much. The
idea that part of the program/library is readable source code, while some or all
the included files could be encryted IL makes me suspicious on what the author is
trying to conceal... perhaps a worm, or virus. Ofcourse the fine people around
here wouldn't have such intention? , that perhaps explains part of the reason
why shrouded includes were very rarely used?

However, I think it would be a very worthwhile time investment to implement TRUE
thread-safety into the translator & interpreter products for v3.0, while we good
people could do the extensive bug testing (testing thread APIs too), and later
develop a cross-platform thread library or just use a 3rd party one. This should
be done because it would make me and alot of other people very pleased, and would
help further make Euphoria a true proffessional development tool :D


Regards,
Vincent

--
Without walls and fences, there is no need for Windows and Gates.