On 11/04/2013 16:23, Adrien Vogt-Schilb wrote:
On 11/04/2013 11:15, Carrico, Paul wrote:
Dear All,
I know it's not possible to encrypt a Scilab .sci file so far ; I
want to deny reading but I want to allow execution ...
Does somebody has a trick ?
(creating a binary file, include it in a C file, etc. ...I've don't know)
Paul
Dear Paul,
No trick will be never possible. The user can always use fun2string to
display the source code of any function that Scilab can execute after
reading it from a .sci file. You cannot prevent Scilab for doing so.
Scilab can be executed in a mode where it displays each line of code
before executing it.
The user can also modify Scilab source code to get Scilab display
whatever Scilab is allow to read. If Scilab can execute it, Scilab can
display it. This is completely unavoidable.
Well, it's not completely true: what you say applies to macros, not to C
(or Fortran) native functions (that is, compiled and linked).
You can translate all your code to C and write the proper wrapper to use
it like a native scilab function and compile it and then remove the sources.
I think this should work but I don't know if it worths the effort.
Antoine
(and if you distribute it, are you still in agreement with scilab open
licence your binary blob with no source?)
--
Adrien Vogt-Schilb (Cired)
+33 (0) 1 43 94 73 83
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