OT: Cypto Lib

[Rajinder Yadav]

Ed F. McCurdy wrote:
>>>>>> "Rajinder" == Rajinder Yadav <devguy.ca-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> writes:
> 
>     >> This project wraps openssl for use from python:
>     >> 
>     >> http://chandlerproject.org/bin/view/Projects/MeTooCrypto
>     >> 
>     >> It could be used as guide for how to build a similar interface
>     >> for Ruby.
> 
> Python and Ruby have similar mechanisms for calling code written in C.
> M2Crypto uses SWIG to generate the wrapper code to use openssl.
> SWIG can generate wrapper code for Ruby as well as Python.
> 
>     >> "M2Crypto's unit tests cover over 80% of the Python code."
> 
>     Rajinder> What does that mean, the code is written mostly in python?
>     Rajinder> With Ruby I am planning on doing all the heavy lifting in
>     Rajinder> C/C++ code and just writing Ruby wrappers.
> 
> The Python code being tested is the wrapper code that makes
> openssl functions callable from Python, all the
> crypto work is done inside libssl.so and libcrypto.so from openssl.org.
> 
>     Rajinder> Would know have an idea how M2Crypto is coded, thanks!
> 
> It is coded in much the same way as any typical Ruby Extension Module;
> a google search for "swig ruby" will turn up many similiar examples.
> 
> Ed

Thanks ED,

I was hoping M2Crypto was using SWIG, because than it's just a matter of calling 
swig with the -ruby switch and you have instant interface bindings for Ruby as 
far as I understand.

I started to play around with SWIG and liked the fact that you can leverage SWIG 
interfaces to map C/C++ code to other languages like Ruby, Perl, Python, over a 
dozen other languages to pick.

Unfortunately the SWIG mailing list is pretty limp, great tool with good 
document, but they need to build a more active community, then again maybe not 
that many people get this deep into coding.

I am still waiting for a reply about memory allocation and GC behavior on C/C++ 
   allocated memory and passed to Ruby, or vice versa.

-- 
Kind Regards,
Rajinder Yadav

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