From: Dennis Newbold <dennisn@...>
Date: 2002-04-10T13:58:00+09:00
Subject: Re: crypting ruby source

On Wed, 10 Apr 2002, Ludo wrote:

> Hi,
> 
> Is there anybody aware of a method to crypt the sources of ruby software
> please ?
> 
> I'm looking for a method to hide the code.
> I've tryed to compile this ruby scripts, but as it is somewhat
> complicated that didn't matched.
> 
> thanks
> 
> Ludo
> 
I'm not sure of the context you are working in -- for example, how will
it be decrypted afterwords?  Via a user-supplied key, or is it to be
self decrypting?  In any case, you can probably use the EAY library
services to encrypt it with a triple-DES key or an RSA private key.
You can get it by downloading and building the source for the OpenSSL
package from www.openssl.org.  OpenSSL uses the services of the EAY
library, so when you build it, it builds the EAY library as a DLL
(windows) or a shared library (UN*X).  If its not for commercial use,
you can also get a personal copy of the PGP package, or if it is, you
can buy one fairly inexpensively.  It has a bunch of encryption
utilities, one of which should do the job.  Try using www.google.com
to search for "PGP" and "Pretty Good Privacy" and you should come up
with something.  Good luck.

Dennis