This is a collection of the files that I modified in order to get ECC-LIB (version 2.0) to compile for Windows CE. Since ECC-LIB requires the GNU Multiple Precision Arithmetic Library (GMP) you also need my WinCE port of GMP, which can be found at the same place you downloaded this. Also, I have only tested it on a Compaq iPAQ H3630 (ARM) running the Windows CE (3.00) Pocket PC 2002 operating system. If you manage to compile it and test it on other Windows CE platforms, let me know.
To compile it just copy the files provided here to the distribution directory of ECC-LIB 2.0 and overwrite the existing files there, then simply enter the directory and type nmake. If something goes wrong you may have to tweak the Makefile a bit, go ahead it's easy. There is no installation required, just put all the files from the include directory to your include path and ecc.lib to your library path. When you are using it in Embedded MSVC++ to compile new programs don't forget to define NTRG_WINCE, include the relevant header files and link against ecc.lib and gmp.lib.
In the directory bin/ you can find a pre-compiled (ARM) version.
You can find ECC-LIB at:
http://www.ceid.upatras.gr/faculty/zaro/software/ecc-lib/
Elisavet Konstantinou, Yannis Stamatiou and Christos Zaroliagis, for a great library and for making their work available.