| commit | 778effd96739f3bb85b4bcbe8af8e9b8315fac9a | [log] [tgz] |
|---|---|---|
| author | cacu <carles.cufi@nordicsemi.no> | Mon Mar 07 13:09:22 2016 +0100 |
| committer | cacu <carles.cufi@nordicsemi.no> | Mon Mar 07 13:09:22 2016 +0100 |
| tree | e80d235bfb0071099ca01c158ecf787e70ad24ea | |
| parent | 01f15fb6b345f6c5673aa2063d6ac4009bdbcb8f [diff] |
Add a new uECC_VLI_NATIVE_LITTLE_ENDIAN compile-time macro that enables fully native little endian platforms interfacing with little endian byte streams to avoid using additional stack space and pre and post byte reversals
A small and fast ECDH and ECDSA implementation for 8-bit, 32-bit, and 64-bit processors.
The static version of micro-ecc (ie, where the curve was selected at compile-time) can be found in the “static” branch.
Compressed points are represented in the standard format as defined in http://www.secg.org/collateral/sec1_final.pdf; uncompressed points are represented in standard format, but without the 0x04 prefix. All functions except uECC_compress() only accept uncompressed points; use uECC_compress() and uECC_decompress() to convert between compressed and uncompressed point representations.
Private keys are represented in the standard format.
I recommend just copying (or symlink) the uECC files into your project. Then just #include "uECC.h" to use the micro-ecc functions.
For use with Arduino, you can just create a symlink to the uECC directory in your Arduino libraries directory. You can then use uECC just like any other Arduino library (uECC should show up in the Sketch=>Import Library submenu).
See uECC.h for documentation for each function.
uECC_OPTIMIZATION_LEVEL), you must change them in your Makefile or similar so that uECC.c is compiled with the desired values (ie, compile uECC.c with -DuECC_OPTIMIZATION_LEVEL=3 or whatever).-fomit-frame-pointer GCC option (this is enabled by default when compiling with -O1 or higher).uECC_OPTIMIZATION_LEVEL >= 3, you must use the -fomit-frame-pointer GCC option (this is enabled by default when compiling with -O1 or higher).-O1 or higher).advapi32.lib system library.