[Shimmer-users] TinyECC on Shimmer2r

[Karel Heurtefeux]

Hi all,



I'm trying to use TinyECC, a library for Elliptic Curve Cryptography
(http://discovery.csc.ncsu.edu/software/TinyECC
<http://discovery.csc.ncsu.edu/software/TinyECC/> ) on my Shimmer2R sensors
. I'm using TinyECC2.0 and the TinyOS 2.1.2.1.

I modified the NN.h file to include the Shimmer 2R platform:

#ifdef PLATFORM_SHIMMER2R

#define SIXTEEN_BIT_PROCESSOR

#define INLINE_ASM

#endif



I compiled the first example: ECDSA and the compilation goes well except 3
warnings:

NNM.nc: In function 'NNM__NN_SubDigitMult':

NNM.nc:3269:1: warning: no return statement in function returning non-void
[-Wreturn-type]

NNM.nc: In function 'NNM__NN_Sub':

NNM.nc:359:1: warning: no return statement in function returning non-void
[-Wreturn-type]

secp128r1.nc: In function 'secp128r1__CurveParam__omega_mul':

secp128r1.nc:297:1: warning: no return statement in function returning
non-void [-Wreturn-type]

NNM.nc: In function 'NNM__NN_Add':

NNM.nc:265:1: warning: no return statement in function returning non-void
[-Wreturn-type]



However, when I run serialforwarder (java net.tinyos.sf.SerialForwarder
-comm serial@/dev/ttyUSB0:shimmer) and the show_ecdsa java program, nothing
appends (except a start message).



Any idea?



Regards,