[Cryptech Tech] Storage of curve parameters for ECDSA

Rob Austein sra at hactrn.net
Thu Jan 14 13:54:30 UTC 2016


At Thu, 14 Jan 2016 11:01:38 +0300, Pavel Shatov wrote:
> 
> Rob, could you please dump "rho" for all the three curves in 
> ecdsa_curves.h? I have a feeling, that "rho" will always be just 1 (one).

Ah.  Hadn't noticed that, I'm just calling libtfm setup function:

  sw/thirdparty/libtfm/tomsfastmath/src/mont/fp_montgomery_setup.c

but you're correct that the computed value is one for all three of
those curves.


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