Switch ECGDSA equation to slightly speed-up signing

1 files changed, 1 insertions, 1 deletions

diff --git a/gfpcrypt.h b/gfpcrypt.h
index 0d3c8393..f21363f5 100644
--- a/gfpcrypt.h
+++ b/gfpcrypt.h
@@ -412,7 +412,7 @@ public:
 		// r = x(k * G) mod q

 		r = params.ConvertElementToInteger(params.ExponentiateBase(k)) % q;

 		// s = (k * r − h(m)) * d_A mod q

-		s = a_times_b_mod_c(k * r - e, x, q);

+		s = (k * r - e) * x % q;

 		CRYPTOPP_ASSERT(!!r && !!s);

 	}