From 4976e022f58f132fb1157fc452499afdbb64a234 Mon Sep 17 00:00:00 2001 From: Dmitry Belyavskiy Date: Fri, 18 Sep 2020 16:27:41 +0300 Subject: [PATCH] Strict alignment Kuznyechik bugfix (cherry picked from commit 1997dd99db27383a89d1f91bd4d7091b553ca6ee) --- gost_grasshopper_math.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/gost_grasshopper_math.h b/gost_grasshopper_math.h index 43341a8..87d1265 100644 --- a/gost_grasshopper_math.h +++ b/gost_grasshopper_math.h @@ -77,9 +77,15 @@ static GRASSHOPPER_INLINE void grasshopper_copy128(grasshopper_w128_t* to, const static GRASSHOPPER_INLINE void grasshopper_append128(grasshopper_w128_t* x, const grasshopper_w128_t* y) { int i; +#ifdef STRICT_ALIGNMENT + for (i = 0; i < 16; i++) { + GRASSHOPPER_ACCESS_128_VALUE_8(*x, i) ^= GRASSHOPPER_ACCESS_128_VALUE_8(*y, i); + } +#else for (i = 0; i < GRASSHOPPER_BIT_PARTS; i++) { GRASSHOPPER_ACCESS_128_VALUE(*x, i) ^= GRASSHOPPER_ACCESS_128_VALUE(*y, i); } +#endif } static GRASSHOPPER_INLINE void grasshopper_plus128(grasshopper_w128_t* result, const grasshopper_w128_t* x, -- 2.39.5