X-Git-Url: http://www.wagner.pp.ru/gitweb/?p=openssl-gost%2Fengine.git;a=blobdiff_plain;f=gost_grasshopper_math.h;h=91f276fd3bf36122992fcc76d96af531380fcf6d;hp=fb42606b30aaa8b6021a2786866e2b875be40cca;hb=HEAD;hpb=e183e8b50da0b46a957c394af8612432a09a42ca diff --git a/gost_grasshopper_math.h b/gost_grasshopper_math.h index fb42606..91f276f 100644 --- a/gost_grasshopper_math.h +++ b/gost_grasshopper_math.h @@ -57,7 +57,8 @@ static GRASSHOPPER_INLINE void grasshopper_zero128(grasshopper_w128_t* x) { #if(GRASSHOPPER_BITS == 8 || GRASSHOPPER_BITS == 16) memset(&x, 0, sizeof(x)); #else - for (int i = 0; i < GRASSHOPPER_BIT_PARTS; i++) { + int i; + for (i = 0; i < GRASSHOPPER_BIT_PARTS; i++) { GRASSHOPPER_ACCESS_128_VALUE(*x, i) = 0; } #endif @@ -65,18 +66,26 @@ static GRASSHOPPER_INLINE void grasshopper_zero128(grasshopper_w128_t* x) { static GRASSHOPPER_INLINE void grasshopper_copy128(grasshopper_w128_t* to, const grasshopper_w128_t* from) { #if(GRASSHOPPER_BITS == 8 || GRASSHOPPER_BITS == 16) - __builtin_memcpy(&to, &from, sizeof(w128_t)); + __builtin_memcpy(&to, &from, sizeof(grasshopper_w128_t)); #else - for (int i = 0; i < GRASSHOPPER_BIT_PARTS; i++) { + int i; + for (i = 0; i < GRASSHOPPER_BIT_PARTS; i++) { GRASSHOPPER_ACCESS_128_VALUE(*to, i) = GRASSHOPPER_ACCESS_128_VALUE(*from, i); } #endif } static GRASSHOPPER_INLINE void grasshopper_append128(grasshopper_w128_t* x, const grasshopper_w128_t* y) { - for (int i = 0; i < GRASSHOPPER_BIT_PARTS; i++) { + 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, @@ -88,8 +97,9 @@ static GRASSHOPPER_INLINE void grasshopper_plus128(grasshopper_w128_t* result, c // result & x must be different static GRASSHOPPER_INLINE void grasshopper_plus128multi(grasshopper_w128_t* result, const grasshopper_w128_t* x, const grasshopper_w128_t array[][256]) { + int i; grasshopper_zero128(result); - for (int i = 0; i < GRASSHOPPER_MAX_BIT_PARTS; i++) { + for (i = 0; i < GRASSHOPPER_MAX_BIT_PARTS; i++) { grasshopper_append128(result, &array[i][GRASSHOPPER_ACCESS_128_VALUE_8(*x, i)]); } } @@ -101,7 +111,8 @@ static GRASSHOPPER_INLINE void grasshopper_append128multi(grasshopper_w128_t* re } static GRASSHOPPER_INLINE void grasshopper_convert128(grasshopper_w128_t* x, const uint8_t* array) { - for (int i = 0; i < GRASSHOPPER_MAX_BIT_PARTS; i++) { + int i; + for (i = 0; i < GRASSHOPPER_MAX_BIT_PARTS; i++) { GRASSHOPPER_ACCESS_128_VALUE_8(*x, i) = array[GRASSHOPPER_ACCESS_128_VALUE_8(*x, i)]; } } @@ -114,7 +125,7 @@ extern uint8_t grasshopper_galois_alpha_to[256]; extern uint8_t grasshopper_galois_index_of[256]; static GRASSHOPPER_INLINE uint8_t grasshopper_galois_mul(uint8_t x, uint8_t y) { - if (__builtin_expect(x != 0 && y != 0, 1)) { + if (likely(x != 0 && y != 0)) { return grasshopper_galois_alpha_to[(grasshopper_galois_index_of[x] + grasshopper_galois_index_of[y]) % GRASSHOPPER_GALOIS_FIELD_SIZE]; } else {