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ec/ecp_nistz256.c: fix compiler warnings.

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Reviewed-by: Matt Caswell <matt@openssl.org>
This commit is contained in:
Andy Polyakov 2015-02-10 22:04:28 +01:00
parent ea5f8411cd
commit 5afc296aa6
1 changed files with 24 additions and 25 deletions
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49
crypto/ec/ecp_nistz256.c
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@ -28,11 +28,8 @@
#include <string.h> #include <string.h>
#include "internal/bn_int.h"
#include <openssl/err.h>
#include <openssl/ec.h>
#include "cryptlib.h" #include "cryptlib.h"
#include "internal/bn_int.h"
#include "ec_lcl.h" #include "ec_lcl.h"
#if BN_BITS2 != 64 #if BN_BITS2 != 64
@ -166,7 +163,7 @@ static unsigned int _booth_recode_w7(unsigned int in)
static void copy_conditional(BN_ULONG dst[P256_LIMBS], static void copy_conditional(BN_ULONG dst[P256_LIMBS],
const BN_ULONG src[P256_LIMBS], BN_ULONG move) const BN_ULONG src[P256_LIMBS], BN_ULONG move)
{ {
BN_ULONG mask1 = -move; BN_ULONG mask1 = 0-move;
BN_ULONG mask2 = ~mask1; BN_ULONG mask2 = ~mask1;
dst[0] = (src[0] & mask1) ^ (dst[0] & mask2); dst[0] = (src[0] & mask1) ^ (dst[0] & mask2);
@ -560,9 +557,10 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
P256_POINT *r, P256_POINT *r,
const BIGNUM **scalar, const BIGNUM **scalar,
const EC_POINT **point, const EC_POINT **point,
int num, BN_CTX *ctx) size_t num, BN_CTX *ctx)
{ {
int i, j; size_t i;
int j;
unsigned int idx; unsigned int idx;
unsigned char (*p_str)[33] = NULL; unsigned char (*p_str)[33] = NULL;
const unsigned int window_size = 5; const unsigned int window_size = 5;
@ -573,8 +571,9 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
P256_POINT (*table)[16] = NULL; P256_POINT (*table)[16] = NULL;
void *table_storage = NULL; void *table_storage = NULL;
if ((table_storage = if ((num * 16 + 6) > OPENSSL_MALLOC_MAX_NELEMS(P256_POINT)
OPENSSL_malloc((num * 16 + 5) * sizeof(P256_POINT) + 64)) == NULL || (table_storage =
OPENSSL_malloc((num * 16 + 5) * sizeof(P256_POINT) + 64)) == NULL
|| (p_str = || (p_str =
OPENSSL_malloc(num * 33 * sizeof(unsigned char))) == NULL OPENSSL_malloc(num * 33 * sizeof(unsigned char))) == NULL
|| (scalars = OPENSSL_malloc(num * sizeof(BIGNUM *))) == NULL) { || (scalars = OPENSSL_malloc(num * sizeof(BIGNUM *))) == NULL) {
@ -604,16 +603,16 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
for (j = 0; j < bn_get_top(scalars[i]) * BN_BYTES; j += BN_BYTES) { for (j = 0; j < bn_get_top(scalars[i]) * BN_BYTES; j += BN_BYTES) {
BN_ULONG d = bn_get_words(scalars[i])[j / BN_BYTES]; BN_ULONG d = bn_get_words(scalars[i])[j / BN_BYTES];
p_str[i][j + 0] = d & 0xff; p_str[i][j + 0] = (unsigned char)d;
p_str[i][j + 1] = (d >> 8) & 0xff; p_str[i][j + 1] = (unsigned char)(d >> 8);
p_str[i][j + 2] = (d >> 16) & 0xff; p_str[i][j + 2] = (unsigned char)(d >> 16);
p_str[i][j + 3] = (d >>= 24) & 0xff; p_str[i][j + 3] = (unsigned char)(d >>= 24);
if (BN_BYTES == 8) { if (BN_BYTES == 8) {
d >>= 8; d >>= 8;
p_str[i][j + 4] = d & 0xff; p_str[i][j + 4] = (unsigned char)d;
p_str[i][j + 5] = (d >> 8) & 0xff; p_str[i][j + 5] = (unsigned char)(d >> 8);
p_str[i][j + 6] = (d >> 16) & 0xff; p_str[i][j + 6] = (unsigned char)(d >> 16);
p_str[i][j + 7] = (d >> 24) & 0xff; p_str[i][j + 7] = (unsigned char)(d >> 24);
} }
} }
for (; j < 33; j++) for (; j < 33; j++)
@ -1225,16 +1224,16 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
for (i = 0; i < bn_get_top(scalar) * BN_BYTES; i += BN_BYTES) { for (i = 0; i < bn_get_top(scalar) * BN_BYTES; i += BN_BYTES) {
BN_ULONG d = bn_get_words(scalar)[i / BN_BYTES]; BN_ULONG d = bn_get_words(scalar)[i / BN_BYTES];
p_str[i + 0] = d & 0xff; p_str[i + 0] = (unsigned char)d;
p_str[i + 1] = (d >> 8) & 0xff; p_str[i + 1] = (unsigned char)(d >> 8);
p_str[i + 2] = (d >> 16) & 0xff; p_str[i + 2] = (unsigned char)(d >> 16);
p_str[i + 3] = (d >>= 24) & 0xff; p_str[i + 3] = (unsigned char)(d >>= 24);
if (BN_BYTES == 8) { if (BN_BYTES == 8) {
d >>= 8; d >>= 8;
p_str[i + 4] = d & 0xff; p_str[i + 4] = (unsigned char)d;
p_str[i + 5] = (d >> 8) & 0xff; p_str[i + 5] = (unsigned char)(d >> 8);
p_str[i + 6] = (d >> 16) & 0xff; p_str[i + 6] = (unsigned char)(d >> 16);
p_str[i + 7] = (d >> 24) & 0xff; p_str[i + 7] = (unsigned char)(d >> 24);
} }
} }