提交 49b05c7d 编写于 作者: R Rich Salz

Rename index to idx to avoid symbol conflicts.

Picky compilers with old index() string functions.
Reviewed-by: NMatt Caswell <matt@openssl.org>
上级 625a9baf
......@@ -116,13 +116,13 @@ void ecp_nistz256_to_mont(BN_ULONG res[P256_LIMBS],
const BN_ULONG in[P256_LIMBS]);
/* Functions that perform constant time access to the precomputed tables */
void ecp_nistz256_scatter_w5(P256_POINT *val,
const P256_POINT *in_t, int index);
const P256_POINT *in_t, int idx);
void ecp_nistz256_gather_w5(P256_POINT *val,
const P256_POINT *in_t, int index);
const P256_POINT *in_t, int idx);
void ecp_nistz256_scatter_w7(P256_POINT_AFFINE *val,
const P256_POINT_AFFINE *in_t, int index);
const P256_POINT_AFFINE *in_t, int idx);
void ecp_nistz256_gather_w7(P256_POINT_AFFINE *val,
const P256_POINT_AFFINE *in_t, int index);
const P256_POINT_AFFINE *in_t, int idx);
/* One converted into the Montgomery domain */
static const BN_ULONG ONE[P256_LIMBS] = {
......@@ -563,7 +563,7 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
int num, BN_CTX *ctx)
{
int i, j;
unsigned int index;
unsigned int idx;
unsigned char (*p_str)[33] = NULL;
const unsigned int window_size = 5;
const unsigned int mask = (1 << (window_size + 1)) - 1;
......@@ -666,10 +666,10 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
ecp_nistz256_scatter_w5 (row, &temp[1], 16);
}
index = 255;
idx = 255;
wvalue = p_str[0][(index - 1) / 8];
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
wvalue = p_str[0][(idx - 1) / 8];
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
/*
* We gather to temp[0], because we know it's position relative
......@@ -678,12 +678,12 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
ecp_nistz256_gather_w5(&temp[0], table[0], _booth_recode_w5(wvalue) >> 1);
memcpy(r, &temp[0], sizeof(temp[0]));
while (index >= 5) {
for (i = (index == 255 ? 1 : 0); i < num; i++) {
unsigned int off = (index - 1) / 8;
while (idx >= 5) {
for (i = (idx == 255 ? 1 : 0); i < num; i++) {
unsigned int off = (idx - 1) / 8;
wvalue = p_str[i][off] | p_str[i][off + 1] << 8;
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
wvalue = _booth_recode_w5(wvalue);
......@@ -695,7 +695,7 @@ static void ecp_nistz256_windowed_mul(const EC_GROUP *group,
ecp_nistz256_point_add(r, r, &temp[0]);
}
index -= window_size;
idx -= window_size;
ecp_nistz256_point_double(r, r);
ecp_nistz256_point_double(r, r);
......@@ -943,7 +943,7 @@ static void ecp_nistz256_avx2_mul_g(P256_POINT *r,
unsigned char sign1, digit1;
unsigned char sign2, digit2;
unsigned char sign3, digit3;
unsigned int index = 0;
unsigned int idx = 0;
BN_ULONG tmp[P256_LIMBS];
int i;
......@@ -955,19 +955,19 @@ static void ecp_nistz256_avx2_mul_g(P256_POINT *r,
/* Initial four windows */
wvalue = *((u16 *) & p_str[0]);
wvalue = (wvalue << 1) & mask;
index += window_size;
idx += window_size;
booth_recode_w7(&sign0, &digit0, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign1, &digit1, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign2, &digit2, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign3, &digit3, wvalue);
ecp_nistz256_avx2_multi_gather_w7(point_arr, preComputedTable[0],
......@@ -987,21 +987,21 @@ static void ecp_nistz256_avx2_mul_g(P256_POINT *r,
ecp_nistz256_avx2_to_mont(&aX4[4 * 9], &aX4[4 * 9]);
ecp_nistz256_avx2_set1(&aX4[4 * 9 * 2]);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign0, &digit0, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign1, &digit1, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign2, &digit2, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign3, &digit3, wvalue);
ecp_nistz256_avx2_multi_gather_w7(point_arr, preComputedTable[4 * 1],
......@@ -1023,21 +1023,21 @@ static void ecp_nistz256_avx2_mul_g(P256_POINT *r,
ecp_nistz256_avx2_point_add_affines_x4(aX4, aX4, bX4);
for (i = 2; i < 9; i++) {
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign0, &digit0, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign1, &digit1, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign2, &digit2, wvalue);
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
booth_recode_w7(&sign3, &digit3, wvalue);
ecp_nistz256_avx2_multi_gather_w7(point_arr,
......@@ -1066,8 +1066,8 @@ static void ecp_nistz256_avx2_mul_g(P256_POINT *r,
ecp_nistz256_avx2_convert_transpose_back(res_point_arr, aX4);
/* Last window is performed serially */
wvalue = *((u16 *) & p_str[(index - 1) / 8]);
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
booth_recode_w7(&sign0, &digit0, wvalue);
ecp_nistz256_gather_w7((P256_POINT_AFFINE *)r,
preComputedTable[36], digit0);
......@@ -1129,7 +1129,7 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
const PRECOMP256_ROW *preComputedTable = NULL;
const EC_PRE_COMP *pre_comp = NULL;
const EC_POINT *generator = NULL;
unsigned int index = 0;
unsigned int idx = 0;
const unsigned int window_size = 7;
const unsigned int mask = (1 << (window_size + 1)) - 1;
unsigned int wvalue;
......@@ -1249,7 +1249,7 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
{
/* First window */
wvalue = (p_str[0] << 1) & mask;
index += window_size;
idx += window_size;
wvalue = _booth_recode_w7(wvalue);
......@@ -1262,10 +1262,10 @@ static int ecp_nistz256_points_mul(const EC_GROUP *group,
memcpy(p.p.Z, ONE, sizeof(ONE));
for (i = 1; i < 37; i++) {
unsigned int off = (index - 1) / 8;
unsigned int off = (idx - 1) / 8;
wvalue = p_str[off] | p_str[off + 1] << 8;
wvalue = (wvalue >> ((index - 1) % 8)) & mask;
index += window_size;
wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
idx += window_size;
wvalue = _booth_recode_w7(wvalue);
......
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