#include <string.h>
-#include <openssl/bn.h>
+#include "internal/bn_int.h"
#include <openssl/err.h>
#include <openssl/ec.h>
#include "cryptlib.h"
static int ecp_nistz256_bignum_to_field_elem(BN_ULONG out[P256_LIMBS],
const BIGNUM * in)
{
- if (in->top > P256_LIMBS)
- return 0;
-
- memset(out, 0, sizeof(BN_ULONG) * P256_LIMBS);
- memcpy(out, in->d, sizeof(BN_ULONG) * in->top);
- return 1;
+ return bn_copy_words(out, in, P256_LIMBS);
}
/* r = sum(scalar[i]*point[i]) */
if ((mod = BN_CTX_get(ctx)) == NULL)
goto err;
- if (!BN_nnmod(mod, scalar[i], &group->order, ctx)) {
+ if (!BN_nnmod(mod, scalar[i], group->order, ctx)) {
ECerr(EC_F_ECP_NISTZ256_WINDOWED_MUL, ERR_R_BN_LIB);
goto err;
}
} else
scalars[i] = scalar[i];
- for (j = 0; j < scalars[i]->top * BN_BYTES; j += BN_BYTES) {
- BN_ULONG d = scalars[i]->d[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];
p_str[i][j + 0] = d & 0xff;
p_str[i][j + 1] = (d >> 8) & 0xff;
for (; j < 33; j++)
p_str[i][j] = 0;
- if (!ecp_nistz256_bignum_to_field_elem(temp[0].X, &point[i]->X)
- || !ecp_nistz256_bignum_to_field_elem(temp[0].Y, &point[i]->Y)
- || !ecp_nistz256_bignum_to_field_elem(temp[0].Z, &point[i]->Z)) {
+ if (!ecp_nistz256_bignum_to_field_elem(temp[0].X, point[i]->X)
+ || !ecp_nistz256_bignum_to_field_elem(temp[0].Y, point[i]->Y)
+ || !ecp_nistz256_bignum_to_field_elem(temp[0].Z, point[i]->Z)) {
ECerr(EC_F_ECP_NISTZ256_WINDOWED_MUL, EC_R_COORDINATES_OUT_OF_RANGE);
goto err;
}
* P-256 generator. */
static int ecp_nistz256_is_affine_G(const EC_POINT * generator)
{
- return (generator->X.top == P256_LIMBS) &&
- (generator->Y.top == P256_LIMBS) &&
- (generator->Z.top == (P256_LIMBS - P256_LIMBS / 8)) &&
- is_equal(generator->X.d, def_xG) &&
- is_equal(generator->Y.d, def_yG) && is_one(generator->Z.d);
+ return (bn_get_top(generator->X) == P256_LIMBS) &&
+ (bn_get_top(generator->Y) == P256_LIMBS) &&
+ (bn_get_top(generator->Z) == (P256_LIMBS - P256_LIMBS / 8)) &&
+ is_equal(bn_get_words(generator->X), def_xG) &&
+ is_equal(bn_get_words(generator->Y), def_yG) &&
+ is_one(bn_get_words(generator->Z));
}
static int ecp_nistz256_mult_precompute(EC_GROUP * group, BN_CTX * ctx)
* ec_GFp_simple_points_make_affine and make multiple
* points affine at the same time. */
ec_GFp_simple_make_affine(group, P, ctx);
- ecp_nistz256_bignum_to_field_elem(temp.X, &P->X);
- ecp_nistz256_bignum_to_field_elem(temp.Y, &P->Y);
+ ecp_nistz256_bignum_to_field_elem(temp.X, P->X);
+ ecp_nistz256_bignum_to_field_elem(temp.Y, P->Y);
ecp_nistz256_scatter_w7(preComputedTable[j], &temp, k);
for (i = 0; i < 7; i++)
ec_GFp_simple_dbl(group, P, P, ctx);
const P256_POINT_AFFINE * in,
BN_CTX * ctx)
{
- BIGNUM x, y;
+ BIGNUM *x, *y;
BN_ULONG d_x[P256_LIMBS], d_y[P256_LIMBS];
int ret = 0;
+ x = BN_new();
+ if(!x)
+ return 0;
+ y = BN_new();
+ if(!y) {
+ BN_free(x);
+ return 0;
+ }
memcpy(d_x, in->X, sizeof(d_x));
- x.d = d_x;
- x.dmax = x.top = P256_LIMBS;
- x.neg = 0;
- x.flags = BN_FLG_STATIC_DATA;
+ bn_set_static_words(x, d_x, P256_LIMBS);
memcpy(d_y, in->Y, sizeof(d_y));
- y.d = d_y;
- y.dmax = y.top = P256_LIMBS;
- y.neg = 0;
- y.flags = BN_FLG_STATIC_DATA;
+ bn_set_static_words(y, d_y, P256_LIMBS);
+
+ ret = EC_POINT_set_affine_coordinates_GFp(group, out, x, y, ctx);
- ret = EC_POINT_set_affine_coordinates_GFp(group, out, &x, &y, ctx);
+ if(x) BN_free(x);
+ if(y) BN_free(y);
return ret;
}
}
/* Need 256 bits for space for all coordinates. */
- bn_wexpand(&r->X, P256_LIMBS);
- bn_wexpand(&r->Y, P256_LIMBS);
- bn_wexpand(&r->Z, P256_LIMBS);
- r->X.top = P256_LIMBS;
- r->Y.top = P256_LIMBS;
- r->Z.top = P256_LIMBS;
+ bn_wexpand(r->X, P256_LIMBS);
+ bn_wexpand(r->Y, P256_LIMBS);
+ bn_wexpand(r->Z, P256_LIMBS);
+ bn_set_top(r->X, P256_LIMBS);
+ bn_set_top(r->Y, P256_LIMBS);
+ bn_set_top(r->Z, P256_LIMBS);
if (scalar) {
generator = EC_GROUP_get0_generator(group);
if ((tmp_scalar = BN_CTX_get(ctx)) == NULL)
goto err;
- if (!BN_nnmod(tmp_scalar, scalar, &group->order, ctx)) {
+ if (!BN_nnmod(tmp_scalar, scalar, group->order, ctx)) {
ECerr(EC_F_ECP_NISTZ256_POINTS_MUL, ERR_R_BN_LIB);
goto err;
}
scalar = tmp_scalar;
}
- for (i = 0; i < scalar->top * BN_BYTES; i += BN_BYTES) {
- BN_ULONG d = scalar->d[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];
p_str[i + 0] = d & 0xff;
p_str[i + 1] = (d >> 8) & 0xff;
OPENSSL_free(scalars);
}
- memcpy(r->X.d, p.p.X, sizeof(p.p.X));
- memcpy(r->Y.d, p.p.Y, sizeof(p.p.Y));
- memcpy(r->Z.d, p.p.Z, sizeof(p.p.Z));
- bn_correct_top(&r->X);
- bn_correct_top(&r->Y);
- bn_correct_top(&r->Z);
+ bn_set_data(r->X, p.p.X, sizeof(p.p.X));
+ bn_set_data(r->Y, p.p.Y, sizeof(p.p.Y));
+ bn_set_data(r->Z, p.p.Z, sizeof(p.p.Z));
+ bn_correct_top(r->X);
+ bn_correct_top(r->Y);
+ bn_correct_top(r->Z);
ret = 1;
return 0;
}
- if (!ecp_nistz256_bignum_to_field_elem(point_x, &point->X) ||
- !ecp_nistz256_bignum_to_field_elem(point_y, &point->Y) ||
- !ecp_nistz256_bignum_to_field_elem(point_z, &point->Z)) {
+ if (!ecp_nistz256_bignum_to_field_elem(point_x, point->X) ||
+ !ecp_nistz256_bignum_to_field_elem(point_y, point->Y) ||
+ !ecp_nistz256_bignum_to_field_elem(point_z, point->Z)) {
ECerr(EC_F_ECP_NISTZ256_GET_AFFINE, EC_R_COORDINATES_OUT_OF_RANGE);
return 0;
}
if (x != NULL) {
bn_wexpand(x, P256_LIMBS);
- x->top = P256_LIMBS;
- ecp_nistz256_from_mont(x->d, x_aff);
+ bn_set_top(x, P256_LIMBS);
+ ecp_nistz256_from_mont(bn_get_words(x), x_aff);
bn_correct_top(x);
}
ecp_nistz256_mul_mont(z_inv3, z_inv3, z_inv2);
ecp_nistz256_mul_mont(y_aff, z_inv3, point_y);
bn_wexpand(y, P256_LIMBS);
- y->top = P256_LIMBS;
- ecp_nistz256_from_mont(y->d, y_aff);
+ bn_set_top(y, P256_LIMBS);
+ ecp_nistz256_from_mont(bn_get_words(y), y_aff);
bn_correct_top(y);
}
projects / thirdparty / openssl.git / blobdiff