DIR= ec
TOP= ../..
CC= cc
-INCLUDES= -I.. -I$(TOP) -I../../include
+INCLUDES= -I.. -I$(TOP) -I../include -I../../include
CFLAG=-g
MAKEFILE= Makefile
AR= ar r
ec2_mult.o: ../../include/openssl/obj_mac.h ../../include/openssl/opensslconf.h
ec2_mult.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ec2_mult.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
-ec2_mult.o: ../../include/openssl/symhacks.h ec2_mult.c ec_lcl.h
+ec2_mult.o: ../../include/openssl/symhacks.h ../include/internal/bn_int.h
+ec2_mult.o: ec2_mult.c ec_lcl.h
ec2_oct.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ec2_oct.o: ../../include/openssl/bn.h ../../include/openssl/crypto.h
ec2_oct.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ec2_smpl.o: ../../include/openssl/obj_mac.h ../../include/openssl/opensslconf.h
ec2_smpl.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ec2_smpl.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
-ec2_smpl.o: ../../include/openssl/symhacks.h ec2_smpl.c ec_lcl.h
+ec2_smpl.o: ../../include/openssl/symhacks.h ../include/internal/bn_int.h
+ec2_smpl.o: ec2_smpl.c ec_lcl.h
ec_ameth.o: ../../e_os.h ../../include/openssl/asn1.h
ec_ameth.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
ec_ameth.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
ec_mult.o: ../../include/openssl/obj_mac.h ../../include/openssl/opensslconf.h
ec_mult.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ec_mult.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
-ec_mult.o: ../../include/openssl/symhacks.h ec_lcl.h ec_mult.c
+ec_mult.o: ../../include/openssl/symhacks.h ../include/internal/bn_int.h
+ec_mult.o: ec_lcl.h ec_mult.c
ec_oct.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ec_oct.o: ../../include/openssl/bn.h ../../include/openssl/crypto.h
ec_oct.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
#include <openssl/err.h>
+#include "internal/bn_int.h"
#include "ec_lcl.h"
#ifndef OPENSSL_NO_EC2M
if (!group->meth->field_mul(group, z, x, t1, ctx)) goto err;
if (!group->meth->field_sqr(group, x, x, ctx)) goto err;
if (!group->meth->field_sqr(group, t1, t1, ctx)) goto err;
- if (!group->meth->field_mul(group, t1, &group->b, t1, ctx)) goto err;
+ if (!group->meth->field_mul(group, t1, group->b, t1, ctx)) goto err;
if (!BN_GF2m_add(x, x, t1)) goto err;
ret = 1;
z1 = BN_CTX_get(ctx);
if (z1 == NULL) goto err;
- x2 = &r->X;
- z2 = &r->Y;
+ x2 = r->X;
+ z2 = r->Y;
- bn_wexpand(x1, group->field.top);
- bn_wexpand(z1, group->field.top);
- bn_wexpand(x2, group->field.top);
- bn_wexpand(z2, group->field.top);
+ bn_wexpand(x1, bn_get_top(group->field));
+ bn_wexpand(z1, bn_get_top(group->field));
+ bn_wexpand(x2, bn_get_top(group->field));
+ bn_wexpand(z2, bn_get_top(group->field));
- if (!BN_GF2m_mod_arr(x1, &point->X, group->poly)) goto err; /* x1 = x */
+ if (!BN_GF2m_mod_arr(x1, point->X, group->poly)) goto err; /* x1 = x */
if (!BN_one(z1)) goto err; /* z1 = 1 */
if (!group->meth->field_sqr(group, z2, x1, ctx)) goto err; /* z2 = x1^2 = x^2 */
if (!group->meth->field_sqr(group, x2, z2, ctx)) goto err;
- if (!BN_GF2m_add(x2, x2, &group->b)) goto err; /* x2 = x^4 + b */
+ if (!BN_GF2m_add(x2, x2, group->b)) goto err; /* x2 = x^4 + b */
/* find top most bit and go one past it */
- i = scalar->top - 1;
+ i = bn_get_top(scalar) - 1;
mask = BN_TBIT;
- word = scalar->d[i];
+ word = bn_get_words(scalar)[i];
while (!(word & mask)) mask >>= 1;
mask >>= 1;
/* if top most bit was at word break, go to next word */
for (; i >= 0; i--)
{
- word = scalar->d[i];
+ word = bn_get_words(scalar)[i];
while (mask)
{
- BN_consttime_swap(word & mask, x1, x2, group->field.top);
- BN_consttime_swap(word & mask, z1, z2, group->field.top);
- if (!gf2m_Madd(group, &point->X, x2, z2, x1, z1, ctx)) goto err;
+ BN_consttime_swap(word & mask, x1, x2, bn_get_top(group->field));
+ BN_consttime_swap(word & mask, z1, z2, bn_get_top(group->field));
+ if (!gf2m_Madd(group, point->X, x2, z2, x1, z1, ctx)) goto err;
if (!gf2m_Mdouble(group, x1, z1, ctx)) goto err;
- BN_consttime_swap(word & mask, x1, x2, group->field.top);
- BN_consttime_swap(word & mask, z1, z2, group->field.top);
+ BN_consttime_swap(word & mask, x1, x2, bn_get_top(group->field));
+ BN_consttime_swap(word & mask, z1, z2, bn_get_top(group->field));
mask >>= 1;
}
mask = BN_TBIT;
}
/* convert out of "projective" coordinates */
- i = gf2m_Mxy(group, &point->X, &point->Y, x1, z1, x2, z2, ctx);
+ i = gf2m_Mxy(group, point->X, point->Y, x1, z1, x2, z2, ctx);
if (i == 0) goto err;
else if (i == 1)
{
}
else
{
- if (!BN_one(&r->Z)) goto err;
+ if (!BN_one(r->Z)) goto err;
r->Z_is_one = 1;
}
/* GF(2^m) field elements should always have BIGNUM::neg = 0 */
- BN_set_negative(&r->X, 0);
- BN_set_negative(&r->Y, 0);
+ BN_set_negative(r->X, 0);
+ BN_set_negative(r->Y, 0);
ret = 1;
if (!BN_GF2m_mod_arr(x, x_, group->poly)) goto err;
if (BN_is_zero(x))
{
- if (!BN_GF2m_mod_sqrt_arr(y, &group->b, group->poly, ctx)) goto err;
+ if (!BN_GF2m_mod_sqrt_arr(y, group->b, group->poly, ctx)) goto err;
}
else
{
if (!group->meth->field_sqr(group, tmp, x, ctx)) goto err;
- if (!group->meth->field_div(group, tmp, &group->b, tmp, ctx)) goto err;
- if (!BN_GF2m_add(tmp, &group->a, tmp)) goto err;
+ if (!group->meth->field_div(group, tmp, group->b, tmp, ctx)) goto err;
+ if (!BN_GF2m_add(tmp, group->a, tmp)) goto err;
if (!BN_GF2m_add(tmp, x, tmp)) goto err;
if (!BN_GF2m_mod_solve_quad_arr(z, tmp, group->poly, ctx))
{
if (yxi == NULL) goto err;
if (!BN_bin2bn(buf + 1, field_len, x)) goto err;
- if (BN_ucmp(x, &group->field) >= 0)
+ if (BN_ucmp(x, group->field) >= 0)
{
ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);
goto err;
else
{
if (!BN_bin2bn(buf + 1 + field_len, field_len, y)) goto err;
- if (BN_ucmp(y, &group->field) >= 0)
+ if (BN_ucmp(y, group->field) >= 0)
{
ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);
goto err;
#include <openssl/err.h>
+#include "internal/bn_int.h"
#include "ec_lcl.h"
#ifndef OPENSSL_NO_EC2M
*/
int ec_GF2m_simple_group_init(EC_GROUP *group)
{
- BN_init(&group->field);
- BN_init(&group->a);
- BN_init(&group->b);
+ group->field = BN_new();
+ group->a = BN_new();
+ group->b = BN_new();
+
+ if(!group->field || !group->a || !group->b)
+ {
+ if(group->field) BN_free(group->field);
+ if(group->a) BN_free(group->a);
+ if(group->b) BN_free(group->b);
+ return 0;
+ }
return 1;
}
*/
void ec_GF2m_simple_group_finish(EC_GROUP *group)
{
- BN_free(&group->field);
- BN_free(&group->a);
- BN_free(&group->b);
+ BN_free(group->field);
+ BN_free(group->a);
+ BN_free(group->b);
}
*/
void ec_GF2m_simple_group_clear_finish(EC_GROUP *group)
{
- BN_clear_free(&group->field);
- BN_clear_free(&group->a);
- BN_clear_free(&group->b);
+ BN_clear_free(group->field);
+ BN_clear_free(group->a);
+ BN_clear_free(group->b);
group->poly[0] = 0;
group->poly[1] = 0;
group->poly[2] = 0;
*/
int ec_GF2m_simple_group_copy(EC_GROUP *dest, const EC_GROUP *src)
{
- int i;
- if (!BN_copy(&dest->field, &src->field)) return 0;
- if (!BN_copy(&dest->a, &src->a)) return 0;
- if (!BN_copy(&dest->b, &src->b)) return 0;
+ if (!BN_copy(dest->field, src->field)) return 0;
+ if (!BN_copy(dest->a, src->a)) return 0;
+ if (!BN_copy(dest->b, src->b)) return 0;
dest->poly[0] = src->poly[0];
dest->poly[1] = src->poly[1];
dest->poly[2] = src->poly[2];
dest->poly[3] = src->poly[3];
dest->poly[4] = src->poly[4];
dest->poly[5] = src->poly[5];
- if (bn_wexpand(&dest->a, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) return 0;
- if (bn_wexpand(&dest->b, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) return 0;
- for (i = dest->a.top; i < dest->a.dmax; i++) dest->a.d[i] = 0;
- for (i = dest->b.top; i < dest->b.dmax; i++) dest->b.d[i] = 0;
+ if (bn_wexpand(dest->a, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) return 0;
+ if (bn_wexpand(dest->b, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) return 0;
+ bn_set_all_zero(dest->a);
+ bn_set_all_zero(dest->b);
return 1;
}
int ret = 0, i;
/* group->field */
- if (!BN_copy(&group->field, p)) goto err;
- i = BN_GF2m_poly2arr(&group->field, group->poly, 6) - 1;
+ if (!BN_copy(group->field, p)) goto err;
+ i = BN_GF2m_poly2arr(group->field, group->poly, 6) - 1;
if ((i != 5) && (i != 3))
{
ECerr(EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE, EC_R_UNSUPPORTED_FIELD);
}
/* group->a */
- if (!BN_GF2m_mod_arr(&group->a, a, group->poly)) goto err;
- if(bn_wexpand(&group->a, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err;
- for (i = group->a.top; i < group->a.dmax; i++) group->a.d[i] = 0;
+ if (!BN_GF2m_mod_arr(group->a, a, group->poly)) goto err;
+ if(bn_wexpand(group->a, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err;
+ bn_set_all_zero(group->a);
/* group->b */
- if (!BN_GF2m_mod_arr(&group->b, b, group->poly)) goto err;
- if(bn_wexpand(&group->b, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err;
- for (i = group->b.top; i < group->b.dmax; i++) group->b.d[i] = 0;
+ if (!BN_GF2m_mod_arr(group->b, b, group->poly)) goto err;
+ if(bn_wexpand(group->b, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err;
+ bn_set_all_zero(group->b);
ret = 1;
err:
if (p != NULL)
{
- if (!BN_copy(p, &group->field)) return 0;
+ if (!BN_copy(p, group->field)) return 0;
}
if (a != NULL)
{
- if (!BN_copy(a, &group->a)) goto err;
+ if (!BN_copy(a, group->a)) goto err;
}
if (b != NULL)
{
- if (!BN_copy(b, &group->b)) goto err;
+ if (!BN_copy(b, group->b)) goto err;
}
ret = 1;
/* Gets the degree of the field. For a curve over GF(2^m) this is the value m. */
int ec_GF2m_simple_group_get_degree(const EC_GROUP *group)
{
- return BN_num_bits(&group->field)-1;
+ return BN_num_bits(group->field)-1;
}
b = BN_CTX_get(ctx);
if (b == NULL) goto err;
- if (!BN_GF2m_mod_arr(b, &group->b, group->poly)) goto err;
+ if (!BN_GF2m_mod_arr(b, group->b, group->poly)) goto err;
/* check the discriminant:
* y^2 + x*y = x^3 + a*x^2 + b is an elliptic curve <=> b != 0 (mod p)
/* Initializes an EC_POINT. */
int ec_GF2m_simple_point_init(EC_POINT *point)
{
- BN_init(&point->X);
- BN_init(&point->Y);
- BN_init(&point->Z);
+ point->X = BN_new();
+ point->Y = BN_new();
+ point->Z = BN_new();
+
+ if(!point->X || !point->Y || !point->Z)
+ {
+ if(point->X) BN_free(point->X);
+ if(point->Y) BN_free(point->Y);
+ if(point->Z) BN_free(point->Z);
+ return 0;
+ }
return 1;
}
/* Frees an EC_POINT. */
void ec_GF2m_simple_point_finish(EC_POINT *point)
{
- BN_free(&point->X);
- BN_free(&point->Y);
- BN_free(&point->Z);
+ BN_free(point->X);
+ BN_free(point->Y);
+ BN_free(point->Z);
}
/* Clears and frees an EC_POINT. */
void ec_GF2m_simple_point_clear_finish(EC_POINT *point)
{
- BN_clear_free(&point->X);
- BN_clear_free(&point->Y);
- BN_clear_free(&point->Z);
+ BN_clear_free(point->X);
+ BN_clear_free(point->Y);
+ BN_clear_free(point->Z);
point->Z_is_one = 0;
}
/* Copy the contents of one EC_POINT into another. Assumes dest is initialized. */
int ec_GF2m_simple_point_copy(EC_POINT *dest, const EC_POINT *src)
{
- if (!BN_copy(&dest->X, &src->X)) return 0;
- if (!BN_copy(&dest->Y, &src->Y)) return 0;
- if (!BN_copy(&dest->Z, &src->Z)) return 0;
+ if (!BN_copy(dest->X, src->X)) return 0;
+ if (!BN_copy(dest->Y, src->Y)) return 0;
+ if (!BN_copy(dest->Z, src->Z)) return 0;
dest->Z_is_one = src->Z_is_one;
return 1;
int ec_GF2m_simple_point_set_to_infinity(const EC_GROUP *group, EC_POINT *point)
{
point->Z_is_one = 0;
- BN_zero(&point->Z);
+ BN_zero(point->Z);
return 1;
}
return 0;
}
- if (!BN_copy(&point->X, x)) goto err;
- BN_set_negative(&point->X, 0);
- if (!BN_copy(&point->Y, y)) goto err;
- BN_set_negative(&point->Y, 0);
- if (!BN_copy(&point->Z, BN_value_one())) goto err;
- BN_set_negative(&point->Z, 0);
+ if (!BN_copy(point->X, x)) goto err;
+ BN_set_negative(point->X, 0);
+ if (!BN_copy(point->Y, y)) goto err;
+ BN_set_negative(point->Y, 0);
+ if (!BN_copy(point->Z, BN_value_one())) goto err;
+ BN_set_negative(point->Z, 0);
point->Z_is_one = 1;
ret = 1;
return 0;
}
- if (BN_cmp(&point->Z, BN_value_one()))
+ if (BN_cmp(point->Z, BN_value_one()))
{
ECerr(EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
if (x != NULL)
{
- if (!BN_copy(x, &point->X)) goto err;
+ if (!BN_copy(x, point->X)) goto err;
BN_set_negative(x, 0);
}
if (y != NULL)
{
- if (!BN_copy(y, &point->Y)) goto err;
+ if (!BN_copy(y, point->Y)) goto err;
BN_set_negative(y, 0);
}
ret = 1;
if (a->Z_is_one)
{
- if (!BN_copy(x0, &a->X)) goto err;
- if (!BN_copy(y0, &a->Y)) goto err;
+ if (!BN_copy(x0, a->X)) goto err;
+ if (!BN_copy(y0, a->Y)) goto err;
}
else
{
}
if (b->Z_is_one)
{
- if (!BN_copy(x1, &b->X)) goto err;
- if (!BN_copy(y1, &b->Y)) goto err;
+ if (!BN_copy(x1, b->X)) goto err;
+ if (!BN_copy(y1, b->Y)) goto err;
}
else
{
if (!BN_GF2m_add(s, y0, y1)) goto err;
if (!group->meth->field_div(group, s, s, t, ctx)) goto err;
if (!group->meth->field_sqr(group, x2, s, ctx)) goto err;
- if (!BN_GF2m_add(x2, x2, &group->a)) goto err;
+ if (!BN_GF2m_add(x2, x2, group->a)) goto err;
if (!BN_GF2m_add(x2, x2, s)) goto err;
if (!BN_GF2m_add(x2, x2, t)) goto err;
}
if (!group->meth->field_sqr(group, x2, s, ctx)) goto err;
if (!BN_GF2m_add(x2, x2, s)) goto err;
- if (!BN_GF2m_add(x2, x2, &group->a)) goto err;
+ if (!BN_GF2m_add(x2, x2, group->a)) goto err;
}
if (!BN_GF2m_add(y2, x1, x2)) goto err;
int ec_GF2m_simple_invert(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
{
- if (EC_POINT_is_at_infinity(group, point) || BN_is_zero(&point->Y))
+ if (EC_POINT_is_at_infinity(group, point) || BN_is_zero(point->Y))
/* point is its own inverse */
return 1;
if (!EC_POINT_make_affine(group, point, ctx)) return 0;
- return BN_GF2m_add(&point->Y, &point->X, &point->Y);
+ return BN_GF2m_add(point->Y, point->X, point->Y);
}
/* Indicates whether the given point is the point at infinity. */
int ec_GF2m_simple_is_at_infinity(const EC_GROUP *group, const EC_POINT *point)
{
- return BN_is_zero(&point->Z);
+ return BN_is_zero(point->Z);
}
* <=> x^3 + a*x^2 + x*y + b + y^2 = 0
* <=> ((x + a) * x + y ) * x + b + y^2 = 0
*/
- if (!BN_GF2m_add(lh, &point->X, &group->a)) goto err;
- if (!field_mul(group, lh, lh, &point->X, ctx)) goto err;
- if (!BN_GF2m_add(lh, lh, &point->Y)) goto err;
- if (!field_mul(group, lh, lh, &point->X, ctx)) goto err;
- if (!BN_GF2m_add(lh, lh, &group->b)) goto err;
- if (!field_sqr(group, y2, &point->Y, ctx)) goto err;
+ if (!BN_GF2m_add(lh, point->X, group->a)) goto err;
+ if (!field_mul(group, lh, lh, point->X, ctx)) goto err;
+ if (!BN_GF2m_add(lh, lh, point->Y)) goto err;
+ if (!field_mul(group, lh, lh, point->X, ctx)) goto err;
+ if (!BN_GF2m_add(lh, lh, group->b)) goto err;
+ if (!field_sqr(group, y2, point->Y, ctx)) goto err;
if (!BN_GF2m_add(lh, lh, y2)) goto err;
ret = BN_is_zero(lh);
err:
if (a->Z_is_one && b->Z_is_one)
{
- return ((BN_cmp(&a->X, &b->X) == 0) && BN_cmp(&a->Y, &b->Y) == 0) ? 0 : 1;
+ return ((BN_cmp(a->X, b->X) == 0) && BN_cmp(a->Y, b->Y) == 0) ? 0 : 1;
}
if (ctx == NULL)
if (y == NULL) goto err;
if (!EC_POINT_get_affine_coordinates_GF2m(group, point, x, y, ctx)) goto err;
- if (!BN_copy(&point->X, x)) goto err;
- if (!BN_copy(&point->Y, y)) goto err;
- if (!BN_one(&point->Z)) goto err;
+ if (!BN_copy(point->X, x)) goto err;
+ if (!BN_copy(point->Y, y)) goto err;
+ if (!BN_one(point->Z)) goto err;
ret = 1;
/* Wrapper to simple binary polynomial field division implementation. */
int ec_GF2m_simple_field_div(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
{
- return BN_GF2m_mod_div(r, a, b, &group->field, ctx);
+ return BN_GF2m_mod_div(r, a, b, group->field, ctx);
}
#endif
goto err;
}
/* testing whether pub_key * order is the point at infinity */
- order = &eckey->group->order;
+ order = eckey->group->order;
if (BN_is_zero(order))
{
ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_INVALID_GROUP_ORDER);
* field order: if not values are out of range.
*/
if (BN_cmp(x, tx) || BN_cmp(y, ty)
- || (BN_cmp(x, &key->group->field) >= 0)
- || (BN_cmp(y, &key->group->field) >= 0))
+ || (BN_cmp(x, key->group->field) >= 0)
+ || (BN_cmp(y, key->group->field) >= 0))
{
ECerr(EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES,
EC_R_COORDINATES_OUT_OF_RANGE);
const EC_METHOD *meth;
EC_POINT *generator; /* optional */
- BIGNUM order, cofactor;
+ BIGNUM *order, *cofactor;
int curve_name;/* optional NID for named curve */
int asn1_flag; /* flag to control the asn1 encoding */
/* The following members are handled by the method functions,
* even if they appear generic */
- BIGNUM field; /* Field specification.
+ BIGNUM *field; /* Field specification.
* For curves over GF(p), this is the modulus;
* for curves over GF(2^m), this is the
* irreducible polynomial defining the field.
* non-zero terms.
*/
- BIGNUM a, b; /* Curve coefficients.
+ BIGNUM *a, *b; /* Curve coefficients.
* (Here the assumption is that BIGNUMs can be used
* or abused for all kinds of fields, not just GF(p).)
* For characteristic > 3, the curve is defined
/* All members except 'meth' are handled by the method functions,
* even if they appear generic */
- BIGNUM X;
- BIGNUM Y;
- BIGNUM Z; /* Jacobian projective coordinates:
+ BIGNUM *X;
+ BIGNUM *Y;
+ BIGNUM *Z; /* Jacobian projective coordinates:
* (X, Y, Z) represents (X/Z^2, Y/Z^3) if Z != 0 */
int Z_is_one; /* enable optimized point arithmetics for special case */
} /* EC_POINT */;
ret->mont_data = NULL;
ret->generator = NULL;
- BN_init(&ret->order);
- BN_init(&ret->cofactor);
+ ret->order = BN_new();
+ ret->cofactor = NULL;
+ if(!ret->order) goto err;
+ ret->cofactor = BN_new();
+ if(!ret->cofactor) goto err;
ret->curve_name = 0;
ret->asn1_flag = 0;
ret->seed = NULL;
ret->seed_len = 0;
- if (!meth->group_init(ret))
- {
- OPENSSL_free(ret);
- return NULL;
- }
+ if (!meth->group_init(ret)) goto err;
return ret;
+err:
+ if(ret->order) BN_free(ret->order);
+ if(ret->cofactor) BN_free(ret->cofactor);
+ OPENSSL_free(ret);
+ return NULL;
}
if (group->generator != NULL)
EC_POINT_free(group->generator);
- BN_free(&group->order);
- BN_free(&group->cofactor);
+ BN_free(group->order);
+ BN_free(group->cofactor);
if (group->seed)
OPENSSL_free(group->seed);
if (group->generator != NULL)
EC_POINT_clear_free(group->generator);
- BN_clear_free(&group->order);
- BN_clear_free(&group->cofactor);
+ BN_clear_free(group->order);
+ BN_clear_free(group->cofactor);
if (group->seed)
{
}
}
- if (!BN_copy(&dest->order, &src->order)) return 0;
- if (!BN_copy(&dest->cofactor, &src->cofactor)) return 0;
+ if (!BN_copy(dest->order, src->order)) return 0;
+ if (!BN_copy(dest->cofactor, src->cofactor)) return 0;
dest->curve_name = src->curve_name;
dest->asn1_flag = src->asn1_flag;
if (!EC_POINT_copy(group->generator, generator)) return 0;
if (order != NULL)
- { if (!BN_copy(&group->order, order)) return 0; }
+ { if (!BN_copy(group->order, order)) return 0; }
else
- BN_zero(&group->order);
+ BN_zero(group->order);
if (cofactor != NULL)
- { if (!BN_copy(&group->cofactor, cofactor)) return 0; }
+ { if (!BN_copy(group->cofactor, cofactor)) return 0; }
else
- BN_zero(&group->cofactor);
+ BN_zero(group->cofactor);
/* We ignore the return value because some groups have an order with
* factors of two, which makes the Montgomery setup fail.
int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx)
{
- if (!BN_copy(order, &group->order))
+ if (!BN_copy(order, group->order))
return 0;
return !BN_is_zero(order);
int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx)
{
- if (!BN_copy(cofactor, &group->cofactor))
+ if (!BN_copy(cofactor, group->cofactor))
return 0;
- return !BN_is_zero(&group->cofactor);
+ return !BN_is_zero(group->cofactor);
}
if (!group->mont_data)
goto err;
- if (!BN_MONT_CTX_set(group->mont_data, &group->order, ctx))
+ if (!BN_MONT_CTX_set(group->mont_data, group->order, ctx))
{
BN_MONT_CTX_free(group->mont_data);
group->mont_data = NULL;
#include <string.h>
-
#include <openssl/err.h>
+#include "internal/bn_int.h"
#include "ec_lcl.h"
-/* Determine the modified width-(w+1) Non-Adjacent Form (wNAF) of 'scalar'.
- * This is an array r[] of values that are either zero or odd with an
- * absolute value less than 2^w satisfying
- * scalar = \sum_j r[j]*2^j
- * where at most one of any w+1 consecutive digits is non-zero
- * with the exception that the most significant digit may be only
- * w-1 zeros away from that next non-zero digit.
- */
-static signed char *compute_wNAF(const BIGNUM *scalar, int w, size_t *ret_len)
- {
- int window_val;
- int ok = 0;
- signed char *r = NULL;
- int sign = 1;
- int bit, next_bit, mask;
- size_t len = 0, j;
-
- if (BN_is_zero(scalar))
- {
- r = OPENSSL_malloc(1);
- if (!r)
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- r[0] = 0;
- *ret_len = 1;
- return r;
- }
-
- if (w <= 0 || w > 7) /* 'signed char' can represent integers with absolute values less than 2^7 */
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- bit = 1 << w; /* at most 128 */
- next_bit = bit << 1; /* at most 256 */
- mask = next_bit - 1; /* at most 255 */
-
- if (BN_is_negative(scalar))
- {
- sign = -1;
- }
-
- if (scalar->d == NULL || scalar->top == 0)
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR);
- goto err;
- }
-
- len = BN_num_bits(scalar);
- r = OPENSSL_malloc(len + 1); /* modified wNAF may be one digit longer than binary representation
- * (*ret_len will be set to the actual length, i.e. at most
- * BN_num_bits(scalar) + 1) */
- if (r == NULL)
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- window_val = scalar->d[0] & mask;
- j = 0;
- while ((window_val != 0) || (j + w + 1 < len)) /* if j+w+1 >= len, window_val will not increase */
- {
- int digit = 0;
-
- /* 0 <= window_val <= 2^(w+1) */
-
- if (window_val & 1)
- {
- /* 0 < window_val < 2^(w+1) */
-
- if (window_val & bit)
- {
- digit = window_val - next_bit; /* -2^w < digit < 0 */
-
-#if 1 /* modified wNAF */
- if (j + w + 1 >= len)
- {
- /* special case for generating modified wNAFs:
- * no new bits will be added into window_val,
- * so using a positive digit here will decrease
- * the total length of the representation */
-
- digit = window_val & (mask >> 1); /* 0 < digit < 2^w */
- }
-#endif
- }
- else
- {
- digit = window_val; /* 0 < digit < 2^w */
- }
-
- if (digit <= -bit || digit >= bit || !(digit & 1))
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR);
- goto err;
- }
-
- window_val -= digit;
-
- /* now window_val is 0 or 2^(w+1) in standard wNAF generation;
- * for modified window NAFs, it may also be 2^w
- */
- if (window_val != 0 && window_val != next_bit && window_val != bit)
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- }
-
- r[j++] = sign * digit;
-
- window_val >>= 1;
- window_val += bit * BN_is_bit_set(scalar, j + w);
-
- if (window_val > next_bit)
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- }
-
- if (j > len + 1)
- {
- ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- len = j;
- ok = 1;
- err:
- if (!ok)
- {
- OPENSSL_free(r);
- r = NULL;
- }
- if (ok)
- *ret_len = len;
- return r;
- }
/* TODO: table should be optimised for the wNAF-based implementation,
wsize[i] = EC_window_bits_for_scalar_size(bits);
num_val += (size_t)1 << (wsize[i] - 1);
wNAF[i + 1] = NULL; /* make sure we always have a pivot */
- wNAF[i] = compute_wNAF((i < num ? scalars[i] : scalar), wsize[i], &wNAF_len[i]);
+ wNAF[i] = bn_compute_wNAF((i < num ? scalars[i] : scalar), wsize[i], &wNAF_len[i]);
if (wNAF[i] == NULL)
goto err;
if (wNAF_len[i] > max_len)
/* use the window size for which we have precomputation */
wsize[num] = pre_comp->w;
- tmp_wNAF = compute_wNAF(scalar, wsize[num], &tmp_len);
+ tmp_wNAF = bn_compute_wNAF(scalar, wsize[num], &tmp_len);
if (!tmp_wNAF)
goto err;
if (!ec_key->group)
return -2;
/* If cofactor is 1 cofactor mode does nothing */
- if (BN_is_one(&ec_key->group->cofactor))
+ if (BN_is_one(ec_key->group->cofactor))
return 1;
if (!dctx->co_key)
{
if ((ctx_new = ctx = BN_CTX_new()) == NULL) goto err;
if (!BN_mul(r, a, b, ctx)) goto err;
- if (!group->field_mod_func(r, r, &group->field, ctx))
+ if (!group->field_mod_func(r, r, group->field, ctx))
goto err;
ret=1;
if ((ctx_new = ctx = BN_CTX_new()) == NULL) goto err;
if (!BN_sqr(r, a, ctx)) goto err;
- if (!group->field_mod_func(r, r, &group->field, ctx))
+ if (!group->field_mod_func(r, r, group->field, ctx))
goto err;
ret=1;
#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);
}
*/
/* tmp1 := x^3 */
- if (!BN_nnmod(x, x_, &group->field,ctx)) goto err;
+ if (!BN_nnmod(x, x_, group->field,ctx)) goto err;
if (group->meth->field_decode == 0)
{
/* field_{sqr,mul} work on standard representation */
}
else
{
- if (!BN_mod_sqr(tmp2, x_, &group->field, ctx)) goto err;
- if (!BN_mod_mul(tmp1, tmp2, x_, &group->field, ctx)) goto err;
+ if (!BN_mod_sqr(tmp2, x_, group->field, ctx)) goto err;
+ if (!BN_mod_mul(tmp1, tmp2, x_, group->field, ctx)) goto err;
}
/* tmp1 := tmp1 + a*x */
if (group->a_is_minus3)
{
- if (!BN_mod_lshift1_quick(tmp2, x, &group->field)) goto err;
- if (!BN_mod_add_quick(tmp2, tmp2, x, &group->field)) goto err;
- if (!BN_mod_sub_quick(tmp1, tmp1, tmp2, &group->field)) goto err;
+ if (!BN_mod_lshift1_quick(tmp2, x, group->field)) goto err;
+ if (!BN_mod_add_quick(tmp2, tmp2, x, group->field)) goto err;
+ if (!BN_mod_sub_quick(tmp1, tmp1, tmp2, group->field)) goto err;
}
else
{
if (group->meth->field_decode)
{
- if (!group->meth->field_decode(group, tmp2, &group->a, ctx)) goto err;
- if (!BN_mod_mul(tmp2, tmp2, x, &group->field, ctx)) goto err;
+ if (!group->meth->field_decode(group, tmp2, group->a, ctx)) goto err;
+ if (!BN_mod_mul(tmp2, tmp2, x, group->field, ctx)) goto err;
}
else
{
/* field_mul works on standard representation */
- if (!group->meth->field_mul(group, tmp2, &group->a, x, ctx)) goto err;
+ if (!group->meth->field_mul(group, tmp2, group->a, x, ctx)) goto err;
}
- if (!BN_mod_add_quick(tmp1, tmp1, tmp2, &group->field)) goto err;
+ if (!BN_mod_add_quick(tmp1, tmp1, tmp2, group->field)) goto err;
}
/* tmp1 := tmp1 + b */
if (group->meth->field_decode)
{
- if (!group->meth->field_decode(group, tmp2, &group->b, ctx)) goto err;
- if (!BN_mod_add_quick(tmp1, tmp1, tmp2, &group->field)) goto err;
+ if (!group->meth->field_decode(group, tmp2, group->b, ctx)) goto err;
+ if (!BN_mod_add_quick(tmp1, tmp1, tmp2, group->field)) goto err;
}
else
{
- if (!BN_mod_add_quick(tmp1, tmp1, &group->b, &group->field)) goto err;
+ if (!BN_mod_add_quick(tmp1, tmp1, group->b, group->field)) goto err;
}
- if (!BN_mod_sqrt(y, tmp1, &group->field, ctx))
+ if (!BN_mod_sqrt(y, tmp1, group->field, ctx))
{
unsigned long err = ERR_peek_last_error();
{
int kron;
- kron = BN_kronecker(x, &group->field, ctx);
+ kron = BN_kronecker(x, group->field, ctx);
if (kron == -2) goto err;
if (kron == 1)
ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES, EC_R_INVALID_COMPRESSED_POINT);
goto err;
}
- if (!BN_usub(y, &group->field, y)) goto err;
+ if (!BN_usub(y, group->field, y)) goto err;
}
if (y_bit != BN_is_odd(y))
{
/* ret := required output buffer length */
- field_len = BN_num_bytes(&group->field);
+ field_len = BN_num_bytes(group->field);
ret = (form == POINT_CONVERSION_COMPRESSED) ? 1 + field_len : 1 + 2*field_len;
/* if 'buf' is NULL, just return required length */
return EC_POINT_set_to_infinity(group, point);
}
- field_len = BN_num_bytes(&group->field);
+ field_len = BN_num_bytes(group->field);
enc_len = (form == POINT_CONVERSION_COMPRESSED) ? 1 + field_len : 1 + 2*field_len;
if (len != enc_len)
if (y == NULL) goto err;
if (!BN_bin2bn(buf + 1, field_len, x)) goto err;
- if (BN_ucmp(x, &group->field) >= 0)
+ if (BN_ucmp(x, group->field) >= 0)
{
ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);
goto err;
else
{
if (!BN_bin2bn(buf + 1 + field_len, field_len, y)) goto err;
- if (BN_ucmp(y, &group->field) >= 0)
+ if (BN_ucmp(y, group->field) >= 0)
{
ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);
goto err;
int ec_GFp_simple_group_init(EC_GROUP *group)
{
- BN_init(&group->field);
- BN_init(&group->a);
- BN_init(&group->b);
+ group->field = BN_new();
+ group->a = BN_new();
+ group->b = BN_new();
+ if(!group->field || !group->a || !group->b)
+ {
+ if(!group->field) BN_free(group->field);
+ if(!group->a) BN_free(group->a);
+ if(!group->b) BN_free(group->b);
+ return 0;
+ }
group->a_is_minus3 = 0;
return 1;
}
void ec_GFp_simple_group_finish(EC_GROUP *group)
{
- BN_free(&group->field);
- BN_free(&group->a);
- BN_free(&group->b);
+ BN_free(group->field);
+ BN_free(group->a);
+ BN_free(group->b);
}
void ec_GFp_simple_group_clear_finish(EC_GROUP *group)
{
- BN_clear_free(&group->field);
- BN_clear_free(&group->a);
- BN_clear_free(&group->b);
+ BN_clear_free(group->field);
+ BN_clear_free(group->a);
+ BN_clear_free(group->b);
}
int ec_GFp_simple_group_copy(EC_GROUP *dest, const EC_GROUP *src)
{
- if (!BN_copy(&dest->field, &src->field)) return 0;
- if (!BN_copy(&dest->a, &src->a)) return 0;
- if (!BN_copy(&dest->b, &src->b)) return 0;
+ if (!BN_copy(dest->field, src->field)) return 0;
+ if (!BN_copy(dest->a, src->a)) return 0;
+ if (!BN_copy(dest->b, src->b)) return 0;
dest->a_is_minus3 = src->a_is_minus3;
if (tmp_a == NULL) goto err;
/* group->field */
- if (!BN_copy(&group->field, p)) goto err;
- BN_set_negative(&group->field, 0);
+ if (!BN_copy(group->field, p)) goto err;
+ BN_set_negative(group->field, 0);
/* group->a */
if (!BN_nnmod(tmp_a, a, p, ctx)) goto err;
if (group->meth->field_encode)
- { if (!group->meth->field_encode(group, &group->a, tmp_a, ctx)) goto err; }
+ { if (!group->meth->field_encode(group, group->a, tmp_a, ctx)) goto err; }
else
- if (!BN_copy(&group->a, tmp_a)) goto err;
+ if (!BN_copy(group->a, tmp_a)) goto err;
/* group->b */
- if (!BN_nnmod(&group->b, b, p, ctx)) goto err;
+ if (!BN_nnmod(group->b, b, p, ctx)) goto err;
if (group->meth->field_encode)
- if (!group->meth->field_encode(group, &group->b, &group->b, ctx)) goto err;
+ if (!group->meth->field_encode(group, group->b, group->b, ctx)) goto err;
/* group->a_is_minus3 */
if (!BN_add_word(tmp_a, 3)) goto err;
- group->a_is_minus3 = (0 == BN_cmp(tmp_a, &group->field));
+ group->a_is_minus3 = (0 == BN_cmp(tmp_a, group->field));
ret = 1;
if (p != NULL)
{
- if (!BN_copy(p, &group->field)) return 0;
+ if (!BN_copy(p, group->field)) return 0;
}
if (a != NULL || b != NULL)
}
if (a != NULL)
{
- if (!group->meth->field_decode(group, a, &group->a, ctx)) goto err;
+ if (!group->meth->field_decode(group, a, group->a, ctx)) goto err;
}
if (b != NULL)
{
- if (!group->meth->field_decode(group, b, &group->b, ctx)) goto err;
+ if (!group->meth->field_decode(group, b, group->b, ctx)) goto err;
}
}
else
{
if (a != NULL)
{
- if (!BN_copy(a, &group->a)) goto err;
+ if (!BN_copy(a, group->a)) goto err;
}
if (b != NULL)
{
- if (!BN_copy(b, &group->b)) goto err;
+ if (!BN_copy(b, group->b)) goto err;
}
}
}
int ec_GFp_simple_group_get_degree(const EC_GROUP *group)
{
- return BN_num_bits(&group->field);
+ return BN_num_bits(group->field);
}
{
int ret = 0;
BIGNUM *a,*b,*order,*tmp_1,*tmp_2;
- const BIGNUM *p = &group->field;
+ const BIGNUM *p = group->field;
BN_CTX *new_ctx = NULL;
if (ctx == NULL)
if (group->meth->field_decode)
{
- if (!group->meth->field_decode(group, a, &group->a, ctx)) goto err;
- if (!group->meth->field_decode(group, b, &group->b, ctx)) goto err;
+ if (!group->meth->field_decode(group, a, group->a, ctx)) goto err;
+ if (!group->meth->field_decode(group, b, group->b, ctx)) goto err;
}
else
{
- if (!BN_copy(a, &group->a)) goto err;
- if (!BN_copy(b, &group->b)) goto err;
+ if (!BN_copy(a, group->a)) goto err;
+ if (!BN_copy(b, group->b)) goto err;
}
/* check the discriminant:
int ec_GFp_simple_point_init(EC_POINT *point)
{
- BN_init(&point->X);
- BN_init(&point->Y);
- BN_init(&point->Z);
+ point->X = BN_new();
+ point->Y = BN_new();
+ point->Z = BN_new();
point->Z_is_one = 0;
+ if(!point->X || !point->Y || !point->Z)
+ {
+ if(point->X) BN_free(point->X);
+ if(point->Y) BN_free(point->Y);
+ if(point->Z) BN_free(point->Z);
+ return 0;
+ }
return 1;
}
void ec_GFp_simple_point_finish(EC_POINT *point)
{
- BN_free(&point->X);
- BN_free(&point->Y);
- BN_free(&point->Z);
+ BN_free(point->X);
+ BN_free(point->Y);
+ BN_free(point->Z);
}
void ec_GFp_simple_point_clear_finish(EC_POINT *point)
{
- BN_clear_free(&point->X);
- BN_clear_free(&point->Y);
- BN_clear_free(&point->Z);
+ BN_clear_free(point->X);
+ BN_clear_free(point->Y);
+ BN_clear_free(point->Z);
point->Z_is_one = 0;
}
int ec_GFp_simple_point_copy(EC_POINT *dest, const EC_POINT *src)
{
- if (!BN_copy(&dest->X, &src->X)) return 0;
- if (!BN_copy(&dest->Y, &src->Y)) return 0;
- if (!BN_copy(&dest->Z, &src->Z)) return 0;
+ if (!BN_copy(dest->X, src->X)) return 0;
+ if (!BN_copy(dest->Y, src->Y)) return 0;
+ if (!BN_copy(dest->Z, src->Z)) return 0;
dest->Z_is_one = src->Z_is_one;
return 1;
int ec_GFp_simple_point_set_to_infinity(const EC_GROUP *group, EC_POINT *point)
{
point->Z_is_one = 0;
- BN_zero(&point->Z);
+ BN_zero(point->Z);
return 1;
}
if (x != NULL)
{
- if (!BN_nnmod(&point->X, x, &group->field, ctx)) goto err;
+ if (!BN_nnmod(point->X, x, group->field, ctx)) goto err;
if (group->meth->field_encode)
{
- if (!group->meth->field_encode(group, &point->X, &point->X, ctx)) goto err;
+ if (!group->meth->field_encode(group, point->X, point->X, ctx)) goto err;
}
}
if (y != NULL)
{
- if (!BN_nnmod(&point->Y, y, &group->field, ctx)) goto err;
+ if (!BN_nnmod(point->Y, y, group->field, ctx)) goto err;
if (group->meth->field_encode)
{
- if (!group->meth->field_encode(group, &point->Y, &point->Y, ctx)) goto err;
+ if (!group->meth->field_encode(group, point->Y, point->Y, ctx)) goto err;
}
}
{
int Z_is_one;
- if (!BN_nnmod(&point->Z, z, &group->field, ctx)) goto err;
- Z_is_one = BN_is_one(&point->Z);
+ if (!BN_nnmod(point->Z, z, group->field, ctx)) goto err;
+ Z_is_one = BN_is_one(point->Z);
if (group->meth->field_encode)
{
if (Z_is_one && (group->meth->field_set_to_one != 0))
{
- if (!group->meth->field_set_to_one(group, &point->Z, ctx)) goto err;
+ if (!group->meth->field_set_to_one(group, point->Z, ctx)) goto err;
}
else
{
- if (!group->meth->field_encode(group, &point->Z, &point->Z, ctx)) goto err;
+ if (!group->meth->field_encode(group, point->Z, point->Z, ctx)) goto err;
}
}
point->Z_is_one = Z_is_one;
if (x != NULL)
{
- if (!group->meth->field_decode(group, x, &point->X, ctx)) goto err;
+ if (!group->meth->field_decode(group, x, point->X, ctx)) goto err;
}
if (y != NULL)
{
- if (!group->meth->field_decode(group, y, &point->Y, ctx)) goto err;
+ if (!group->meth->field_decode(group, y, point->Y, ctx)) goto err;
}
if (z != NULL)
{
- if (!group->meth->field_decode(group, z, &point->Z, ctx)) goto err;
+ if (!group->meth->field_decode(group, z, point->Z, ctx)) goto err;
}
}
else
{
if (x != NULL)
{
- if (!BN_copy(x, &point->X)) goto err;
+ if (!BN_copy(x, point->X)) goto err;
}
if (y != NULL)
{
- if (!BN_copy(y, &point->Y)) goto err;
+ if (!BN_copy(y, point->Y)) goto err;
}
if (z != NULL)
{
- if (!BN_copy(z, &point->Z)) goto err;
+ if (!BN_copy(z, point->Z)) goto err;
}
}
if (group->meth->field_decode)
{
- if (!group->meth->field_decode(group, Z, &point->Z, ctx)) goto err;
+ if (!group->meth->field_decode(group, Z, point->Z, ctx)) goto err;
Z_ = Z;
}
else
{
- Z_ = &point->Z;
+ Z_ = point->Z;
}
if (BN_is_one(Z_))
{
if (x != NULL)
{
- if (!group->meth->field_decode(group, x, &point->X, ctx)) goto err;
+ if (!group->meth->field_decode(group, x, point->X, ctx)) goto err;
}
if (y != NULL)
{
- if (!group->meth->field_decode(group, y, &point->Y, ctx)) goto err;
+ if (!group->meth->field_decode(group, y, point->Y, ctx)) goto err;
}
}
else
{
if (x != NULL)
{
- if (!BN_copy(x, &point->X)) goto err;
+ if (!BN_copy(x, point->X)) goto err;
}
if (y != NULL)
{
- if (!BN_copy(y, &point->Y)) goto err;
+ if (!BN_copy(y, point->Y)) goto err;
}
}
}
else
{
- if (!BN_mod_inverse(Z_1, Z_, &group->field, ctx))
+ if (!BN_mod_inverse(Z_1, Z_, group->field, ctx))
{
ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES, ERR_R_BN_LIB);
goto err;
}
else
{
- if (!BN_mod_sqr(Z_2, Z_1, &group->field, ctx)) goto err;
+ if (!BN_mod_sqr(Z_2, Z_1, group->field, ctx)) goto err;
}
if (x != NULL)
{
/* in the Montgomery case, field_mul will cancel out Montgomery factor in X: */
- if (!group->meth->field_mul(group, x, &point->X, Z_2, ctx)) goto err;
+ if (!group->meth->field_mul(group, x, point->X, Z_2, ctx)) goto err;
}
if (y != NULL)
}
else
{
- if (!BN_mod_mul(Z_3, Z_2, Z_1, &group->field, ctx)) goto err;
+ if (!BN_mod_mul(Z_3, Z_2, Z_1, group->field, ctx)) goto err;
}
/* in the Montgomery case, field_mul will cancel out Montgomery factor in Y: */
- if (!group->meth->field_mul(group, y, &point->Y, Z_3, ctx)) goto err;
+ if (!group->meth->field_mul(group, y, point->Y, Z_3, ctx)) goto err;
}
}
field_mul = group->meth->field_mul;
field_sqr = group->meth->field_sqr;
- p = &group->field;
+ p = group->field;
if (ctx == NULL)
{
/* n1, n2 */
if (b->Z_is_one)
{
- if (!BN_copy(n1, &a->X)) goto end;
- if (!BN_copy(n2, &a->Y)) goto end;
+ if (!BN_copy(n1, a->X)) goto end;
+ if (!BN_copy(n2, a->Y)) goto end;
/* n1 = X_a */
/* n2 = Y_a */
}
else
{
- if (!field_sqr(group, n0, &b->Z, ctx)) goto end;
- if (!field_mul(group, n1, &a->X, n0, ctx)) goto end;
+ if (!field_sqr(group, n0, b->Z, ctx)) goto end;
+ if (!field_mul(group, n1, a->X, n0, ctx)) goto end;
/* n1 = X_a * Z_b^2 */
- if (!field_mul(group, n0, n0, &b->Z, ctx)) goto end;
- if (!field_mul(group, n2, &a->Y, n0, ctx)) goto end;
+ if (!field_mul(group, n0, n0, b->Z, ctx)) goto end;
+ if (!field_mul(group, n2, a->Y, n0, ctx)) goto end;
/* n2 = Y_a * Z_b^3 */
}
/* n3, n4 */
if (a->Z_is_one)
{
- if (!BN_copy(n3, &b->X)) goto end;
- if (!BN_copy(n4, &b->Y)) goto end;
+ if (!BN_copy(n3, b->X)) goto end;
+ if (!BN_copy(n4, b->Y)) goto end;
/* n3 = X_b */
/* n4 = Y_b */
}
else
{
- if (!field_sqr(group, n0, &a->Z, ctx)) goto end;
- if (!field_mul(group, n3, &b->X, n0, ctx)) goto end;
+ if (!field_sqr(group, n0, a->Z, ctx)) goto end;
+ if (!field_mul(group, n3, b->X, n0, ctx)) goto end;
/* n3 = X_b * Z_a^2 */
- if (!field_mul(group, n0, n0, &a->Z, ctx)) goto end;
- if (!field_mul(group, n4, &b->Y, n0, ctx)) goto end;
+ if (!field_mul(group, n0, n0, a->Z, ctx)) goto end;
+ if (!field_mul(group, n4, b->Y, n0, ctx)) goto end;
/* n4 = Y_b * Z_a^3 */
}
else
{
/* a is the inverse of b */
- BN_zero(&r->Z);
+ BN_zero(r->Z);
r->Z_is_one = 0;
ret = 1;
goto end;
/* Z_r */
if (a->Z_is_one && b->Z_is_one)
{
- if (!BN_copy(&r->Z, n5)) goto end;
+ if (!BN_copy(r->Z, n5)) goto end;
}
else
{
if (a->Z_is_one)
- { if (!BN_copy(n0, &b->Z)) goto end; }
+ { if (!BN_copy(n0, b->Z)) goto end; }
else if (b->Z_is_one)
- { if (!BN_copy(n0, &a->Z)) goto end; }
+ { if (!BN_copy(n0, a->Z)) goto end; }
else
- { if (!field_mul(group, n0, &a->Z, &b->Z, ctx)) goto end; }
- if (!field_mul(group, &r->Z, n0, n5, ctx)) goto end;
+ { if (!field_mul(group, n0, a->Z, b->Z, ctx)) goto end; }
+ if (!field_mul(group, r->Z, n0, n5, ctx)) goto end;
}
r->Z_is_one = 0;
/* Z_r = Z_a * Z_b * n5 */
if (!field_sqr(group, n0, n6, ctx)) goto end;
if (!field_sqr(group, n4, n5, ctx)) goto end;
if (!field_mul(group, n3, n1, n4, ctx)) goto end;
- if (!BN_mod_sub_quick(&r->X, n0, n3, p)) goto end;
+ if (!BN_mod_sub_quick(r->X, n0, n3, p)) goto end;
/* X_r = n6^2 - n5^2 * 'n7' */
/* 'n9' */
- if (!BN_mod_lshift1_quick(n0, &r->X, p)) goto end;
+ if (!BN_mod_lshift1_quick(n0, r->X, p)) goto end;
if (!BN_mod_sub_quick(n0, n3, n0, p)) goto end;
/* n9 = n5^2 * 'n7' - 2 * X_r */
if (BN_is_odd(n0))
if (!BN_add(n0, n0, p)) goto end;
/* now 0 <= n0 < 2*p, and n0 is even */
- if (!BN_rshift1(&r->Y, n0)) goto end;
+ if (!BN_rshift1(r->Y, n0)) goto end;
/* Y_r = (n6 * 'n9' - 'n8' * 'n5^3') / 2 */
ret = 1;
if (EC_POINT_is_at_infinity(group, a))
{
- BN_zero(&r->Z);
+ BN_zero(r->Z);
r->Z_is_one = 0;
return 1;
}
field_mul = group->meth->field_mul;
field_sqr = group->meth->field_sqr;
- p = &group->field;
+ p = group->field;
if (ctx == NULL)
{
/* n1 */
if (a->Z_is_one)
{
- if (!field_sqr(group, n0, &a->X, ctx)) goto err;
+ if (!field_sqr(group, n0, a->X, ctx)) goto err;
if (!BN_mod_lshift1_quick(n1, n0, p)) goto err;
if (!BN_mod_add_quick(n0, n0, n1, p)) goto err;
- if (!BN_mod_add_quick(n1, n0, &group->a, p)) goto err;
+ if (!BN_mod_add_quick(n1, n0, group->a, p)) goto err;
/* n1 = 3 * X_a^2 + a_curve */
}
else if (group->a_is_minus3)
{
- if (!field_sqr(group, n1, &a->Z, ctx)) goto err;
- if (!BN_mod_add_quick(n0, &a->X, n1, p)) goto err;
- if (!BN_mod_sub_quick(n2, &a->X, n1, p)) goto err;
+ if (!field_sqr(group, n1, a->Z, ctx)) goto err;
+ if (!BN_mod_add_quick(n0, a->X, n1, p)) goto err;
+ if (!BN_mod_sub_quick(n2, a->X, n1, p)) goto err;
if (!field_mul(group, n1, n0, n2, ctx)) goto err;
if (!BN_mod_lshift1_quick(n0, n1, p)) goto err;
if (!BN_mod_add_quick(n1, n0, n1, p)) goto err;
}
else
{
- if (!field_sqr(group, n0, &a->X, ctx)) goto err;
+ if (!field_sqr(group, n0, a->X, ctx)) goto err;
if (!BN_mod_lshift1_quick(n1, n0, p)) goto err;
if (!BN_mod_add_quick(n0, n0, n1, p)) goto err;
- if (!field_sqr(group, n1, &a->Z, ctx)) goto err;
+ if (!field_sqr(group, n1, a->Z, ctx)) goto err;
if (!field_sqr(group, n1, n1, ctx)) goto err;
- if (!field_mul(group, n1, n1, &group->a, ctx)) goto err;
+ if (!field_mul(group, n1, n1, group->a, ctx)) goto err;
if (!BN_mod_add_quick(n1, n1, n0, p)) goto err;
/* n1 = 3 * X_a^2 + a_curve * Z_a^4 */
}
/* Z_r */
if (a->Z_is_one)
{
- if (!BN_copy(n0, &a->Y)) goto err;
+ if (!BN_copy(n0, a->Y)) goto err;
}
else
{
- if (!field_mul(group, n0, &a->Y, &a->Z, ctx)) goto err;
+ if (!field_mul(group, n0, a->Y, a->Z, ctx)) goto err;
}
- if (!BN_mod_lshift1_quick(&r->Z, n0, p)) goto err;
+ if (!BN_mod_lshift1_quick(r->Z, n0, p)) goto err;
r->Z_is_one = 0;
/* Z_r = 2 * Y_a * Z_a */
/* n2 */
- if (!field_sqr(group, n3, &a->Y, ctx)) goto err;
- if (!field_mul(group, n2, &a->X, n3, ctx)) goto err;
+ if (!field_sqr(group, n3, a->Y, ctx)) goto err;
+ if (!field_mul(group, n2, a->X, n3, ctx)) goto err;
if (!BN_mod_lshift_quick(n2, n2, 2, p)) goto err;
/* n2 = 4 * X_a * Y_a^2 */
/* X_r */
if (!BN_mod_lshift1_quick(n0, n2, p)) goto err;
- if (!field_sqr(group, &r->X, n1, ctx)) goto err;
- if (!BN_mod_sub_quick(&r->X, &r->X, n0, p)) goto err;
+ if (!field_sqr(group, r->X, n1, ctx)) goto err;
+ if (!BN_mod_sub_quick(r->X, r->X, n0, p)) goto err;
/* X_r = n1^2 - 2 * n2 */
/* n3 */
/* n3 = 8 * Y_a^4 */
/* Y_r */
- if (!BN_mod_sub_quick(n0, n2, &r->X, p)) goto err;
+ if (!BN_mod_sub_quick(n0, n2, r->X, p)) goto err;
if (!field_mul(group, n0, n1, n0, ctx)) goto err;
- if (!BN_mod_sub_quick(&r->Y, n0, n3, p)) goto err;
+ if (!BN_mod_sub_quick(r->Y, n0, n3, p)) goto err;
/* Y_r = n1 * (n2 - X_r) - n3 */
ret = 1;
int ec_GFp_simple_invert(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
{
- if (EC_POINT_is_at_infinity(group, point) || BN_is_zero(&point->Y))
+ if (EC_POINT_is_at_infinity(group, point) || BN_is_zero(point->Y))
/* point is its own inverse */
return 1;
- return BN_usub(&point->Y, &group->field, &point->Y);
+ return BN_usub(point->Y, group->field, point->Y);
}
int ec_GFp_simple_is_at_infinity(const EC_GROUP *group, const EC_POINT *point)
{
- return BN_is_zero(&point->Z);
+ return BN_is_zero(point->Z);
}
field_mul = group->meth->field_mul;
field_sqr = group->meth->field_sqr;
- p = &group->field;
+ p = group->field;
if (ctx == NULL)
{
*/
/* rh := X^2 */
- if (!field_sqr(group, rh, &point->X, ctx)) goto err;
+ if (!field_sqr(group, rh, point->X, ctx)) goto err;
if (!point->Z_is_one)
{
- if (!field_sqr(group, tmp, &point->Z, ctx)) goto err;
+ if (!field_sqr(group, tmp, point->Z, ctx)) goto err;
if (!field_sqr(group, Z4, tmp, ctx)) goto err;
if (!field_mul(group, Z6, Z4, tmp, ctx)) goto err;
if (!BN_mod_lshift1_quick(tmp, Z4, p)) goto err;
if (!BN_mod_add_quick(tmp, tmp, Z4, p)) goto err;
if (!BN_mod_sub_quick(rh, rh, tmp, p)) goto err;
- if (!field_mul(group, rh, rh, &point->X, ctx)) goto err;
+ if (!field_mul(group, rh, rh, point->X, ctx)) goto err;
}
else
{
- if (!field_mul(group, tmp, Z4, &group->a, ctx)) goto err;
+ if (!field_mul(group, tmp, Z4, group->a, ctx)) goto err;
if (!BN_mod_add_quick(rh, rh, tmp, p)) goto err;
- if (!field_mul(group, rh, rh, &point->X, ctx)) goto err;
+ if (!field_mul(group, rh, rh, point->X, ctx)) goto err;
}
/* rh := rh + b*Z^6 */
- if (!field_mul(group, tmp, &group->b, Z6, ctx)) goto err;
+ if (!field_mul(group, tmp, group->b, Z6, ctx)) goto err;
if (!BN_mod_add_quick(rh, rh, tmp, p)) goto err;
}
else
/* point->Z_is_one */
/* rh := (rh + a)*X */
- if (!BN_mod_add_quick(rh, rh, &group->a, p)) goto err;
- if (!field_mul(group, rh, rh, &point->X, ctx)) goto err;
+ if (!BN_mod_add_quick(rh, rh, group->a, p)) goto err;
+ if (!field_mul(group, rh, rh, point->X, ctx)) goto err;
/* rh := rh + b */
- if (!BN_mod_add_quick(rh, rh, &group->b, p)) goto err;
+ if (!BN_mod_add_quick(rh, rh, group->b, p)) goto err;
}
/* 'lh' := Y^2 */
- if (!field_sqr(group, tmp, &point->Y, ctx)) goto err;
+ if (!field_sqr(group, tmp, point->Y, ctx)) goto err;
ret = (0 == BN_ucmp(tmp, rh));
if (a->Z_is_one && b->Z_is_one)
{
- return ((BN_cmp(&a->X, &b->X) == 0) && BN_cmp(&a->Y, &b->Y) == 0) ? 0 : 1;
+ return ((BN_cmp(a->X, b->X) == 0) && BN_cmp(a->Y, b->Y) == 0) ? 0 : 1;
}
field_mul = group->meth->field_mul;
if (!b->Z_is_one)
{
- if (!field_sqr(group, Zb23, &b->Z, ctx)) goto end;
- if (!field_mul(group, tmp1, &a->X, Zb23, ctx)) goto end;
+ if (!field_sqr(group, Zb23, b->Z, ctx)) goto end;
+ if (!field_mul(group, tmp1, a->X, Zb23, ctx)) goto end;
tmp1_ = tmp1;
}
else
- tmp1_ = &a->X;
+ tmp1_ = a->X;
if (!a->Z_is_one)
{
- if (!field_sqr(group, Za23, &a->Z, ctx)) goto end;
- if (!field_mul(group, tmp2, &b->X, Za23, ctx)) goto end;
+ if (!field_sqr(group, Za23, a->Z, ctx)) goto end;
+ if (!field_mul(group, tmp2, b->X, Za23, ctx)) goto end;
tmp2_ = tmp2;
}
else
- tmp2_ = &b->X;
+ tmp2_ = b->X;
/* compare X_a*Z_b^2 with X_b*Z_a^2 */
if (BN_cmp(tmp1_, tmp2_) != 0)
if (!b->Z_is_one)
{
- if (!field_mul(group, Zb23, Zb23, &b->Z, ctx)) goto end;
- if (!field_mul(group, tmp1, &a->Y, Zb23, ctx)) goto end;
+ if (!field_mul(group, Zb23, Zb23, b->Z, ctx)) goto end;
+ if (!field_mul(group, tmp1, a->Y, Zb23, ctx)) goto end;
/* tmp1_ = tmp1 */
}
else
- tmp1_ = &a->Y;
+ tmp1_ = a->Y;
if (!a->Z_is_one)
{
- if (!field_mul(group, Za23, Za23, &a->Z, ctx)) goto end;
- if (!field_mul(group, tmp2, &b->Y, Za23, ctx)) goto end;
+ if (!field_mul(group, Za23, Za23, a->Z, ctx)) goto end;
+ if (!field_mul(group, tmp2, b->Y, Za23, ctx)) goto end;
/* tmp2_ = tmp2 */
}
else
- tmp2_ = &b->Y;
+ tmp2_ = b->Y;
/* compare Y_a*Z_b^3 with Y_b*Z_a^3 */
if (BN_cmp(tmp1_, tmp2_) != 0)
/* Set each prod_Z[i] to the product of points[0]->Z .. points[i]->Z,
* skipping any zero-valued inputs (pretend that they're 1). */
- if (!BN_is_zero(&points[0]->Z))
+ if (!BN_is_zero(points[0]->Z))
{
- if (!BN_copy(prod_Z[0], &points[0]->Z)) goto err;
+ if (!BN_copy(prod_Z[0], points[0]->Z)) goto err;
}
else
{
for (i = 1; i < num; i++)
{
- if (!BN_is_zero(&points[i]->Z))
+ if (!BN_is_zero(points[i]->Z))
{
- if (!group->meth->field_mul(group, prod_Z[i], prod_Z[i - 1], &points[i]->Z, ctx)) goto err;
+ if (!group->meth->field_mul(group, prod_Z[i], prod_Z[i - 1], points[i]->Z, ctx)) goto err;
}
else
{
/* Now use a single explicit inversion to replace every
* non-zero points[i]->Z by its inverse. */
- if (!BN_mod_inverse(tmp, prod_Z[num - 1], &group->field, ctx))
+ if (!BN_mod_inverse(tmp, prod_Z[num - 1], group->field, ctx))
{
ECerr(EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE, ERR_R_BN_LIB);
goto err;
{
/* Loop invariant: tmp is the product of the inverses of
* points[0]->Z .. points[i]->Z (zero-valued inputs skipped). */
- if (!BN_is_zero(&points[i]->Z))
+ if (!BN_is_zero(points[i]->Z))
{
/* Set tmp_Z to the inverse of points[i]->Z (as product
* of Z inverses 0 .. i, Z values 0 .. i - 1). */
if (!group->meth->field_mul(group, tmp_Z, prod_Z[i - 1], tmp, ctx)) goto err;
/* Update tmp to satisfy the loop invariant for i - 1. */
- if (!group->meth->field_mul(group, tmp, tmp, &points[i]->Z, ctx)) goto err;
+ if (!group->meth->field_mul(group, tmp, tmp, points[i]->Z, ctx)) goto err;
/* Replace points[i]->Z by its inverse. */
- if (!BN_copy(&points[i]->Z, tmp_Z)) goto err;
+ if (!BN_copy(points[i]->Z, tmp_Z)) goto err;
}
}
- if (!BN_is_zero(&points[0]->Z))
+ if (!BN_is_zero(points[0]->Z))
{
/* Replace points[0]->Z by its inverse. */
- if (!BN_copy(&points[0]->Z, tmp)) goto err;
+ if (!BN_copy(points[0]->Z, tmp)) goto err;
}
/* Finally, fix up the X and Y coordinates for all points. */
{
EC_POINT *p = points[i];
- if (!BN_is_zero(&p->Z))
+ if (!BN_is_zero(p->Z))
{
/* turn (X, Y, 1/Z) into (X/Z^2, Y/Z^3, 1) */
- if (!group->meth->field_sqr(group, tmp, &p->Z, ctx)) goto err;
- if (!group->meth->field_mul(group, &p->X, &p->X, tmp, ctx)) goto err;
+ if (!group->meth->field_sqr(group, tmp, p->Z, ctx)) goto err;
+ if (!group->meth->field_mul(group, p->X, p->X, tmp, ctx)) goto err;
- if (!group->meth->field_mul(group, tmp, tmp, &p->Z, ctx)) goto err;
- if (!group->meth->field_mul(group, &p->Y, &p->Y, tmp, ctx)) goto err;
+ if (!group->meth->field_mul(group, tmp, tmp, p->Z, ctx)) goto err;
+ if (!group->meth->field_mul(group, p->Y, p->Y, tmp, ctx)) goto err;
if (group->meth->field_set_to_one != 0)
{
- if (!group->meth->field_set_to_one(group, &p->Z, ctx)) goto err;
+ if (!group->meth->field_set_to_one(group, p->Z, ctx)) goto err;
}
else
{
- if (!BN_one(&p->Z)) goto err;
+ if (!BN_one(p->Z)) goto err;
}
p->Z_is_one = 1;
}
int ec_GFp_simple_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
{
- return BN_mod_mul(r, a, b, &group->field, ctx);
+ return BN_mod_mul(r, a, b, group->field, ctx);
}
int ec_GFp_simple_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)
{
- return BN_mod_sqr(r, a, &group->field, ctx);
+ return BN_mod_sqr(r, a, group->field, ctx);
}
{
const EC_POINT *points[4];
const BIGNUM *scalars[4];
- BIGNUM scalar3;
+ BIGNUM *scalar3;
if (EC_POINT_is_at_infinity(group, Q)) ABORT;
points[0] = Q;
scalars[1] = y;
scalars[2] = z; /* z = -(x+y) */
- BN_init(&scalar3);
- BN_zero(&scalar3);
- scalars[3] = &scalar3;
+ scalar3 = BN_new();
+ if(!scalar3) ABORT;
+ BN_zero(scalar3);
+ scalars[3] = scalar3;
if (!EC_POINTs_mul(group, P, NULL, 4, points, scalars, ctx)) ABORT;
if (!EC_POINT_is_at_infinity(group, P)) ABORT;
fprintf(stdout, " ok\n\n");
- BN_free(&scalar3);
+ BN_free(scalar3);
}
projects / openssl / commitdiff