crypto/ec/ecp_smpl.c

117  * non-trivial representations of field elements if necessary
132 	BN_init(&group->field);
142 	BN_free(&group->field);
150 	BN_clear_free(&group->field);
158 	if (!BN_copy(&dest->field, &src->field)) return 0;
193 	/* group->field */
194 	if (!BN_copy(&group->field, p)) goto err;
195 	BN_set_negative(&group->field, 0);
211 	group->a_is_minus3 = (0 == BN_cmp(tmp_a, &group->field));
230 		if (!BN_copy(p, &group->field)) return 0;
276 	return BN_num_bits(&group->field);
284 	const BIGNUM *p = &group->field;
408 		if (!BN_nnmod(&point->X, x, &group->field, ctx)) goto err;
417 		if (!BN_nnmod(&point->Y, y, &group->field, ctx)) goto err;
428 		if (!BN_nnmod(&point->Z, z, &group->field, ctx)) goto err;
587 		if (!BN_mod_inverse(Z_1, Z_, &group->field, ctx))
600 			if (!BN_mod_sqr(Z_2, Z_1, &group->field, ctx)) goto err;
618 				if (!BN_mod_mul(Z_3, Z_2, Z_1, &group->field, ctx)) goto err;
668 	if (!BN_nnmod(x, x_, &group->field,ctx)) goto err;
677 		if (!BN_mod_sqr(tmp2, x_, &group->field, ctx)) goto err;
678 		if (!BN_mod_mul(tmp1, tmp2, x_, &group->field, ctx)) goto err;
684 		if (!BN_mod_lshift1_quick(tmp2, x, &group->field)) goto err;
685 		if (!BN_mod_add_quick(tmp2, tmp2, x, &group->field)) goto err;
686 		if (!BN_mod_sub_quick(tmp1, tmp1, tmp2, &group->field)) goto err;
693 			if (!BN_mod_mul(tmp2, tmp2, x, &group->field, ctx)) goto err;
701 		if (!BN_mod_add_quick(tmp1, tmp1, tmp2, &group->field)) goto err;
708 		if (!BN_mod_add_quick(tmp1, tmp1, tmp2, &group->field)) goto err;
712 		if (!BN_mod_add_quick(tmp1, tmp1, &group->b, &group->field)) goto err;
715 	if (!BN_mod_sqrt(y, tmp1, &group->field, ctx))
735 			kron = BN_kronecker(x, &group->field, ctx);
745 		if (!BN_usub(y, &group->field, y)) goto err;
799 	field_len = BN_num_bytes(&group->field);
933 	field_len = BN_num_bytes(&group->field);
955 	if (BN_ucmp(x, &group->field) >= 0)
968 		if (BN_ucmp(y, &group->field) >= 0)
1019 	p = &group->field;
1183 	p = &group->field;
1288 	return BN_usub(&point->Y, &group->field, &point->Y);
1312 	p = &group->field;
1627 		if (!BN_mod_inverse(heap[1], heap[1], &group->field, ctx))
1708 	return BN_mod_mul(r, a, b, &group->field, ctx);
1714 	return BN_mod_sqr(r, a, &group->field, ctx);