crypto/ec/ec_oct.c

24 int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *point,
27     if (group->meth->point_set_compressed_coordinates == NULL
28         && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
32     if (!ec_point_is_compat(point, group)) {
36     if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
37         if (group->meth->field_type == NID_X9_62_prime_field)
38             return ossl_ec_GFp_simple_set_compressed_coordinates(group, point, x,
47             return ossl_ec_GF2m_simple_set_compressed_coordinates(group, point,
51     return group->meth->point_set_compressed_coordinates(group, point, x,
56 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
60     return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx);
64 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
68     return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx);
73 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point,
77     if (group->meth->point2oct == 0
78         && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
82     if (!ec_point_is_compat(point, group)) {
86     if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
87         if (group->meth->field_type == NID_X9_62_prime_field)
88             return ossl_ec_GFp_simple_point2oct(group, point, form, buf, len,
97             return ossl_ec_GF2m_simple_point2oct(group, point,
102     return group->meth->point2oct(group, point, form, buf, len, ctx);
105 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
108     if (group->meth->oct2point == 0
109         && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
113     if (!ec_point_is_compat(point, group)) {
117     if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
118         if (group->meth->field_type == NID_X9_62_prime_field)
119             return ossl_ec_GFp_simple_oct2point(group, point, buf, len, ctx);
127             return ossl_ec_GF2m_simple_oct2point(group, point, buf, len, ctx);
130     return group->meth->oct2point(group, point, buf, len, ctx);
133 size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point,
140     len = EC_POINT_point2oct(group, point, form, NULL, 0, NULL);
147     len = EC_POINT_point2oct(group, point, form, buf, len, ctx);