+static const OSSL_ITEM flag_map[] = {
+ { FFC_PARAM_FLAG_VALIDATE_PQ, OSSL_FFC_PARAM_VALIDATE_PQ },
+ { FFC_PARAM_FLAG_VALIDATE_G, OSSL_FFC_PARAM_VALIDATE_G },
+ { FFC_PARAM_FLAG_VALIDATE_ALL, OSSL_FFC_PARAM_VALIDATE_PQG },
+ { 0, "" }
+};
+
+int ffc_params_flags_from_name(const char *name)
+{
+ size_t i;
+
+ for (i = 0; i < OSSL_NELEM(flag_map); ++i) {
+ if (strcasecmp(flag_map[i].ptr, name) == 0)
+ return flag_map[i].id;
+ }
+ return NID_undef;
+}
+
+const char *ffc_params_flags_to_name(int flags)
+{
+ size_t i;
+
+ flags &= FFC_PARAM_FLAG_VALIDATE_ALL;
+ for (i = 0; i < OSSL_NELEM(flag_map); ++i) {
+ if ((int)flag_map[i].id == flags)
+ return flag_map[i].ptr;
+ }
+ return "";
+}
+
+int ffc_params_todata(const FFC_PARAMS *ffc, OSSL_PARAM_BLD *bld,
+ OSSL_PARAM params[])
+{
+ if (ffc == NULL)
+ return 0;
+
+ if (ffc->p != NULL
+ && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_P, ffc->p))
+ return 0;
+ if (ffc->q != NULL
+ && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_Q, ffc->q))
+ return 0;
+ if (ffc->g != NULL
+ && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_G, ffc->g))
+ return 0;
+ if (ffc->j != NULL
+ && !ossl_param_build_set_bn(bld, params, OSSL_PKEY_PARAM_FFC_COFACTOR,
+ ffc->j))
+ return 0;
+ if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_GINDEX,
+ ffc->gindex))
+ return 0;
+ if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_PCOUNTER,
+ ffc->pcounter))
+ return 0;
+ if (!ossl_param_build_set_int(bld, params, OSSL_PKEY_PARAM_FFC_H, ffc->h))
+ return 0;
+ if (ffc->seed != NULL
+ && !ossl_param_build_set_octet_string(bld, params,
+ OSSL_PKEY_PARAM_FFC_SEED,
+ ffc->seed, ffc->seedlen))
+ return 0;
+ if (ffc->nid != NID_undef) {
+#ifndef OPENSSL_NO_DH
+ const char *name = ffc_named_group_from_uid(ffc->nid);
+
+ if (name == NULL
+ || !ossl_param_build_set_utf8_string(bld, params,
+ OSSL_PKEY_PARAM_DH_GROUP,
+ name))
+ return 0;
+#else
+ /* How could this be? We should not have a nid in a no-dh build. */
+ return 0;
+#endif
+ }
+ if (!ossl_param_build_set_utf8_string(bld, params,
+ OSSL_PKEY_PARAM_FFC_VALIDATE_TYPE,
+ ffc_params_flags_to_name(ffc->flags)))
+ return 0;
+ if (ffc->mdname != NULL
+ && !ossl_param_build_set_utf8_string(bld, params,
+ OSSL_PKEY_PARAM_FFC_DIGEST,
+ ffc->mdname))
+ return 0;
+ if (ffc->mdprops != NULL
+ && !ossl_param_build_set_utf8_string(bld, params,
+ OSSL_PKEY_PARAM_FFC_DIGEST_PROPS,
+ ffc->mdprops))
+ return 0;
+ return 1;
+}
+
+#ifndef FIPS_MODULE