rsa_gettable_ctx_params
static OSSL_FUNC_asym_cipher_gettable_ctx_params_fn rsa_gettable_ctx_params;
(void (*)(void))rsa_gettable_ctx_params },
(void (*)(void))rsa_gettable_ctx_params },
(void (*)(void))rsa_gettable_ctx_params }, \
static OSSL_FUNC_signature_gettable_ctx_params_fn rsa_gettable_ctx_params;