RSA_meth_set1_name
int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);
if (!RSA_meth_set1_name(rsa_meth, "ssh-pkcs11-helper") ||
if (!RSA_meth_set1_name(rsa_method, "pkcs11") ||
int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);