RSA_meth_new
new_method = RSA_meth_new("hx509 PKCS11 PKCS#1 RSA", 0);
capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
OSSL_DEPRECATEDIN_3_0 RSA_METHOD *RSA_meth_new(const char *name, int flags);