My idea was to disable the symmetric functionality of the engine. And I have attempted to modify the file ngx_event_openssl.c by calling the function
ENGINE_set_default(engine, ENGINE_METHOD_PKEY_METHS) or configuring the openssl.cnf with only RSA algo.
I have succeeded to do it in a small c code of mine, but in nginx it is like some function are resetting my configuration like
Is someone has an idea on how to resolve my problems ? I would highly appreciate some help.