Systems and methods for flexible, extensible authentication subsystem that enabled enhance security for applications

A method comprising:

• receiving, by a device, a request from a client to access a resource;
• selecting, by the device, a login schema from a plurality of login schemas that are used by an authenticator to authenticate the client, the login schema comprising one or more of an authentication schema or a dialog schema that each define a login form using an authentication protocol to communicate with the authenticator;
• generating, by a virtual server of the device configured to generate forms based on each of the plurality of login schemas, the login form to authenticate the client using at least the selected login schema;
• providing, by the device responsive to the request and for display by a display device of the client, the login form generated by the device based at least on the login schema;
• receiving, by the device, information inputted into the login form via the client;
• and
• establishing, by the device responsive to authenticating the client via the authenticator using the authentication protocol and the information, access to the resource by the client.