Client-server communication method for secure and non-secure communication, by defining request response protocol based on start code received by server

摘要

The method involves the server receiving a client request comprising one start code from two sets of start codes. The request response protocol that is to be used to respond to the client request is determined based on the start code. Independent claims are included for a client computer system; a server computer system; a computer program product; a data processing system; and a further client-server communication method.