Method for transmitting high-speed data stream, especially multimedia data stream, over internet-type network between server and chip card terminal

摘要

The invention relates to a method for high-speed data stream transmission to an Internet-type network (RI) between a remote server ( 4 ) and a smart card terminal ( 1 ). The terminal and the card each include a specific transmission protocol layer ( 13, 23 a). These layers include two intelligent agents (TSUB2/SUB, TSUB1/SUB, SSUB2/SUB, SSUB1/SUB), one being a server and the other being a client. The intelligent agents (TSUB2/SUB, TSUB1/SUB, SSUB2/SUB, SSUB1/SUB) enable the establishment of bidirectional data exchange sessions. The card then has the function of a client/web server. A filter ( 28 ) cooperates with the intelligent agents (TSUB2/SUB, TSUB1/SUB, SSUB2/SUB, SSUB1/SUB) to form a "proxy"-type function ( 27 ) implanted directly in the card. The data stream includes critical data that pass through the card and opaque data that pass directly to the terminal ( 1 ) under the control of the filter ( 28 ). Application in particular to multimedia data streams.