PROTOCOL FOR TRANSMITTING A PLURALITY OF MULTIPLE EXCHANGE LOGIC FLOW OF COMMAND/RESPONSE PAIRS ON A SINGLE PHYSICAL EXCHANGE CHANNEL BETWEEN MASTER AND SLAVE AND CORRESPONDING SYSTEM FOR CONTROLLING AND MONITORING EXECUTION OF APPLETS

摘要

The invention concerns a protocol for transmitting multiple logic exchange flow of command/response pairs on a single physical exchange channel between a master and slave transmitter/receiver, and a corresponding system for controlling and monitoring execution of applets. For an existing active base logic flow (S), the protocol consists in selecting (B) said base flow as reference logic flow, generating a set of concurrent logic flows ({CLFx}). The concurrent logic flows consist of successive elementary packets segmenting (D) the pairs of command/response. The exchange is initialised and continued by the master transceiver on the basis of specific commands, and the segmentation by the slave transceiver on the basis of specific responses transmitted on the reference flow. The invention is in particular useful for controlling and monitoring the execution of applets implanted on multi-application smart cards.