System and method for security of data exchange, portable object user and remote device to teledescarregamento data.

摘要

The technical problem to be solved is securing data exchange between at least two connected devices, regardless of the device type. The present invention is intended for at least partially solving the disadvantages of the prior art by providing a data exchange system including devices connected therebetween, part of the secret information contained in the memory of the devices never being sent. The data is thus exchanged between the connected devices with complete security and complete integrity.