Hand-held electronic device for establishing a secure connection with a host via a terminal

THIS DEVICE INCLUDES FIRST INTERFACE MEANS (R, 10) FOR AT LEAST RECEIVING SERVER DATA THROUGH TERMINAL SUCH, SECOND INTERFACE MEANS THAT INCLUDE A KEYBOARD (8) AND A DISPLAY (6) FOR ENTRY AND READING DATA BY A USER OF SUCH DEVICE, A MICROCALCULATOR (4) INTENDED TO TREAT DATA RECEIVED BY THE DEVICE, DATA MEMORIZATION MEANS (12) OF PROTECTED ACCESS AND AN ELECTRICAL ENERGY SOURCE TO FEED THE DIFFERENT CIRCUITS. THE MICROCOMPUTER IS PROGRAMMED TO INSURE, IN ADDITION TO A SERVER'S AUTHENTICATION FUNCTION (S): GOD OF INTERFACE OF ENCRYPTED DATA FROM THE SERVER THAT ARE REPRESENTATIVES OF A TRANSACTION CARRIED OUT BY SUCH USER WITH SUCH SERVER THROUGH SUCH TERMINAL AND MEMORIZATION OF SUCH TRANSACTION DATA IN SUCH MEMORIZATION MEANS IN RESPECT OF SUCH TRANSPORTATION SUCH DEVICE, ACCORDING TO SUCH TRANSACTION DATA MEMORIZED IN THE MEMORY MEANS.