Patent ID: 7814068

Claim:
A method applied by an electronic token comprising a microprocessor and a memory for identifying changed records among a plurality of records stored in the memory of the electronic token, the method comprising: for each one of the plurality of records: calculating in the electronic token a respective change detection code (CDC) associated with the record; and comparing in the electronic token the calculated CDC with a corresponding CDC stored in the token and associated with the record in order to determine if the record has been changed since the CDC stored in the token and associated with the record was calculated; and if the calculated CDC of at least one of the plurality of records is not equal to the corresponding stored CDC, preparing a Short message Service (SMS) message in the electronic token and sending the SMS message from the electronic token to a registering element, which SMS message includes a content of at least one record which has been identified as changed, and saving in the token the calculated CDC of the record in replacement of the previous stored CDC of the record.