Method for operating a transaction execution system having improved verification of personal identification

摘要: A transaction execution system including at least one terminal in communication with a host data processing system. the is authorized based, part, upon correspondence of personal identification entered by operator keyboard account read from an card. When not derived data, check made comparison encrypted validation data. The may, failure correspondence, communicate conditional authorization message to terminal, which enables again attempt enter correct base stores as and only double appears on lines.