Portable data carrier including a microprocessor
System for keeping account of predetermined homogeneous units
Method of dispatching secret keys to security modules and user cards in a data processing network
Method and system for suthenticating electronic memory cards
Computer access security code system
Computer with improved keyboard password functions Patent #: 4942606
ApplicationNo. 497910 filed on 03/23/1990
US Classes:713/183Solely password entry (no record or token)
ExaminersPrimary: Tarcza, Thomas H.
Assistant: Cain, David
Attorney, Agent or Firm
Foreign Patent References
International ClassH04K 001/00
Foreign Application Priority Data1989-03-25 JP
AbstractDisclosed is a password security method in a man-machine system for keeping the secrecy of a password during a setting process of the system. To keep not only the secret of the password but also the presence of the password from unauthorized users, the method comprises a prompt displaying step for prompting to enter an equipment name and not prompting to enter the password; a password discriminating step to discriminate whether or not a correct password is entered; a step for entering a normal mode when the correct password is not detected; and step for entering a password mode when the correct password is detected.