Abstract: A method and a system for authentication and synchronization is disclosed. The user provides a first one time code (OTC) to the authentication manager. If this OTC is within a small access window, the user is directly authenticated and granted access to the system. If the provided OTC is outside the small window but within a big window, the authentication manager saves the first OTC, and a second OTC is required from the user. If the new, second OTC and the first OTC are in sequence, the end user will be authenticated, and admitted access to the system and the requested service.
Abstract: The present invention relates to a portable card reader for communication with card provided with a chip, such as so called smart cards. The reader comprises processing means, a card holder for holding the card in contact with connection means to form a connection between said chip and said processing means, a display and entering means for manually entering information into the reader. The entering means comprises a roller for scrolling a predetermined set of input items, simultaneously being displayed on the display, and an entry key for selecting a presently chosen one of said input item.