Patent ReferencesMethod and apparatus for entity authentication Method, apparatus, system and firmware for secure transactions Method and apparatus utilizing dynamic questioning to provide secure access control System and method for billing for transactions conducted over the internet from within an intranet Distributed file system web server user authentication with cookies Patent #: 5875296 InventorsApplicationNo. 964274 filed on 11/04/1997US Classes:705/35, Finance (e.g., banking, investment or credit)705/40, Bill distribution or payment713/153Particular node (e.g., gateway, bridge, router, etc.) for directing data and applying cryptographyExaminersPrimary: Teska, Kevin J.Assistant: Smith, Demetra R. International ClassG06F 017/60AbstractA method and apparatus for authenticating transactions accomplished over a data network utilizes a "cookie" containing both static information (user-identifying information) and dynamic information (transaction-based information). The transaction-oriented dynamic information portion comprises a random number and a sequence number, the latter tracking the number of billing transactions conducted by the user associated with the account number. The cookie, sent to the user's cookie file upon a previous transaction, is valid for only a single new transaction. A billing server, upon receiving the cookie containing the static and dynamic information portions, identifies the user from the account number in the static portion and accesses from an associated database the expected random number and sequence number that the billing server last sent to that user in the transaction-oriented dynamic portion. If the expected dynamic portion matches the received dynamic portion, the user is authenticated to proceed with the current transaction. | |