Crossing network utilizing optimal mutual satisfaction density profile
Offer matching system having timed match acknowledgment
Method and system for performing automated financial transactions involving foreign currencies
Computer implemented methods and apparatus for auctions
Method and apparatus for processing orders from customers in a mobile environment Patent #: 6026375
ApplicationNo. 134012 filed on 08/14/1998
US Classes:705/69, Electronic cash detail (e.g., blinded, divisible, or detecting double spending)705/64, Secure transaction (e.g., EFT/POS)705/65, Including intelligent token (e.g., electronic purse)705/67, Including authentication705/74, Anonymous user system705/76, Electronic credential705/80ELECTRONIC NEGOTIATION
ExaminersPrimary: Trammell, James P.
Assistant: Chung, Phung M.
Attorney, Agent or Firm
Foreign Patent References
International ClassG06F 017/60
AbstractThe invention provides techniques for implementing secure transactions using an instrument referred to as "executable digital cash." In an illustrative embodiment, a first user generates a piece of digital cash representing an offer made by that user. The piece of digital cash includes a digital certificate authorizing the first user to make specified transfers, and an offer program characterizing the offer. The piece of digital cash is broadcast or otherwise transmitted to one or more additional users, utilizing a mobile agent or other suitable mechanism, such that a given one of these users can evaluate the offer using the offer program. For example, a second user could execute the offer program with a specific bid as an input to determine what that user would receive upon acceptance of his bid. If the result is acceptable to the second user, that user generates a bid capsule including the bid, the corresponding output of the offer program, and another certificate authorizing the second user to make the transfer specified in the bid. The bid capsule is submitted to an institution for processing in accordance with a policy which may be specified in the piece of digital cash. The institution selects one or more winning bids and implements the corresponding transactions. Digital signatures generated using secret keys associated with the certificates of the first and second users are utilized to ensure adequate security for the transmitted offer and bid information.