Patent ID: 7117182
Filing Date: 2006-10-03
Classification: G06Q

Abstract:
1. A method for carrying out a multi-party transaction between at least a first party, a second party and a third party in which at least said third party has private information, the method comprising: using at least one computer to perform the steps comprising: providing said first party and said second party with a first subset and a second subset of said private information, respectively, and at least one of said selected unique identifiers, wherein said first and second subsets are based on said information needed for said first and second roles, respectively, and differ from one another at least in part; and an execution step, in which said first and second parties to the transaction complete the transaction, using the first and second subsets of the private information, respectively, without exposure thereof to one another, and said selected unique identifiers, to determine and communicate the details of the fulfillment of their respective roles while minimizing the amount of unneeded private information that is transmitted or otherwise exposed.