Original document(14 pages)  中文版
    A one-way permutation over financial transaction card data provides a merchant with a unique card identifier for each financial transaction card that is used by a customer to purchase goods from a merchant. This card identifier, which is not the actual financial transaction card data, may then be permissibly stored by the merchant and used to uniquely identify the customer's financial transaction card, and may also be used to determine the frequency with which that customer makes purchases using that card.
Application Number
申请号		 200580003089 Application Date
申请日		 2005.01.24
Title 名称 System and method for generating collision-free identifiers for financial transaction cards
Publication Number
公开号		 1910591 Publication Date
公开日		 2007.02.07
Approval Pub. Date Granted Pub. Date
International Classification 分类号 G06K5/00
Applicant(s) Name
申请人		 Mastercard International Inc.
Address 地址
Inventor(s) Name 发明人 Smets Patrik;Vanneste Paul
Attorney & Agent 代理人 liu jia
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