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    • 3. 发明授权
    • Financial transactions with dynamic personal account numbers
    • 具有动态个人账号的金融交易
    • US07580898B2
    • 2009-08-25
    • US11618813
    • 2006-12-30
    • Kerry D. BrownDavid Kevin Pariseau
    • Kerry D. BrownDavid Kevin Pariseau
    • G06F17/60
    • G07F7/1008G06Q20/341G06Q20/3415G06Q20/367G06Q20/385G06Q20/401G07F7/08G07F7/1083G07F7/12
    • A method for securing financial transactions involving payment cards includes associating a sixteen-digit personal account number (PAN) with a particular payment card and user, wherein are included fields for a system number, a bank/product number, a user account number, and a check digit. A four-digit expiration date (MMYY) associated with the PAN. A magnetic stripe on the payment card is encoded with the PAN for periodic reading by a magnetic card reader during a financial transaction. A table of cryptographic values associated with the PAN and the MMYY is stored on each user's payment card during personalization by an issuing bank. A next financial transaction being commenced with the payment card is sensed. A cryptographic value from the table of cryptographic values is selected for inclusion as a dynamic portion of the user account number with the PAN when a next financial transaction is sensed. Any cryptographic value from the table of cryptographic values will not be used again in another financial transaction after being used once. The issuing bank authorizes the next financial transaction only if the PAN includes a correct cryptographic value in the user account number field.
    • 用于确保涉及支付卡的金融交易的方法包括将十六位数个人帐号(PAN)与特定支付卡和用户相关联,其中包括用于系统号,银行/商品号,用户帐号和 一个校验位。 与PAN相关联的四位数到期日(MMYY)。 支付卡上的磁条用PAN编码,以便在金融交易期间由磁卡读卡器定期读取。 在发卡行个人化期间,与PAN和MMYY相关联的加密值的表存储在每个用户的支付卡上。 检测到与付款卡开始的下一笔金融交易。 当检测到下一个金融交易时,选择加密值表中的加密值作为用户帐号的动态部分包含在PAN中。 使用一次后,加密值表中的任何加密值将不再被再次用于另一个金融交易。 仅当PAN在用户帐号字段中包含正确的加密值时,开证行才授权下一笔金融交易。