| 摘要 |
In an automated banking system, a customer at a remote site enters a personal identification number PIN, an account number ACCN, a bank identification number BIN, a PIN OFFSET related to PIN, and transaction data and limits. A first controller validates ACCN and generates a first transaction identification number TRAN 1 and a transaction request TREQ. A second controller receives PIN, BIN, ACCN, and TRAN 1 from the first controller and generates a PIN OFFSET 2 (from PIN, BIN and ACCN) and a TRAN 2 min (from TRAN 1). A third controller receives TREQ, ACCN, TRAN 1 and transaction limits for transfer to a central computer, and generates TRAN 2 if transaction limits are met. The first controller compares TRAN 2 and TRAN 2 min , and PIN OFFSET 1 and PIN OFFSET 2, and issues transaction control signals, and the second controller thereupon transacts the business. The third controller may be on-line or off-line with the central computer. |
