| 摘要 |
PURPOSE: Since the security management is provided to connect only appropriate terminal, many terminals are connected to branch processor in public network or wireless network. So an illegal connection by the virtual terminals cannot be prevented during online working. CONSTITUTION: The apparatus comprises the branch process(100) and a terminal machine(110). Branch process(100) comprises the master encryption key generating unit(102), which generates necessary connection code in case that a terminal machine demands connection to the branch process after the allocation of a point-machine number, the terminal processing part(108) which processes connection demand from each terminal machine, the encryption-key-by-transaction generating unit(104) generates the pertinent encryption code in case a terminal machine demands the type of transaction to be serviced, the data checking unit(106) checks transmission data with the encryption-key-by-transaction generating unit(104). The terminal machine(110) comprises the encryption key receiving unit(112) which receives the encrypted response data, and the data generating unit(114) performs the encoding of the transaction data with the encryption key received from the encryption key receiving unit(112). Consequentially, The method and the system are provided to prevent illegal transactions, after an encryption key by the transaction has been allocated, a decision is made whether to use the on-line transmission or not in the financial computer network, and prevent data from hacking by a virtual terminal on the open network, through the encrypted transmission of transaction data. |
