Keyboard encrypting method

Abstract

Word of the keyboard said in the invention includes print circuit board for processing keyboard. The invention uses following security measure for the keyboard: print circuit board in use for processing keyboard is divided into a part for processing function of secrecy, and a part for processing not confidential function. A mechanism for protecting secrecy information is setup on the keyboard to surround physical space of the part for processing function of secrecy. Once the mechanism gives signal to show that secrecy information meets with attack, secrecy information inside the part for processing function of secrecy is destroyed. A mechanism for protecting keyboard body is setup on the keyboard. Once the mechanism gives signal to show that keyboard meets with attack, the said secrecy information is also destroyed. The secrecy information includes at least a cipher key, and program run on microprocessor includes DES algorithm. The invention raises data security of keyboard operation.

Description

technical field [0001] The present invention relates to financial equipment, in particular to an ATM (automatic teller machine) operating keyboard, and in particular to a data security method for the ATM operating keyboard. Background technique [0002] The existing banking system usually consists of three parts: host, terminal and network to form a huge network banking system. Bank key management software is usually installed in the mainframe of the bank or in the front-end server, and terminal processing software is installed in the bank terminal. The mainframe and the terminal are connected through the network, the data format follows the IS08583 standard, and there is a network encryption mechanism. . From the network point of view, this system is quite safe on the surface, but from the perspective of relevant professionals who conduct internal debugging of bank terminals, there are considerable security risks: because existing bank terminals, such as ATM machines, have...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the ATM operation keyboard needs to effectively prevent data leakage and theft, and ensure the data security of the keyboard operation. The above-mentioned existing keyboards cannot solve this problem well, and there is still the possibility of confidential data such as user account numbers and passwords being lost.

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