Two-way encryption verification system and deposit and withdrawal all-in-one machine with two-way encryption verification system

Abstract

The invention discloses a two-way encryption verification system, comprising: a PC industrial control host, which is used to run a cash processing module control program; a cash processing module, which has a two-way encryption verification function, and the cash processing module can perform data communication with the PC industrial control host, The cash processing module has a built-in cash output authentication module, which includes a first cash output authentication module and a second cash output authentication module. The first cash output authentication module is connected to the PC industrial control host, and the second cash output authentication module is connected to the cash output authentication module. On the processing module; and a cipher keyboard, which communicates with the PC industrial control host, and the key used by the cipher keyboard includes a work key and a MAC key, wherein the work key is used to protect the PIN code entered by the user, and the MAC key is used for MAC calculation of transaction information. The two-way encryption verification system of the present invention has the function of two-way encryption verification, realizes hard encryption between the cash processing module and the PC industrial control host, and significantly improves the security of customer property and information.

Description

technical field [0001] The invention relates to the technical field of financial information security, in particular to a two-way encryption verification system and an all-in-one deposit and withdrawal machine with the two-way encryption system. Background technique [0002] The all-in-one deposit and withdrawal machine is one of the automatic teller machines (ATM for short) used by banks. The English name can be called: Cash Recycling System, or CRS for short. With the development of cash self-service business, in order to meet people's needs, more and more CRS devices are installed in 24-hour self-service banks, shopping malls, hotels, hospitals, schools, communities, convenience stores, and even directly on the roadside. [0003] The harsh installation environment will bring about dead ends for security monitoring. The communication lines of some equipment are easily exposed, and only a simple tool can be used to destroy the line and cause communication interruption, or e...

AI Technical Summary

Problems solved by technology

Once such an incident occurs, it will have a serious impact and loss on the personal financial system of the bank

[0004] When dealing with the encryption of communication between the cash processing module and the industrial control host, the products of other manufacturers at home and abroad often use software data encryption. However, this method is easy to be cracked, so there is a risk of information leakage

Although some manufacturers' products have achieved hard encryption between the cash processing module and the industrial control host, they have not optimized the data processing method, resulting in a much lower transmission rate than before encryption

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