Bidirectional encryption verification system and depositing and withdrawing all-in-one machine with bidirectional encryption verification system

Abstract

The invention discloses a bidirectional encryption verification system. The system comprises a PC industrial control host used for operating a cash processing module control program; a cash processingmodule which has a bidirectional encryption verification function and can carry out data communication with the PC industrial control host, wherein a cash dispensing authentication module is arrangedin the cash processing module and comprises a first cash dispensing authentication module and a second cash dispensing authentication module, the first cash dispensing authentication module is connected to the PC industrial control host, and the second cash dispensing authentication module is connected to the cash processing module; a password keyboard which is in communication connection with the PC industrial control host, wherein the secret keys used by the password keyboard comprise a working secret key and an MAC secret key, the working secret key is used for protecting the PIN codes inputted by a user, and the MAC secret key is used for the MAC calculation of the transaction information. The bidirectional encryption verification system has a two-way encryption verification function,realizes the hard encryption between the cash processing module and the PC industrial control host, and enables the security of customer properties and information to be remarkably improved.

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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