POS machine secret key remote downloading service system and secret key downloading method

Abstract

The invention discloses a POS machine secret key remote downloading service system and secret key downloading method, and relates to the technique of POS machine information security. The whole scheme comprises seven components of a POS machine terminal, a security chip, a communication module, a random number generator, a secret storage region, a background server and an encryptor; wherein the security chip, the communication module, the random number generator and the secret storage region are contained in the POS machine terminal; the background server is directly connected with the encryptor; the POS machine terminal builds a remote communication channel with the background server through the communication module; and three stages of bidirectional authentication, master secret key issuing and working secret key issuing are successively finished. According to the system and the method, the features that the conventional POS machine secret key downloading method is low in efficiency, low in flexibility and difficult in secondary updating are overcome; the security demand is taken into consideration; high secret demands of one machine one key and one day one key are satisfied; the POS machine secret keys are dynamically updated; and the system and the method are applicable to remote use and rapid deployment of the POS machine.

Description

technical field [0001] The invention relates to the field of mobile payment POS machine information security, and specifically describes a POS machine key remote download technology. Background technique [0002] With the rapid development of mobile payment technology, POS machines, as the front-end hardware equipment of the financial payment system, have also undergone rapid development. POS machines using various new technologies have emerged rapidly, such as Bluetooth POS machines, mPOS machines, smart POS machines, and cloud POS machines. machine etc. [0003] Because the POS machine involves personal account and property security, its transactions are sensitive and confidential. Therefore, the POS machine must adopt confidentiality measures in accordance with the standards of the international EMV card organization and the domestic UnionPay standard. Specifically, it is necessary to encrypt transaction sensitive information. The core of all encryption algorithms is the...

AI Technical Summary

Problems solved by technology

[0009] First, the efficiency is low, which cannot satisfy the rapid production of factories and the rapid deployment of markets;

[0010] The second is that the flexibility is poor, and it cannot be imported remotely. Once the POS machine is deployed in the market, the POS machine must

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