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POS (point of sale) machine key downloading method, device and system

A POS machine and machine key technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as poor security and easy leakage of POS machine master keys.

Active Publication Date: 2016-09-28
随行付支付有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the master key of the POS machine transmitted through the serial port is in plain text, it is easy to be intercepted by the serial port data reading tool, resulting in the master key of the POS machine being easily leaked during the download process, and the security is poor

Method used

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  • POS (point of sale) machine key downloading method, device and system
  • POS (point of sale) machine key downloading method, device and system
  • POS (point of sale) machine key downloading method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] In this embodiment, a POS machine key download method is provided, which is applied to a POS machine.

[0117] See figure 1 , which shows a flow chart of the POS machine key download method provided by the application, which may include the following steps:

[0118] Step S11: Obtain the IC card key.

[0119] In this embodiment, the IC card key is the card key of the IC card media operation manager card connected to the POS machine to be downloaded the key.

[0120] In this embodiment, the operation manager installs the POS machine at the merchant's place, inserts an IC card medium operation manager card on the POS machine to be downloaded the key, and uses the password keyboard of the POS machine to be downloaded to input the IC card medium The password of the key IC card corresponding to the operation manager card, the POS machine to be downloaded the key, after verifying that the key IC card password entered is correct, from the IC card medium operation manager card...

Embodiment 2

[0135] In this embodiment, another flow chart of the POS machine key download method provided by the application is shown, which may include the following steps:

[0136] Step S31: Obtain the IC card key.

[0137] Step S31 is the same as step S11 in the POS machine key downloading method shown in the first embodiment, and will not be repeated here.

[0138] Step S32: Generate a first random number and a second random number, and use the IC card key to encrypt the first random number to obtain a first random number ciphertext.

[0139] Step S33: After sending the master key download request to the acquiring platform server, upload the first two-way authentication information to the acquiring platform server, the first two-way authentication information includes at least the IC card number and the first random number , the second random number and the first random number ciphertext, the IC card number is the card number of the IC media operation manager card corresponding to th...

Embodiment 3

[0161] The POS machine key download method shown in the first embodiment may also include executing the inspection processing flow, wherein, for the inspection processing flow process, please refer to Figure 5 , can include the following steps:

[0162] Step S51: after the operation manager is prompted to input the inspection work content, receive the inspection work content input by the operation manager.

[0163] Step S52: After the operation manager is prompted to input the machine tool state, receive the machine tool state input by the operation manager.

[0164] Step S53: After prompting the operation manager to insert or swipe the card or input the operation manager's card number, if it is detected that the card connected to the POS machine with the key to be downloaded is an IC medium operation manager card, then obtain the card corresponding to the key to be downloaded. The IC card key of the IC media operation manager card connected to the POS machine.

[0165] Ste...

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Abstract

The invention provides a POS (point of sale) machine key downloading method, device and system. The POS machine key downloading method comprises the steps of acquiring an IC card key, receiving a POS key ciphertext issued by an order receiving platform server for a POS machine of the key to be downloaded, decrypting the POS key ciphertext by using the IC card key so as to acquire a POS machine master key to be used, and storing the POS machine master key to be used. In the invention, the POS key ciphertext is not easy to be cracked, and the mode that the POS key ciphertext is directly transmitted to the POS machine of the key to be downloaded from the order receiving platform server enables the POS machine master key to be not easy to be intercepted in the downloading process compared with a mode of transmitting a plaintext through a serial pot, so that the POS machine master key downloading safety is improved.

Description

technical field [0001] The present application relates to the field of POS machine key downloading, in particular to a POS machine key downloading method, device and system. Background technique [0002] With the improvement of mass consumption level, POS (point of sale, sales terminal) machines are widely used, so that users are no longer limited to cash payment when shopping, but pay by swiping a card. [0003] Among them, the POS machine needs to have a terminal key to ensure the security of the transaction. The key of the POS machine includes the master key of the POS machine and the working key, and the working key is the underlying data encryption key (used to prevent tampering of terminal transmission information and protect the user's bank card password). Since the work key is updated through an online sign-in transaction, the POS machine master key is used for encryption and decryption to ensure security during the update process, so the POS machine master key need...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H04L9/08G07G1/14
CPCG07G1/14H04L9/083H04L9/321H04L63/06
Inventor 薛光宇苏小泉
Owner 随行付支付有限公司
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