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Smart card cos version verification method and verification device

The technology of a verification method and a verification device is applied in the field of version verification and can solve problems such as ineffective smart card verification.

Active Publication Date: 2018-11-06
SHENZHEN EMPEROR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a smart card COS version verification method to solve the technical problem that the existing smart card COS version verification method cannot effectively verify the COS data of the smart card
[0007] The purpose of the embodiments of the present invention is to provide a smart card COS version verification device to solve the technical problem that the existing smart card COS version verification device cannot effectively verify the COS data of the smart card

Method used

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  • Smart card cos version verification method and verification device
  • Smart card cos version verification method and verification device
  • Smart card cos version verification method and verification device

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Embodiment Construction

[0045] The preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[0046] Please refer to figure 1 , figure 1 It is a flow chart of the first preferred embodiment of the smart card COS version verification method of the present invention. The COS version checking method of the smart card of this preferred embodiment comprises:

[0047] Step S101, dividing the COS data of the smart card into at least two data blocks;

[0048] Step S102, using the built-in verification algorithm of the smart card and the preset initial value to determine the verification code of each data block;

[0049] Step S103, verifying the COS version of the smart card according to the check code of the data block and the check code of the COS data of the smart card;

[0050] The method for verifying the COS version of the smart card in this preferred embodiment ends at step S103.

[0051] The specific flow of each step of the method for verif...

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Abstract

The invention provides a COS (Chip Operating System) version check method and a check device of an intelligent card. The COS version check method of the intelligent card comprises the steps of dividing COS data of the intelligent card into at least two data blocks, determining a check code of each data block with a built-in check algorithm of the intelligent card and a preset initial value, and checking a COS version of the intelligent card according to the check codes of the data blocks and a check code of COS data of the intelligent card. The invention further provides the COS version check device of the intelligent card. According to the COS version check method and the check device of the intelligent card, the COS data of the intelligent card is divided into the data blocks, and the check codes of the data blocks are compared with the check code of the COS data, so that the COS version of the intelligent card can be checked effectively.

Description

technical field [0001] The invention relates to the field of version verification, and more specifically, to a COS version verification method and a verification device for a smart card. Background technique [0002] With the development of technology, more and more people use smart cards for small payments, such as bus cards, shopping cards, etc. A smart card, also called a CPU card, is integrated with a central processing unit, a programmable read-only memory, a random access memory, and a COS (Chip Operating System, on-card operating system or smart card system) solidified in the read-only memory. The COS has the following functions: transmission management, file management, security system and command interpretation, etc. [0003] The data in the smart card is divided into the external reading part and the internal processing part. In order to ensure the safety and reliability of the data in the smart card, the COS data of the smart card is set as the data of the intern...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/10G06K19/07
Inventor 郑嵩刘丁
Owner SHENZHEN EMPEROR TECH