COS (Class of Service) firmware upgrading method of TF (T-Flash) card

A firmware update and firmware technology, applied in the field of smart cards, can solve the problems of high cost and difficult firmware update.

Active Publication Date: 2014-08-20
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of TF card COS firmware update method, aiming at the defect of above-mentioned prior art, realize TF card COS firmware update safely and conveniently, solve the difficulty and cost of TF card application in mobile computing terminal COS firmware update such as mobile phone high problem

Method used

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  • COS (Class of Service) firmware upgrading method of TF (T-Flash) card

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Embodiment Construction

[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0023] Such as figure 1 Shown, the TF card COS firmware update method of the present invention, it comprises the steps:

[0024] Step 1: The issuer of the TF card generates a firmware update protection asymmetric key pair, and the card issuer registers the firmware update protection public key of the firmware update protection asymmetric key pair and the unique serial number of the TF card, and verifies the firmware update card issuer The key is imported into the TF card, and the TF card protects the two keys from being overwritten;

[0025] Step 2: When the TF card COS firmware needs to be updated, the mobile terminal submits the TF card serial number and update application;

[0026] Step 3: The card issuer verifies the identity according to ...

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Abstract

The invention aims at disclosing a COS (Class of Service) firmware upgrading method of a TF (T-Flash) card. Based on an asymmetrical password technology, by adopting one-card and one-key data transmission protection, one-card and one-key mirror image card inside backup, COS firmware module card inside recombination, one-card and one-key firmware version upgrading and other safety mechanisms and using a hollow communication channel, the COS firmware upgrading of the TF card can be conveniently realized, the problems that the COS firmware is difficult to upgrade and high in cost when the TF card is applied to a mobile phone and other mobile calculation terminals are solved and the aim of the invention can be achieved.

Description

technical field [0001] The invention relates to a method for updating firmware, in particular to a method for updating COS firmware of a TF card in the field of smart cards. Background technique [0002] At present, with the development of various industries and industrial informatization work in the country, the mobile phone application using TF card has become an outstanding representative of the penetration of Internet applications into the mobile communication field, and is one of the most promising e-commerce applications. [0003] The number of industries using smart card technology to provide services or promote value-added services is gradually increasing, making cross-industry and multi-application smart cards the development direction of smart card technology. As a representative of smart cards, TF card (T-Flash Card), also known as Micro SD, is a new generation of memory device based on semiconductor flash memory. The TF card with a volume equal to half a SIM card...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445G06K19/073
Inventor 邹翔陈兵王兴金波朱政洪
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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