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Storage card locking method and system

A memory card and operating system technology, applied in the field of memory card content protection, can solve problems such as inconvenient operation and poor memory card security, and achieve the effects of convenient operation, leakage prevention, and convenient direct access

Inactive Publication Date: 2012-08-22
兰宦泽 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned defects of the prior art, the present invention provides a memory card locking method and system, which solves the problems of poor security and inconvenient operation of the memory card in the prior art

Method used

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  • Storage card locking method and system

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The present invention provides a logical password locking method for memory card control, which utilizes common operating commands supported by common operating systems and card readers, instead of special locking / unlocking in specific protocols (such as SD / MMC protocols, etc.) command to lock / unlock the memory card. The present invention can be applied to various types of memory cards without modifying specific protocols, and is easy to use an...

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Abstract

The invention relates to the technical field of content protection of storage cards and discloses a storage card locking method and system. The method comprises the following steps: S1, a user accesses data on a storage card, an operating system uses a universal command to perform operation, a storage card controller intercepts the operation and performs verification, if unlocking conditions are met, the step S2 is implemented, otherwise, the state of the storage card is kept in a locking state; S2, the storage card controller is used for converting the state of the storage card to an unlocking state; S3, the storage card controller is used for judging whether the logic of the operating system against the current operation of the storage card meets the locking conditions, if so, the step S4 is implemented, otherwise, the state of the storage card is kept in the unlocking state; and S4, the storage card controller is used for setting the storage card in the locking state. According to the method disclosed by the invention, the leakage of important data of the storage card can be prevented, the safety is enhanced, and the privacy of the user is protected; and in addition, the universal command is used for verification, thus the operation of the system is facilitated and the compatibility is ensured.

Description

technical field [0001] The invention relates to the technical field of memory card content protection, in particular to a memory card locking method and system. Background technique [0002] Non-volatile memory cards (such as TF cards, SD cards, etc.) are widely used in mobile phones, PDAs, cameras, tablet computers and other digital products. Although it is convenient for daily information management, once the memory card is lost or stolen, its internal The stored information is extremely easy to leak, which will not only bring harm to people such as personal privacy leaks, but may even cause heavy losses due to the leak of confidential content. [0003] Although the memory card meeting the SD / MMC protocol in the prior art can support the password verification function, the access restriction to the memory card is realized by password verification commands, etc.; The lack of support in the operating system greatly affects the security of memory card information. If the op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14
Inventor 兰宦泽李岩陈永春
Owner 兰宦泽
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