Memorizer partition isolating method and device and electronic device

A technology for electronic devices and external storage devices, applied in memory systems, instruments, electrical digital data processing, etc., can solve problems such as inability to adapt to devices, complex software operations, and system performance that greatly affects security data, avoiding reading and writing. and destruction effect

Inactive Publication Date: 2018-02-06
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The software encryption / decryption method has a great impact on system performance and cannot avoid the destruction of secure data by malware
The software operation of the storage side isolation method is more complicated and cannot be adapted to some current interface types of devices

Method used

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  • Memorizer partition isolating method and device and electronic device
  • Memorizer partition isolating method and device and electronic device

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. 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.

[0032] The present invention provides a method for memory partition isolation, such as figure 1 As shown, the method includes:

[0033] S11. Before performing read and write operations on the specified logical block address of the external storage device, construct a read and write operation command including the specified logical block addr...

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Abstract

The invention provides a memorizer partition isolating method and device and an electronic device. The method includes the steps of before read-write operation is conducted on the designated logic block address of an external storage device, establishing a read-write operation command containing a designated logic block address, judging whether the read-write operation command has execute permission or not, and correspondingly processing the read-write command according to the result of judgment on whether the read-write operation command has execute permission or not. The access of software to an unauthorized logic block address can be stopped under a limited scene, the read-write and damage of malicious software to secure data are effectively avoided, and the influences on system performance are small.

Description

technical field [0001] The present invention relates to the technical field of storage data protection, in particular to a storage partition isolation method, device and electronic equipment. Background technique [0002] As a commonly used data storage medium, external storage devices store data that is often accessed by electronic devices. In order to protect sensitive information and important data stored in external storage devices, data security protection must be implemented for each storage access operation. A commonly used method is to partition and isolate the storage space, and divide the storage space into an area as a storage space for confidential data. The LBA (Logical Block Address) corresponding to this confidential storage space is an unauthorized LBA area. [0003] In order to access the data in the secure storage space, commonly used methods include software encryption / decryption method and storage side isolation method. The software encryption / decryption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14
CPCG06F12/1458
Inventor 蒋燚
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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