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Method and device for reading and writing data

A data read/write, data key technology, applied in the storage field, can solve the problems of ineffective data protection, data replication, modification loss, etc.

Active Publication Date: 2018-04-20
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing process of reading and writing the data stored in the mobile storage device, the read and write data cannot be effectively protected, which may cause the data stored in the mobile storage device to be copied and modified by illegal users, resulting in unnecessary losses

Method used

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  • Method and device for reading and writing data
  • Method and device for reading and writing data
  • Method and device for reading and writing data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] see figure 2 , the embodiment of the present invention provides a method for reading and writing data, and the method flow includes:

[0067] Step 200, acquiring a data read and write command, where the data read and write command includes authentication information.

[0068] Wherein, the data read and write instructions are used to perform read and write operations on multimedia data or interactive information stored in the mobile storage device. The authentication information is used by the mobile storage device to verify the legality of the data read and write instructions before allowing the user who triggers the data read and write instructions to perform the data read and write operations.

[0069] Step 201, verify the legitimacy of the data read / write instruction according to the obtained authentication information.

[0070] Specifically, after the authentication information of the data read-write instruction is obtained, the verification information for verif...

Embodiment 2

[0077] see image 3 , the embodiment of the present invention provides a method for reading and writing data, and the method flow includes:

[0078] Step 300, the mobile storage device acquires a data read / write instruction, and the data read / write instruction includes authentication information.

[0079] Specifically, when the user wants to perform read and write operations on encrypted data stored in the mobile storage device, the data read and write command is triggered by the input device of the terminal connected to the mobile storage device, and the terminal will read and write the data triggered by the user. Transfer to a removable storage device.

[0080] Wherein, the terminal includes but is not limited to: computers, mobile terminals and other devices that can be connected to mobile storage devices.

[0081] Terminal input devices include, but are not limited to: keyboard, mouse, touch screen, and microphone.

[0082] Among them, the data read and write instructio...

Embodiment 3

[0128] see Figure 5 , the embodiment of the present invention provides a data reading and writing device, the device includes:

[0129] The first obtaining module 500 is used to obtain data read and write instructions, and the data read and write instructions include authentication information;

[0130] A verification module 501, configured to verify the legitimacy of the data read and write instructions according to the obtained authentication information;

[0131] The first calculation module 502 is used to obtain the data key through calculation if it is determined that the data read and write instruction is legal;

[0132] The first processing module 503 is configured to perform read and write operations on encrypted data according to the obtained data key.

[0133] Specifically, the verification module 501 is configured to:

[0134] Obtain pre-stored verification information;

[0135] judging whether the authentication information is consistent with the verification ...

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Abstract

The invention discloses a data read-write method and a data read-write device, and belongs to the field of a storage technology. The method comprises the steps of acquiring a data read-write command, wherein the data read-write command comprises authentication information; verifying the legality of the data read-write command in accordance with the authentication information obtained; obtaining a data encryption key by calculation if the data read-write command is determined to be legal; and reading and writing the data in accordance with the obtained data encryption key. According to the method, the read-write data can be effectively protected by performing the read-write operation on data by a data decryption key obtained by calculation under the condition of verifying the data read-write command to be legal by the authentication information, and the defects of unnecessary losses caused by copying and modifying the data stored in a portable storage device by illegal users can be prevented.

Description

technical field [0001] The invention relates to the technical field of storage, in particular to a method and device for reading and writing data. Background technique [0002] The mobile storage device enables users to back up and use data and files between different terminals. When users want to use the data and files stored in the mobile storage device, they can connect the mobile storage device to the terminal for use, which is convenient and quick. [0003] The existing scheme of using mobile storage devices for data reading and writing is that the mobile storage device receives the data reading and writing instructions triggered by the user, and then transmits the data reading and writing instructions to the data reading and writing interface according to the received data reading and writing instructions. Address mapping, find out the storage address of the data to be read and written, and perform read and write operations on the data according to the obtained data s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62
CPCG06F21/6209
Inventor 邓中亮林文亮李宁韩可段锦锦侯云龙张璘
Owner BEIJING UNIV OF POSTS & TELECOMM
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