Electronic equipment and its data encryption method and data deciphering method

A technology for electronic equipment and data encryption, applied in data recording, digital recording/reproducing, digital signal formatting, etc., can solve the problems of user data leakage, cannot prevent user data from reading, etc., and achieve the effect of preventing illegal reading.

Active Publication Date: 2010-06-02
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the storage medium is lost or stolen, since the identification code of the storage medium has not changed, the traditional method of preventing copying cannot prevent the reading of user data, which may lead to user data leakage

Method used

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  • Electronic equipment and its data encryption method and data deciphering method
  • Electronic equipment and its data encryption method and data deciphering method
  • Electronic equipment and its data encryption method and data deciphering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] see figure 1 , which is a schematic diagram of the electrical device 100 . The electronic device 100 is used to encrypt and store user data on a storage medium to prevent the user data from being illegally read. The storage medium may be an optical disc 10 , a memory card 20 or a floppy disk 30 . The electronic device 100 includes an interface module 102 , an encryption and decryption module 104 , a codec module 106 , an access module 108 and a storage module 110 .

[0018] The interface module 102 is used for connecting with external devices. To receive the user data that needs to be stored and send the received user data to the encryption and decryption module 104; or output the decrypted user data.

[0019] The encryption and decryption module 104 is connected to the interface module 102 and the storage module 110. The storage module 110 stores predetermined data for encrypting and decrypting user data. The predetermined data is associated with the electronic devic...

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PUM

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Abstract

The invention relates to an electronic device, comprising an interface module, an encrypting-decrypting module, a storing module, an encoding-decoding module and an accessing module. The storing module is used for storing pre-set data. The encrypting-decrypting module is respectively connected with the interface module, the storing module and the encoding-decoding module. The encrypting-decryptingmodule is used for encrypting the received user data from the interface module by using the pre-set data and transferring the encrypted data to the encoding-decoding module for encoding and then theencoded data are stored into a storing medium by the storing module. The encrypting-decrypting module is also used for decrypting the received user data from the encoding-decoding module by using thepre-set data and transferring the decrypted data to the interface module to be output. Taking the pre-set data in the electronic device as an encrypted code can effectively avoid the illegal reading of the user data because other electronic devices cannot obtain the corresponding encrypted code and then cannot read the encrypted user data even though the storing medium is lost. Moreover, the invention also provides a data encrypting method and a data decrypting method.

Description

technical field [0001] The invention relates to an electronic device and a data encryption method and a data decryption method thereof, in particular to an electronic device for reading and writing data in a storage medium and a data encryption method and a data decryption method thereof. Background technique [0002] The development of modern electronic information technology has made electronic equipment more and more widely used in people's work and life. A variety of electronic devices are used to convert photos. Documents, audio and video and other user data are recorded on the storage medium. For example, currently there are many kinds of optical disc recorders that can record these user data on optical discs, and the optical discs are popular in the market because they are cheap and can save user data for a long time. In addition, a variety of flash memory cards are also widely used to store user data that needs to be moved or temporarily stored due to the convenien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/00G11B20/12
CPCG11B20/0026G11B20/00086G11B2220/2537G11B20/0021G11B20/00195G11B20/00246G11B2220/2512
Inventor 黄宏志
Owner HANGZHOU HIKVISION DIGITAL TECH
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