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Encryption method and device for recording files

An encryption device and encryption method technology, applied in electrical components, image communication, selective content distribution, etc., can solve problems such as increased probability, copyright infringement, etc., to avoid copyright disputes and increase international competitiveness.

Active Publication Date: 2015-12-23
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an encryption method and device for recording files, aiming to solve the problem that the PVR files recorded by two electronic devices of the same model can be played back to each other, which leads to an increase in the probability of copyright infringement

Method used

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  • Encryption method and device for recording files
  • Encryption method and device for recording files
  • Encryption method and device for recording files

Examples

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Embodiment 1

[0022] figure 1 A flow chart of an encryption method for burning files provided in the first embodiment of the present invention is shown, and the details are as follows:

[0023] Step S11, obtaining the KSV serial number of the electronic device through the two-wire serial bus I2C.

[0024] In this step, the KSV serial number (video encryption key) is pre-stored in an electronic device equipped with a High Definition Multimedia Interface (HDMI) or a Digital Video Interface (DVI). In order to ensure that the high-definition signals transmitted by HDMI or DVI will not be illegally recorded, High-bandwidth Digital Content Protection (HDCP) technology has emerged. The HDCP technical specification is led by Intel. When users make illegal copies, this technology will interfere and reduce the quality of the copied images, thereby protecting the content. Each HDCP device will have a unique KSV serial number, and the cryptographic processing units at the sending end and the receivin...

Embodiment 2

[0039] figure 2 The structure of an encryption device for burning files provided by the second embodiment of the present invention is shown. For convenience of description, only the parts related to the embodiment of the present invention are shown.

[0040] The encryption device for recording files can be used for various information processing terminals connected to servers through wired or wireless networks, such as televisions, computers, notebook computers, etc., and can be software units, hardware units or software units running in these information processing terminals. The unit combined with hardware can also be integrated into these information processing terminals as an independent pendant or run in the application systems of these information processing terminals.

[0041] The encryption device for burning files includes: an I2C bus 21 , an encryption key generation unit 22 , and an encryption unit 23 . in:

[0042] The I2C bus 21 is used to obtain the KSV serial...

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Abstract

The invention is suitable for the field of electronic device recorded data security and provides a method and device for encrypting recorded documents. The encryption method includes: key selection vector (KSV) serial number of an electronic device is obtained through a two-wire serial bus 12C; an encryption key for encrypting the recorded documents is generated according to the obtained KSV serial number; information output by the electronic device is obtained, the information output by the electronic device is encrypted by the generated encryption key so as to obtain the encrypted recorded documents. The method and device for encrypting recorded documents guarantees that the electronic device can only plays documents recorded by the electronic device, avoids copyright disputes caused by personal video recorder (PVC) document transmission, protects electronic device manufacturers well, and improves international competitiveness of the electronic device manufacturers.

Description

technical field [0001] The invention belongs to the field of recording data security of electronic equipment, and in particular relates to an encryption method and device for recording files. Background technique [0002] With the popularization of digital TV at home and abroad, the function of personal video recorder (PVR) as a standard configuration function of digital TV has also entered thousands of households in foreign countries. [0003] However, if the video recorded in one electronic device (such as TV) can also be played in other electronic devices, it will involve copyright infringement. The general practice in the existing electronic device (such as TV) software is to convert The file format generates a special format according to the requirements of different electronic equipment manufacturers, so that the PVR files of different electronic equipment manufacturers are not compatible with each other and cannot be played with each other. [0004] However, the exis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/10H04N21/4147
Inventor 熊跃平徐永桥刘威陈敏锐
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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