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System and method for presetting Widevine Keys in television in batched mode

A TV and batch technology, which is applied in the field of smart TV parameter setting, can solve problems such as easy to be stolen, no way to mass produce, and low key data security, so as to improve security and prevent illegal theft and embezzlement

Active Publication Date: 2018-03-16
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, solution manufacturers will only provide Widevine Key single debugging method, which cannot be applied to mass production, and the key data preset in the terminal is less secure and easy to be stolen

Method used

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  • System and method for presetting Widevine Keys in television in batched mode
  • System and method for presetting Widevine Keys in television in batched mode
  • System and method for presetting Widevine Keys in television in batched mode

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Experimental program
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Effect test

Embodiment

[0039] Such as figure 1 As shown, the method for batch preset Widevine Key in the TV set in this embodiment includes the following steps:

[0040] A. Decompose and encrypt the original Key data obtained from the Google website using a script program. The decomposed single Key file has the same length and is encrypted data. Even if it is stolen, there is no corresponding key algorithm to decrypt it. Not available;

[0041] B. Use the parallel port programming tool, configure the corresponding parameters, and burn the Key data to the designated position of the motherboard eeprom;

[0042] C. After the TV is powered on, the system detects whether the current system has generated key data through its own module. If no data is detected, the key will be obtained from the eeprom. After script decryption, file generation, and re-encryption, the unique serial number of the IC is bound. Finally, the KeyBox file is generated, which is the Widevine key. Because this data is bound to the...

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Abstract

The invention relates to a smart television parameter setting technology, and discloses a system and method for presetting Widevine Keys in a television in a batched mode. The system and method can beapplied to batched presetting of the Widevine Keys in complete television production links, and the security of Key data is improved. The method comprises the steps that 1, an original Key data packet is partitioned, and the partitioned Key data is subjected to encryption processing; 2, burning parameters are configured, and the encrypted Key data is burnt into an eeprom of the television througha burner; 3, the Key data is read from the eeprom of the television, and after the Key data is processed, secret key data used for decryption during network video playing is generated and stored; and4, the television detects whether or not the secret key data used for decryption during network video playing is stored after the television is powered on, and if the secret key data is not stored, the step 3 is conducted.

Description

technical field [0001] The invention relates to an intelligent TV parameter setting technology, in particular to a system and method for presetting WidevineKeys in batches in a TV. Background technique [0002] Widevine is a new DRM digital rights management solution launched by Google. At present, video service websites such as Yutube and Netflix use this technology to protect copyright owners from piracy. The working principle of Widevine encryption technology is to establish a data authorization center. The key is used for encryption and protection. When the user plays the network video, according to the KeyID and URL information in the video header, the relevant key can be sent to decrypt the content after passing the verification and authorization of the data authorization center, so that the content can be played. The video that needs to be protected is encrypted. Even if it is downloaded and saved by the user, it cannot be played without the verification and authori...

Claims

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Application Information

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IPC IPC(8): H04N21/4627H04N21/443
CPCH04N21/443H04N21/4627
Inventor 胡雪菲
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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