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Digital television software mixed check and encryption method

A technology of digital TV and encryption method, which is applied to electrical components, digital data protection, electrical digital data processing, etc. It can solve the problem that TV software cannot take into account verification speed and security, so as to improve customer experience and maintain stability , to achieve the effect of efficiency

Active Publication Date: 2018-04-13
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to propose a digital TV software hybrid verification encryption method to solve the problem that the TV software in the traditional technology cannot take into account the verification speed and security

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  • Digital television software mixed check and encryption method

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Embodiment

[0026] A packaging tool is designed on the front end, which supports two modes of software packaging output, mode 1: custom verification / encryption parameters, system calculation time-consuming; mode 2: specify time-consuming threshold, system automatically generates verification / encryption parameters . In mode 1, there are tabs for verification method 1, encryption method 1, verification method 2, and encryption method 2. You can choose from a variety of prefabricated verification algorithms and encryption algorithms, and there are percentage options for method 1 and method 2. This makes it easy to customize the percentage combination of the verification method and encryption method, thereby forming a verification and encryption scheme with high security and low-level collocation.

[0027] In mode 2, there is an additional tab for setting the time threshold, which is convenient for the system to automatically adjust the matching scheme of verification and encryption according...

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Abstract

The invention belongs to the field of digital television software encryption and check, discloses a digital television software mixed check and encryption method, and solves the problem that television software cannot give consideration to check speed and security in a conventional technology. The method comprises the following steps of a, at a digital television front end, determining encryptionand check algorithms, performing block segmentation on television software data, and generating corresponding description header information for each block according to the determined encryption and check algorithms, wherein different blocks adaptively adopt different check and encryption algorithms; b, performing encryption and check on the corresponding block according to the description headerinformation of each block by utilizing a packaging tool, and performing packaging and sending on complete television software data; and c, when a digital television terminal loads the television software data, firstly obtaining the description header information of each block, and then according to the description header information, performing decryption and check on the corresponding data block.The method is suitable for digital television software design.

Description

technical field [0001] The invention belongs to the field of encryption and verification of digital television software, and in particular relates to a hybrid verification and encryption method of digital television software. Background technique [0002] For a long time, in order to strengthen the security of the digital TV operating system, each digital TV operator will require the data integrity verification of the main program data before the operation of the digital TV operating system. The general method to ensure data integrity and integrity is to store the main program data in an encrypted manner in a non-volatile memory. After the chip is started, before loading the main program data into the memory, the data is decrypted by an algorithm and passed the verification. Algorithms verify data integrity. And it will take time to decrypt the data and verify the data, thus prolonging the start-up process of the digital TV and affecting the user experience. [0003] There...

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Application Information

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IPC IPC(8): G06F21/12G06F21/60H04N21/426H04N21/81
CPCG06F21/121G06F21/602H04N21/42684H04N21/8166
Inventor 程晓兰罗建丰
Owner SICHUAN CHANGHONG ELECTRIC CO LTD