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Method for authenticating upgrade information with digital watermark

A technology for upgrading information and digital watermarking, applied in the field of communication, can solve the problem that the upgraded information of the station name affects the normal update of the secure receiving chip, etc., and achieves the effects of high security, low investment cost, and convenient operation and management.

Active Publication Date: 2009-08-26
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the station name upgrade information may be tampered by criminals and affect the normal update of the secure receiving chip. Therefore, to eliminate this hidden danger, it is necessary to use authentication measures for the station name upgrade information to prevent the station name upgrade information from being tampered with and improve the security of the station name upgrade information. reliability

Method used

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  • Method for authenticating upgrade information with digital watermark
  • Method for authenticating upgrade information with digital watermark
  • Method for authenticating upgrade information with digital watermark

Examples

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Embodiment Construction

[0024] refer to Figure 1 to Figure 4 , the inventive method comprises the steps:

[0025] refer to Figure 1 to Figure 4 , the inventive method comprises the steps:

[0026] ① The station name upgrade information is generated by the front-end control system,

[0027] ②The front-end control system embeds the digital watermark into the station name upgrade information, and generates a control command sent to the secure receiving chip,

[0028] ③ The front-end control system packs the station name upgrade information and control commands into a transport stream format conforming to the MPEG-2 standard,

[0029] ④The front-end control system packages the transmission stream into TCP / IP format and transmits it to the multiplexer through Ethernet,

[0030] ⑤ The multiplexer extracts the station name upgrade information and control commands in the TCP / IP packet, and multiplexes the station name upgrade information embedded in the digital watermark and the control commands that n...

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Abstract

The invention discloses a method for authenticating upgrade information by using a digital watermark, which relates to a digital information processing technology for satellite digital TV in the communication field to improve information reliability. According to the existing related standards and technologies of satellite digital TV, the front-end control system embeds the digital watermark into the upgrade information of the station name, and sends corresponding commands to the security receiving chip to control the security receiving chip to detect the digital watermark in the upgrade information. The advantage of applying this method is that the authentication operation of the station name upgrade information can be controlled in the uplink system, which prevents the station name upgrade information from being tampered with, improves the reliability of the station name upgrade information, and ensures that the station name upgrade information can be upgraded normally. Therefore, the present invention can further strengthen the management and control of satellite digital television broadcasting.

Description

technical field [0001] The invention relates to a method for authenticating upgrade information with digital watermarks in the field of communication. It is especially suitable for authenticating the upgrade information of the secure receiving chip station name in the uplink system control, preventing the upgrade information of the station name from being tampered with, and improving the upgrade information of the station name. Reliability of updated information. Background technique [0002] The safe receiving chip compares the received program name with the legal name stored in the chip, allows the program transmission stream that is allowed to be received to pass through, filters out the program transmission stream that is not allowed to be received, and achieves the purpose of controlling the satellite TV program signal. [0003] The station name upgrade method can be used to update the station name information in the secure receiving chip at the receiving end in the upl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/16H04N7/24H04L29/06
Inventor 田素雷周永川
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP