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Method for authenticating upgrade information with digital watermark

A technology of upgrading information and digital watermarking, which is applied in the field of communication, and can solve problems such as station name upgrading information affecting the normal update of safe receiving chips, and achieve high security, convenient operation and implementation, high reliability and security effects

Active Publication Date: 2008-02-13
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • 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

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Embodiment Construction

[0024] With reference to Fig. 1 to Fig. 4, the inventive method comprises steps:

[0025] With reference to Fig. 1 to Fig. 4, the inventive method comprises 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 need ...

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PUM

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Abstract

The invention discloses a method that upgrading information is identified by a digital watermark and relates to a digital information processing technology used to improve information reliability of satellite digital television in communication field. According to the existing related standard and technology of satellite digital television, a front-end control system of the invention embeds the digital watermark into station name upgrading information, and the invention sends a corresponding order to a safety receiving chip and controls the safety receiving chip to detect digital watermark in upgrading information. With the method, the invention has the advantages that the invention can control and operate identification operation of upgrading information in upflowing system, prevent the station name upgrading information from being tampered, improve reliability of the station name upgrading information, and ensure normal upgrading. Therefore, the invention can further enhance management and control on 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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IPC IPC(8): H04N7/16H04N7/24H04L29/06
Inventor 田素雷周永川
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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