Method for designing and implementing digital watermark for GSM short message business

A digital watermarking and short message technology, applied in wireless communication, electrical components, security devices, etc., can solve problems such as inability to short message source and content authentication, and achieve the effect of reducing negative effects

Inactive Publication Date: 2015-08-19
NANJING INRICH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiency that the existing GSM mobile phone cannot authenticate the source and content of the short message, the present invention provides a design method for digital watermark of the short message service of the GSM system

Method used

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  • Method for designing and implementing digital watermark for GSM short message business
  • Method for designing and implementing digital watermark for GSM short message business

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] exist figure 1 Among them, the mobile phone (1) that sends the SMS submits the SMS (8) to the receiving SMS base station (2), and the receiving SMS base station (2) sends the received SMS (8) to the SMS receiving interface (3) on the core side, and the SMS receiving interface ( 3) Send the SMS to the digital watermark server (4), and the digital watermark server (4) will add the digital watermark (9) to the SMS (8) and send it to the SMS transmitting interface (5), and the SMS transmitting interface (5) will add the digital The credible short message (11) of the watermark (9) is sent to the short message sending base station (7), and the short message sending base station (6) sends the credible short message (11) to the short message receiving mobile phone (7).

[0017] exist figure 2 Among them, the mobile phone (7) receiving the text message (7) receives the text message (8), the mobile phone receiving the text message (7) starts the recognition software, and the re...

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Abstract

The invention provides a method for generating a digital watermark for GSM short messages. The method comprises the steps: a short message service center of a service provider inserts the digital watermark in a time stamp (TP-SCTS) of a PDU data package, wherein the digital watermark is generated by a return address (TP-RA) and user information (TP-UD) through HUSH operation, an A3 algorithm and unidirectional mapping operation; a receiving cellphone employs recognition software to detect the digital watermark, and determines whether a short message is from the service provider or not.

Description

technical field [0001] The invention relates to a design and realization method of a digital watermark for short message service of a GSM system, in particular to a method for adding an invisible digital watermark in a protocol data unit. Background technique [0002] GSM (Global System For Mobile Communication) is a standard introduced by the European Committee for Standardization in 1992. It adopts digital communication technology and unified network standards. Since GSM is the second generation of mobile communication technology compared to analog mobile communication technology, it is referred to as 2G. [0003] Short message (short message service), referred to as SMS, also called short message. It is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals. [0004] Protocol Data Unit (PDU), referred to as PDU, is one of the three methods used to send short messages in the GSM system, and is mainly used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/14H04W12/02
CPCH04W4/14H04W12/02
Inventor 吴斌姚冰心
Owner NANJING INRICH TECH
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