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Method for security transmission of card number information from IP terminal to soft switch

A softswitch, terminal number technology, applied in the field of communication, can solve problems such as slow speed, and achieve the effect of expanding the scope

Inactive Publication Date: 2009-04-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: to overcome the disadvantages of the existing IP terminal, such as the slow speed caused by the operation of playing prompts in the process of using the card number call, and to provide a method for safely transmitting the terminal and card number information from the IP terminal to the IP terminal. The method of the soft switch equipment, so as to realize the fast and safe communication between the IP terminal and the soft switch, and realize the authentication of the card number of the IP terminal by the Radius server

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Below in conjunction with embodiment the present invention is described in further detail:

[0024] The invention improves the CHAP mode used in the SIP and H.323 protocols, utilizes the expansion of the INVITE / ARQ message in the protocol, and realizes securely transmitting the password of the terminal itself and the password of the card number in one INVITE / ARQ message.

[0025] Because the terminal ID and password are generally controlled by the softswitch system, and the card number system generally exists on the Radius server outside the softswitch system, and the MD5 algorithm is irreversible (that is, the original string cannot be extracted from the encrypted string). password, the correctness of the password can only be judged by calculating the encrypted string with the same algorithm and comparing the consistency of the results of the two operations). In this way, in order to resolve the card number and password on the Radius server outside the softswitch syste...

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PUM

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Abstract

It is a method to send card message from IP terminal to flexible exchanger, which is the following: to extend SIP or multimedia communication system agreement; to add card string to the INVITE message of SIP agreement or ARQ message in H.323 to store card message; to use INVITE or ARQ unused standard string to store card message; to form a code string through exclusion OR between card code and certain fixed key at the IP terminal and put it to the code string; the flexible exchanger receives the message and goes with exclusion OR between fixed key and code string value to analyze the card code.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for securely transmitting card number information from an IP terminal to a soft switch device. Background technique [0002] The development of NGN (Next Generation Network) requires IP terminals (voice / multimedia communication terminals based on Session Initiation Protocol SIP, packet-based multimedia communication system protocol H.323, etc.) to provide more functions, one of which is the ability to use card numbers Make a call. In the process of using the card number to call, the traditional method is to use the IVR (Interactive Voice Response) playback system. After dialing the access code (such as 17909), the user is prompted to enter the card number password. The IP terminal first dials the access code and listens. After hearing the prompt tone, input the card number and password in turn, and the IP terminal sends the password to the soft switch using audio ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/00H04L9/32H04Q3/545H04Q3/00
Inventor 张毅埔莱萨纳
Owner HUAWEI TECH CO LTD