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Machine card separated acoustic code encryption telephone set system

A machine-card separation and encrypted phone technology, applied in prepaid phone system, unauthorized/fraudulent phone call prevention, user identity/authority verification, etc., can solve problems such as high price and complex key management

Inactive Publication Date: 2014-03-26
BEIJING BINGGANG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such products have appeared in domestic and foreign markets, but so far, such products have not been widely used in the market due to high prices and complicated key management

Method used

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  • Machine card separated acoustic code encryption telephone set system
  • Machine card separated acoustic code encryption telephone set system
  • Machine card separated acoustic code encryption telephone set system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The machine-card separation voice code encrypted telephone system is composed of an encrypted identity card certificate issuing center, a U card and a voice code encrypted telephone. Among them, the encrypted identity card certificate issuing center is divided into a first-level certificate issuing center 100 and a second-level certificate issuing center 200 (not shown in the figure), and the U secret card is divided into two types, the advanced intelligent U[1] secret card 300 and Ordinary intelligent U[2] secret card 400 (not shown in the figure);

[0082] Such as figure 1 The first-level certificate issuing center 100 of the present invention is shown to be composed of a user PIN data server 101, a key management server 102, a No. 1 terminal 103, a No. 1 card reader 104, and a U social user group 105 (not shown in the figure).

[0083] Similarly, the secondary certificate issuing center 200 is composed of a key management server 201, a No. 2 terminal 202, a No. 2 ca...

Embodiment 2

[0087] The difference between this embodiment and Embodiment 1 is that the voice code telephone set is a portable voice encryption machine, and the circuit of the portable voice encryption machine is exactly the same as the digital processing part of the landline voice code encryption telephone set 500, only adding interface with ordinary telephones. Such as Figure 5 As shown, the encryption vocoder 600 of the portable voice encryption machine is respectively connected to the ordinary telephone set 601 and the PSTN telephone network 602, and one of the advanced intelligent U[1] encryption card 300 and the ordinary intelligent U[2] encryption card 400 is inserted into the Encrypted vocoder 600.

[0088] see Figure 6 , the encrypted vocoder 600 is composed of voice signal A / D, D / A switching circuit, CPU and MODEM connected sequentially, wherein the voice signal A / D, D / A switching circuit is connected to advanced intelligent U[1] secret card 300 and One of common intelligent...

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Abstract

The invention provides a machine card separated acoustic code encryption telephone set system, comprising an encrypted ID card certificate issuing center, a U encryption card and an acoustic code encryption telephone set. The encrypted ID card certificate issuing center is an authoritative department, and is also a third-party certification department, which comprises a user data server, a key management server, a login terminal and an imprinter, is divided into a primary certificate issuing center and a secondary certificate issuing center, is in off-line working with PSTN network, and has no relation with the PSTN network. Compared with the prior art, the invention has the advantages that the system adopts precautionary measures to prevent certificates from being falsified and forged, so that certificates of both talking parties can not be forged and can not be bugged.

Description

technical field [0001] The invention relates to a communication security device, in particular to a machine-card separation type sound code encryption telephone system. Background technique [0002] The communication industry in today's world is developing with each passing day, and various communication technologies emerge in an endless stream. However, no matter how the communication technology changes and updates, the most direct and widely used means of human communication is still voice communication. With the development of various technologies such as telephone from fixed form to mobile form, from PSTN (Public Switched Telephone Network) form to mobile phone mobile communication form, the security technology and means of voice communication are also undergoing profound changes. In order to meet the needs of voice communication security, people have developed various types of voice security equipment. [0003] The invention patent with the patent number of 20061004116...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04M1/66H04M1/675
Inventor 张丽艳徐斗勋王好礼
Owner BEIJING BINGGANG TECH DEV CO LTD