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Realization method of VoIP (Voice-over-IP) media stream trusted transmission based on Zimmermann Real-Time Transport Protocol key exchange

A technology of key exchange and media flow, which is applied in the field of realization of trusted transmission of VoIP media flow to achieve the effect of transparency

Inactive Publication Date: 2011-06-15
BEIJING JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

There are currently no research reports or software on applying remote proof of trusted computing to the ZRTP protocol

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  • Realization method of VoIP (Voice-over-IP) media stream trusted transmission based on Zimmermann Real-Time Transport Protocol key exchange
  • Realization method of VoIP (Voice-over-IP) media stream trusted transmission based on Zimmermann Real-Time Transport Protocol key exchange
  • Realization method of VoIP (Voice-over-IP) media stream trusted transmission based on Zimmermann Real-Time Transport Protocol key exchange

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Abstract

The invention discloses a realization method of VoIP (Voice-over-IP) media stream trusted transmission based on Zimmermann Real-Time Transport Protocol key exchange, comprising the following steps: a first user terminal receives a Hello-type message sent by a second user terminal, wherein the Hello-type message carries the Remote parameter value of the second user terminal, and the Remote parameter value is set by the second user terminal; the first user terminal sets the Remote parameter value as a Local parameter value; the first user terminal calculates a session key; after the first terminal receives a Commit-type message sent by the second user terminal, if the necessity of sending the verification information of the first user terminal to the second user terminal is judged according to the Local parameter value of the first user terminal, the verification information of the first user terminal is generated according to the session key and the platform information of the first user terminal and is sent to the second user terminal; after the second user terminal receives the verification information, a confirmation message is sent to the first user terminal; according to the received verification information of the first user terminal and the session key, the first user terminal is verified; and a Confirm-type message is sent to the first user terminal after the first terminal is qualified.

Description

A Realization Method of Trusted Transmission of VoIP Media Stream Based on ZRTP Key Exchange technical field The invention belongs to the field of computer information security, in particular to a method for realizing trusted transmission of VoIP media streams based on the ZRTP key exchange protocol. Background technique The increasing popularity of VoIP (Voice-over-IP) makes its security issues become important. SRTP (SecureReal-timeTransportProtocol, RFC3711) is a secure real-time transport protocol, which not only strengthens the confidentiality of VoIP media streams, provides message authentication and integrity protection, but also can resist replay attacks, but the SRTP protocol does not provide encryption key exchange mechanism. The ZRTP (draft-zimmermann-avt-zrtp-22) protocol is a key exchange protocol, and the communication parties can negotiate the session key and various algorithm parameters required by the SRTP protocol through the ZRTP protocol. The ZRTP pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M7/00H04L9/00H04L29/06
Inventor 常晓林秦英程勇韩臻刘吉强
Owner BEIJING JIAOTONG UNIV
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