itts audiovisual systems . interactive text transmission system 視聽系統(tǒng).交互式文本傳輸系統(tǒng)
http : hyper text transmission protocol, 超文本傳輸協(xié)議。
itts audiovisual systems-interactive text transmission system 聲圖信號(hào)傳輸系統(tǒng).人-機(jī)對(duì)話的文本傳輸系統(tǒng)
the article first analyses the major vulnerabilities of sip : plain text transmission of sip messages and the lack of effective mechanisms for identification, then do research on the security threats caused by the vulnerabilities of sip, including registration hijacking, impersonating a server, tampering with message bodies, tearing down sessions and denial of service . after setting up a sip communication platform in the laboratory environment, the article confirms the existence of security risks by using simulation attacking experiments 本文首先分析sip協(xié)議主要的脆弱性:sip消息明文傳送和缺乏有力的身份鑒定機(jī)制,以及由于這些脆弱性而引發(fā)的包括注冊(cè)劫持、服務(wù)器偽裝、消息篡改、拆卸會(huì)話和拒絕服務(wù)等的安全威脅,并通過在實(shí)驗(yàn)室環(huán)境下搭建的sip通信平臺(tái),進(jìn)行模擬攻擊實(shí)驗(yàn)來證實(shí)問題的存在性。