本文選題：SIP + 協(xié)議棧　； 參考：《中國(guó)科學(xué)院大學(xué)（工程管理與信息技術(shù)學(xué)院）》2014年碩士論文

【摘要】：隨著無(wú)線(xiàn)局域網(wǎng)(WLAN)的普及和智能終端的價(jià)格進(jìn)一步降低,基于WLAN的電話(huà)應(yīng)用會(huì)帶來(lái)通訊費(fèi)用的降低�；跓o(wú)線(xiàn)局域網(wǎng)的VoIP (Voice over Internet Protocol),更接近人使用手機(jī)便利交流的場(chǎng)景,且不再需要電信運(yùn)營(yíng)商的參與,可以靈活地將語(yǔ)音和數(shù)據(jù)進(jìn)行完美的融合,降低通訊費(fèi)用,其中SIP(Session Initiation Protocol會(huì)話(huà)初始化協(xié)議)協(xié)議為其中的最核心協(xié)議。 本文對(duì)VoIP中最關(guān)鍵的信令協(xié)議SIP協(xié)議進(jìn)行了實(shí)現(xiàn)。首先對(duì)SIP進(jìn)行編解碼,根據(jù)ABNF(擴(kuò)展的巴科斯范式)范式對(duì)SIP消息進(jìn)行解析,并實(shí)現(xiàn)SIP協(xié)議棧。然后基于SIP協(xié)議棧實(shí)現(xiàn)注冊(cè)服務(wù)器和代理服務(wù)器功能,出于對(duì)網(wǎng)絡(luò)安全的考慮,實(shí)現(xiàn)了摘要認(rèn)證功能,并對(duì)注冊(cè)數(shù)據(jù)庫(kù)的進(jìn)行設(shè)計(jì)與實(shí)現(xiàn)。 作者完成的主要工作如下： (1)首先完成基礎(chǔ)組件的設(shè)計(jì)與實(shí)現(xiàn),封裝了各種平臺(tái)的差異；并根據(jù)標(biāo)準(zhǔn)規(guī)范實(shí)現(xiàn)了有狀態(tài)的SIP協(xié)議棧,包括語(yǔ)法和編碼模塊、傳輸模塊、事務(wù)處理模塊。 (2)基于ElkSIP (Elk SIP)協(xié)議棧實(shí)現(xiàn)了注冊(cè)服務(wù)器和代理服務(wù)器。并實(shí)現(xiàn)了摘要認(rèn)證算法來(lái)認(rèn)證用戶(hù),用計(jì)算所得而不用明文方式來(lái)保存口令值,這樣可以有效的避免密碼泄露帶來(lái)的安全問(wèn)題。 (3)使用各種畸形消息報(bào)文測(cè)試工具對(duì)協(xié)議棧進(jìn)行測(cè)試驗(yàn)證。 該項(xiàng)目托管在googlecode上,項(xiàng)目代碼開(kāi)源并以Apache許可協(xié)議方式發(fā)布,并使用開(kāi)源的開(kāi)發(fā)組織方式進(jìn)行開(kāi)發(fā)。用戶(hù)可以基于ELKSIP協(xié)議棧及服務(wù)器開(kāi)發(fā)出面向中小型企業(yè)級(jí)市場(chǎng)的企業(yè)無(wú)線(xiàn)通訊系統(tǒng),以高性?xún)r(jià)比、且有自主知識(shí)產(chǎn)權(quán)的WIPPBX(無(wú)線(xiàn)IPPBX)來(lái)滿(mǎn)足企業(yè)的實(shí)時(shí)通訊交流需求。該系統(tǒng)中的協(xié)議棧也可以為物聯(lián)網(wǎng)等應(yīng)用領(lǐng)域提供系列化產(chǎn)品。
[Abstract]:With the popularity of WLAN (WLAN) and the lower price of intelligent terminals, WLAN-based telephone applications will bring lower communication costs. VoIP Voice over Internet Protocol based on WLAN is closer to the scene where people use mobile phones to facilitate communication, and no longer need the participation of telecom operators, can flexibly integrate voice and data perfectly, and reduce communication costs. The session initiation Protocol (SIP) protocol is the core protocol. This paper implements SIP protocol, which is the key signaling protocol in VoIP. Firstly, the SIP is encoded and decoded, and the SIP message is parsed according to the ABNF (extended Barkos normal form) paradigm, and the SIP protocol stack is implemented. Then, based on SIP protocol stack, the functions of register server and proxy server are realized. For the sake of network security, the function of summary authentication is realized, and the registration database is designed and implemented. The main work accomplished by the author is as follows: firstly, the design and implementation of the basic components are completed, and the differences of various platforms are encapsulated, and a stateful SIP protocol stack, including syntax and coding modules, is implemented according to the standard specification. Based on Elk SIP / Elk SIP protocol stack, register server and proxy server are implemented. A digest authentication algorithm is implemented to authenticate the user, and the password value is saved by computing without using plaintext. This can effectively avoid the security problems caused by password disclosure. The project is hosted on googlecode, the project code is open source and released under the Apache license agreement, and developed using an open source development organization. Based on ELKSIP protocol stack and server, users can develop wireless communication system to small and medium-sized enterprise market. WIP PBX (Wireless IP PBX) with high performance and price ratio and independent intellectual property can meet the real-time communication needs of enterprises. The protocol stack in the system can also provide serial products for applications such as the Internet of things.
【學(xué)位授予單位】：中國(guó)科學(xué)院大學(xué)（工程管理與信息技術(shù)學(xué)院）
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN925.93

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本文編號(hào)：2011378