網路協定電視（Internet Protocol Television，IPTV）正在成為一個平台，改變我們獲取資訊與娛樂的方式，並可提供互動功能及個人化服務（Personalized Services）。儘管IPTV服務供應商能透過機上盒（Set-top Box，STB） 獨特的硬體識別碼，執行電視觀眾識別與身分鑑別來驅動個人化服務，但此基於機上盒之認證導致整個家庭成員皆取得相同的存取權限及服務，這表明與IPTV欲提供個人化服務的目標不一致。
隨著智慧型手機的普及且近場通訊（Near Field Communication，NFC）技術逐漸成為其標準配備，本文提出基於NFC手機之主機卡模擬（Host Card Emu-lation，HCE）技術的使用者身分鑑別機制，並設計兩套身分鑑別方案。第一個方案植基於金鑰雜湊訊息鑑別碼（Keyed-hash Message Authentication Code，HMAC），具有輕量化、低成本的優點；另一個則以數位簽章（Digital Signature）為基礎，此方案尤其適用於設計開放式服務的環境。經實驗與分析表明，本機制可滿足安全性需求並提供良好的系統易用性、可部署性及服務擴展性，適用於IPTV環境下的個人化服務，並易於部署至現有的IPTV系統。

Internet Protocol Television (IPTV) is becoming a platform that changes the way we obtain information and entertainment, and offers interactive features and person-alized services. Although IPTV service providers can perform TV viewer identifica-tion and authentication through a unique hardware identifier of the Set-top box (STB), it is based on STB-level identification leads to whole family members get the same access level and services. This indicates that existing authentication schemes are in-consistent with IPTV's main intent of providing personalized services.
Smartphones with NFC (Near Field Communication) capabilities have grown to become very popular over the years. The NFC-based user authentication mechanisms by using HCE (Host Card Emulation) technology, and two authentication schemes are presented in this thesis. The first is the HMAC-based authentication scheme with lightweight operations and relatively low cost. The second is the Digital Signa-ture-based authentication scheme that it particularly applies to design open IPTV ser-vices. In this thesis, the experiments and analysis show that the proposed mechanisms can meet the security requirements and provide great system usability, deployability and service scalability for personalized IPTV services. The proposed mechanisms are suitable for personalized IPTV services and able to be easily deployed onto current IPTV systems.

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