Chuan-Yen Fan

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During these years, the research field of certificateless signature (CLS) scheme is promptly investigated as the key escrow problem in identity-based cryptography can be solved via CLS concept. However, due to the bandwidth limitation of mobile communication and the resource-constraint property of handheld mobile devices, most CLS schemes cannot fulfill the(More)
電腦和網際網路的誕生,讓人們的生活越來越便利。而隨著行動裝置的快速發展,人類 的生活方式更是產生了非常大的變革,不僅需要的資訊,信手拈來便可以獲得;許多企 業所提供的新興商品與服務交易,更是在彈指之間便可以順利完成。因此,如何在網際 網路上提供使用者方便、快速、彈性、可靠的身份驗證,並免除使用者記憶及輸入一大 堆用戶名稱及密碼的負擔,便成為一個重要的課題。本研究結合了關鍵詞驗證和語者驗 證技術,讓使用者不需要記憶及輸入冗長與煩雜的資訊,只要對著智慧型行動裝置說話, 身份辨識系統便可以在網際網路的環境中對使用者來進行身份驗證。我們以隱藏式馬可 夫模型和高斯混合模型分別實作了關鍵詞驗證模組與語者驗證模組,並以分散式架構實 作出雲端即時身份辨識系統。我們以 TCC-300 語料進行語者模型參數和訓練流程的調校(More)
During these years, the research field of certificateless signature (CLS) scheme without bilinear pairings is promptly investigated as the key escrow problem in identity-based cryptography can be solved via such concept. In this paper, we demonstrate that a certificateless signature scheme proposed by Gong and Li cannot fulfill its security claims. The(More)
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