具鑑別性之代理盲簽章設計

數位簽章為網路世界中的重要設計，用以辨識及確認電子文件簽署人身分、資格及電子文件真偽者。其中代理盲簽章更是客製化的應用，結合代理簽章及盲簽章的概念，適合於電子商務上，例如：電子投票、電子交易…等。在電子商務的環境中，經常需在短時間內處理一筆電子交易的紀錄；因此，通訊安全及計算成本顯得格外重要。本研究提出可同時簽章和鑑別加密的代理盲簽章演算法，除了增加鑑別性外，又補強了不可否認性，並運用模擬實作方式驗證此演算法之可行性，且與先前演算法分析比較，證明此研究不僅能達到所有安全性要求，也能減少計算成本，提升運算效率，以利爾後實務上運用。

關鍵字

鑑別性；代理盲簽章；鑑別加密法

並列摘要

Digital signature is one of the important designs in the internet world. Its purpose is to confirm signer's identity, qualification level and authenticity. Blind proxy signature, the concept of combining proxy signature and blind signature, can be applied customized in e-business, such as digital voting, digital trade etc. Digital trading often needs to be processed in a short amount of time in E-business environment; thus, communication safety and calculation cost are especially important. This research proposed an authenticated encryption design that can process signature and encryption at the same time. Other than incorporating authenticated design, it also strengthens its non-repudiation. Through real life simulation, we're able to verify its feasibility and analyzing it compare with former calculation method; hence, demonstrating such research will not only reach all the safety requirements, but also increases calculation efficiency and minimize the cost in order to apply it in real life situation.

並列關鍵字

Authenticity ； Blind Proxy Signature ； Authenticated Encryption

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