公司治理是指一種指導及管理企業的機制，以落實企業經營人的責任，並保障股東的合法權益及兼顧其他利害關係人的利益。我國自1998年起向國內公開發行公司宣導公司治理之重要性，行政院於2003年1月7日，並提出「強化公司治理政策綱領暨行動方案」，作為推動公司治理之依據。當時即陸續推動與執行各項政策，包含制訂符合國情之上市（櫃）公司公司治理相關實務守則、推動電子投票等；惟依據亞洲公司治理協會(Asian Corporate Governance Association)2012年評鑑結果，我國由第4名下降至第6名，其報告顯示我國雖逐步推動公司治理改革，但速度相較其他亞洲國家落後。金融監督管理委員會爰於2013年公布行政院院會通過之「強化我國公司治理藍圖」，揭櫫我國之公司治理改革決心，引導未來五年之改革方向，其中「促進股東行動主義」更列入公司治理藍圖五大計畫項目中的第二大項，而擴大實施電子投票更是「促進股東行動主義」的首要推動步驟，可見電子投票對提升公司治理的重要性。 為了強化股東行動主義，提升公司治理，我國於2005年6月22日公布修正公司法，正式賦予公司召開股東會時，得採行電子方式供股東行使表決權之法律依據，期能使我國之公司治理與股東權益維護能與國際接軌；惟「股東會電子投票」制度，仍然未被各上市、櫃公司廣為採用，推動成效不彰。2010年10月的亞洲公司治理協會年會提出「CG Watch」報告，指出我國推動股權權益的狀況上並未有太大改善，比如公司對國外投資人「通訊投票」、「分割投票」權益的行使，相關法規及配套仍不夠完備，於是主管機關於2011年修正公司法177條之1，授權證劵主管機關得要求公司採用電子投票，同時立法開放「分割投票」，方便外資機構法人行使表決權，這幾年來的核心問題獲得具體的改善。 基此本研究將以股東會電子投票之法令、制度為經，佐以實務之見解為緯，參考外國經驗，藉由對美、日等國股東會制度及實務之探討，一窺國際之現況及未來發展之趨勢，藉由分析現行之制度並勾勒未來推動之建議供各界參考。本研究除分析我國股東會之基本概念、表決權行使方式、股東會召開的問題，另針對我國股東會電子投票制度與現況進行背景說明，並介紹我國電子投票實施之架構及現況，分析我國電子投票制度對強化股東行動主義、提升公司治理之影響，期望股東會電子投票被各上市、櫃公司廣為採用，最後並提出對相關主事者之建議及對後續研究者未來研究方向之建議，以期經由各界之集思廣益，共同為我國的資本市場國際化而努力。

近期電子投票系統被廣泛討論，許多國家也開始實行電子投票系統來取代傳統紙本投票。而一套完整的電子投票系統欲取代傳統紙本投票，此系統就必須滿足傳統紙本投票的需求，有完善的機制用以保護投票者在進行投票時的隱私性，保證投票者的身分及選票內容不被其他人得知，並維持整個投票過程的完整性、可驗證性及公平性等等的需求，系統的穩定性也是必須要考量的因素。 本篇論文主要針對投票者的隱私性及如何減輕投票者的負擔進行討論，我們提出了參考愛沙尼亞國家的電子投票系統的優點做結合，設計出一個改良的基於模糊簽章的電子投票系統。 / Electronic voting systems have been widely investigated in recent years since they are very convenient for voters. Many countries have begun to implement electronic voting system to replace the traditional voting system. In order to replace the traditional voting system, an e-voting system must satisfy all the security requirements of those in a traditional voting system. Those security requirements are, firstly, to have a sound mechanism to protect a voter’s privacy, and to ensure that the identity of a voter or the content of a ballot will not be leaked to others. Moreover, it must maintain the integrity, verifiability and fairness during the entire voting process. To keep the system stable during the voting process is also an important factor that must be considered. This thesis is a research on designing a secure electronic voting system. Based on some existing electronic voting systems, we design an improved system to enhance the privacy protection of voters on one hand and to reduce the loading of voters on the other hand. In detail, our scheme is modified from the existing e-voting system of Estonian state, and we proposed an improved e-voting system which uses the oblivious signatures as a building block.

在「公司法自一九二九年十二月二十六日制定公布以來，歷經十一次修正。資為因應資訊科技時代，順應企業國際化，協助企業提升全球競爭力，追求企業永續發展，並保護股東基本權利，推動建立完善之公司治理制度，營造良好公司法制環境」之立法總說明下，二００五年六月二十二日總統令公布增刪修正條文共十五條之公司法部份修正條文。 近年來電子科技發展迅速，法律制度亦需配合調整，以善用嶄新科技（如網路）所帶來的便利，同時解決此種便利所衍生的問題。在表決權相關法制方面，電子科技之影響無遠弗屆，從會議召開方式、資訊揭露方式、至投票表決方式，均產生相當衝擊，因此如何結合科技與法律，成為公司治理之重要議題。 公司法新增定之通訊投票制度，使股東能更便利行使其表決權，有助於公司治理，而「公司民主」亦因而得以落實，從而值得深入研究。本論文就公司法所增訂之通訊投票制度，加以剖析，輔以與美國及日本立法例之比較，檢視新法內容不合理及不足之處，並進而提出修改之建議，以供下次修法之參考，期使通訊投票制度在未來能更臻完善。 至於立法論上虛擬股東會是否適宜取代實體股東會，虛擬股東會所帶來的時間跟費用的節省也許看起來很吸引人，如果可以不用召開傳統實體股東會，勢必能免除繁瑣的作業程序，節省大量人力、金錢及時間，特別是當議程上的項目並不具爭議性時，但是考慮採取這些程序的公司必須把這些益處跟股東可能反對的潛在負面後果相衡量，也就是股東對於取消傳統股東會，使他們喪失可以接觸經營階層與其溝通的機會，可能會抱持負面觀感，故公司無法只著眼於時間及金錢的節省即貿然考慮採行。然這些危險並不是斷然拒絕虛擬會議可能帶來的益處的理由，尤其是可以使更多股東參與這點，所以仍應在維持現行實體股東會外，結合網路轉播實體集會，且讓遠距收看者也能藉由以電子郵件提出問題參與，加上（或是）同步電子投票，以利用科技便利股東參與股東會，提高股東對股東會之參與。一言以蔽之，如前所述，在股權分散的公開發行公司虛擬會議不應完全取代實體會議，除非能設計出一個電子方式能等同經營者對散戶股東面對面負責(face-to-face accountability)，而且也能提供現行實體會議所具有的商議機會（deliberation），才宜改以虛擬會議取代傳統實體集會之股東會。 / Stockholder meetings are the most important means for corporations to reach decisions, and are also how stockholders participate in the management of corporations, thus it is a significantly important legal issue to make sure stockholders can express their viewpoints of how to run the corporation through exercise of stockholder rights and stockholder meetings. Moreover, it is very common that one person is the stockholder of several or even hundreds of corporations nowadays. Though it is inevitable that several corporations conduct stockholder meetings at the same day for there are far more corporations than the dates capable to conduct stockholder meetings, it is quite obvious that corporation conduct meetings during the same period of time intentionally. It might be a result of preventing some nasty stockholders disturbing meetings through choosing the same day conducting stockholder meetings to decrease the risk, but it deprives other stockholders of attending stockholder meetings and consequently sacrificing their stockholder rights. There is proxy voting for stockholders who are unable to attend stockholder meetings, but it has pitfalls in practice and for stockholders it is not that safe comparing with voting directly. In order to increase the ways for stockholders to vote in stockholder meetings, there is a change in corporation that is to add article 177-1: “The voting power at a shareholders' meeting may be exercised in writing or by way of electronic transmission, provided, however, that the method for exercising the voting power shall be described in the shareholders' meeting notice to be given to the shareholders if the voting power will be exercised in writing or by way of electronic transmission. A shareholder who exercises his/her/its voting power at a shareholders meeting in writing or by way of electronic transmission as set forth in the preceding Paragraph shall be deemed to have attended the said shareholders' meeting in person, but shall be deemed to have waived his/her/its voting power in respective of any extemporary motion(s) and/or the amendment(s) to the contents of the original proposal(s) at the said shareholders' meeting.” Electronic technology has improved a great deal these years, therefore legal system has to change or amend to make use of the new technology e.g. internet as well as solve problems stemmed from new technology. Concerning the regulations of voting right there is a great impact of electronic technology from the way of conducting meetings, to the way of exposing information and voting, thus to combine technology and law is an important issue in corporate governance. Electronic voting has been put into practice in the United States for a long time, but it is not as successful in our country, and to date there has been only one company, Taiwan Integrated Shareholder Service Company, to adopt electronic voting, therefore it is worth studying why The United States can promote electronic voting successfully and then have a better understanding of what obstacles they have encountered initially to prevent our country from making the same mistake.

我國於94年6月22日公布修正後之公司法，正式賦予公司召開股東會時，得採行書面或電子方式供股東行使表決權之法律依據，期能使我國之公司治理與股東權益維護能與國際接軌；惟「股東會電子投票」制度，歷經元大京華證券股份有限公司、台灣總合股務處理股份有限公司及台灣集中保管結算所股份有限公司三個平台之建置，仍然未被各上市、櫃公司廣為採用，即使偶有採用者，其投票總權數占總股份之比例多數未及1%，顯示成效不彰。另2010年10月的亞洲公司治理協會(Asian Corporate Governance Association)年會，提出了最新一份的「CG Watch」報告，在這份報告中，ACGA指出我國推動股權權益的狀況上較前次調查類似，並未有太大改善，比如公司對國外投資人「通訊投票」、「分割投票」權益的行使，相關法規及配套仍不夠完備，而針對「通訊投票」得分，在歷次的評分中，我國都是敬陪末座，可以說，這幾年來此一核心問題並未被重視並獲得具體的改善。 基此本研究將以股東會通訊投票之法令、制度為經，佐以實務之見解為緯，參考外國經驗，藉由分析現行之問題並勾勒未來推動之建議供各界參考。本研究除分析我國股東會之基本概念、表決權行使方式、委託書之使用，並藉由對美、日兩國股東會制度及實務之探討，一窺國際之現況及未來發展之趨勢。另針對我國股東會通訊投票制度與現況進行背景說明，並介紹我國通訊投票下書面投票與電子投票之架構及現況，最後分析我國電子投票採用率偏低之原因。 此外，針對美、日、台三國股東會通訊投票制度分別由法規制度面、股東權益面、公司執行面及電子投票實務面進行比較，最後並提出對相關主事者之建議及對後續研究者未來研究方向之建議，以期經由各界之腦力激盪，共同為我國的資本市場國際化而努力。 / The amendment of Taiwan Company Act in June 22nd, 2005, upon its release, granted each shareholder the legitimate right to cast his/her vote by both written and electronic means in shareholders’ meetings. This amendment is menat to bring Taiwan’s corporate governance and shareholder rights in line with the international practice. However, with the limited use of no more than 1% voting rights of most listing and over-the-counter (OTC) companies on the three voting forums established by Yuanta Core Pacific Securities Co., Ltd., Taiwan Integrated Shareholder Service Company and Taiwan Depository & Clearing Corporation, the attempt has been proven unsuccessful. In addition, the latest “CG Watch” report, submitted during the 2010 Asian Governance Association annual conference held in October, has suggested that, similar to the previous reports, shareholder rights of Taiwan-based companies have not been improved outstandingly. For instance, the exercise of “postal voting” and “vote splitting” upon foreign investors of Taiwan-based companies has been restricted due to the flaws in the domestic voting system and regulations. Also, in the report, a constant low rating in “postal voting” for the Taiwan-based companies simply hints that the core issue has never been properly valued nor concretely improved. Based on the suggestions in the previous paragraph, this research paper provides an overview of the laws and the regulations of the postal voting system. The paper also includes opinions on practical needs and comparison from foreign experiences. By means of analyzing our current issues, the research draws an outline of the propositions for trends of the future development. Apart from analyzing the basic concepts of shareholders’ meetings held by some Taiwan-based companies, exercise of voting rights, and use of proxy forms, the research also peeks into the current situation around the globe and the future trends by consulting the system and the practical needs of shareholders’ meetings in the U.S. and Japan. As for the postal voting system and the current situation in Taiwan, the research provides a background illustration by introducing the structure and the current status of printed ballot voting and electronic voting under our postal voting framework. In conclusion, the paper points out the reasons for limited use of electronic voting in Taiwan. Finally, the research measures postal voting systems in the U.S., Japan and Taiwan from aspects of the laws and regulations, the shareholder rights, the corporate execution and the practical needs. In the end, in order for the effort of internationalization upon domestic capital market, the research eventually proposes the solutions for the related personnel in charge and the follow-up research direction for future researchers.

一般而言，股東會議程所有議案資訊必須事前揭露給全體股東，提供股東充分資訊，其方能在充分瞭解下作成投票決定。惟我國公司法長久以來承認股東有臨時動議與議案修正之權利，允許出席股東就第一七二條第五項規定除外事項之其他一切事項，在股東會現場提出臨時動議或原議案之修正，此舉不但將形成股東會議程資訊之漏洞，復以實務一般認為只要未違反第一七二條第五項之規定，股東可以在現場以臨時動議提議召開股東臨時會針對法定除外事項進行決議，或在同一議題下，可以提出任何修正案，而架空第一七二條之一股東提案權制度所寓有之資訊揭露功能。在無法獲得充分資訊之下，股東應當如何行使表決權，尤其未出席股東以書面或電子方式事前行使表決權時，更是需要充分資訊，否則一旦面對臨時動議或議案修正時，其表決權將依法視為棄權，更進一步衍生出表決權操縱和應否親自出席之問題，橫生枝節，臨時動議與議案修正之突襲性問題，亟待解決。 因此，參考美國、日本、德國、英國、香港、韓國和中國大陸公司法制，公司法應明文要求將股東會議程之主要內容或要領記載於召集通知中，股東會不得就召集通知所未記載之議案進行決議，股東如欲發表任何意見，應循事前提案權提出，而非在現場提出臨時動議或議案修正突襲其他股東。因此，本文建議禁止在現場提出任何臨時動議或議案修正。 / Generally speaking, the agenda of general meeting, including all motions, should be disclosed to all shareholders of the company in advance of a general meeting to provide them with sufficient information to vote (informed voting). However, according to Taiwan Company Act, shareholders have right to move extemporary motions or amendments all but any items as set forth in §172(5) hereof at the meeting. This will not only come to be a loophole resulting from blank statements in a notice of a general meeting, but also sideline the information disclosure function by implication of shareholder proposal in §172-1, because the court hold that the shareholder are entitled to move an extemporary motion to call a meeting to make a resolution on exclusion items in §172(5), or any amendment under the same subject. Thus shareholders are unable to vote without sufficient information, especially who cast their vote through writing or electronic transmission without participating in person in advance of the meeting. In case of extemporary motions or amendments, shareholders who cast vote through writing or electronic transmission shall be deemed to withhold their voting power. This result would bring some issues of manipulation of voting power and whether shareholders who have cast their vote through writing or electronic transmission should participate in person afterwards or not. However, extemporary motions and amendments with surprising nature shall be or shall not be, that is the question. In order to deal with this problem, the main component or general nature of items in the agenda of a general meeting shall be stated in the notice, and only the items stated in the notice could be validly passed at the general meeting by referring to the Company Act of the U.S., Japan, Germany, U.K., Hong Kong, South Korea, and Mainland China. If shareholders are willing to express their opinions, they should propose to ask to put in the agenda in advance of the meeting, instead of moving extemporary motions and amendments to surprise the others. This study suggests that no extemporary motion or amendment shall be allowed to move at the general meeting.

區塊鏈有著不可否認性、可追溯性以及共識性等特點，所有的交易內容都會完整的被記錄在區塊鏈上，基於上述幾項特性，我們利用區塊鏈來記錄公開資訊，將私密資料經由分散式秘密共享後再加密存放於智能合約中。其中，智能合約是一個能將交易狀態和交易狀態內嵌於區塊鏈上的應用，透過智能合約作為媒介，我們能夠將加密後的私密資料完整的存放於區塊鏈上，最後經由區塊鏈網路上的節點驗證後，達到資料正確性驗證的目的。 本研究分析現有的電子投票以及電子投標等應用的系統架構後，發現兩者皆存在著可信賴的第三方進行開票及開標的角色，且驗證流程繁瑣，無法提供一個便利性的投票與投標流程。此外，上述兩種應用皆須滿足機密性、不可否認性、匿名性以及可驗證性等安全性質，若能結合區塊鏈與智能合約於上述應用中，將可提升資料的可驗證性以及降低成本的負擔，對參與應用的人而言也能達到公開透明的需求。 因此，本文提出一個分散式架構下的電子投票與投標機制，結合區塊鏈以及智能合約的優點與技術，讓所有參與投票的選民、投標的廠商共同參與驗證與計算，並加強參與者的匿名性、資料傳輸的隱私性、開票與開標階段資料的可信賴性以及可驗證性。 / With the rise of blockchain technology, the core concept of decentralization has gradually drawn attention. In this context, the main objective of this study is to realize more convenient and secure electronic applications with the use of blockchain technology. This research is aimed to design a distributed e-voting and e-bidding system. The core idea is to combine the blockchain technology with secret sharing scheme and homomorphic encryption in order to realize the distributed e-voting and e-bidding application without a trusted third party. The system allows voters to participate in opening phase. It provides a public and transparent process while protecting the anonymity of voter’s and vendor’s identity, the privacy of data transmission and verifiability of data during the opening phase.

我國於2005年時，為促進我國公司治理之發展，提升股東行使表決權之便利性以鼓勵股東參與股東會之議決，落實股東民主與股東行動主義之精神，並因應我國上市櫃公司股東會開會日期過度集中之問題，引進於國外行之有年之通訊投票制度，使股東除得選擇親自出席或委託他人出席股東會外，尚得選擇使用書面或電子投票方式行使表決權，立意甚為良善。然此制引進至今，實務上自願採用之公司甚少，使此制度之優點無法充分發揮。 　　為檢討我國通訊投票制度使用率偏低之問題，本文先自公司治理原則之觀點，探討股東參與對公司治理原則而言之意義，並建立通訊投票制度與公司治理原則之關聯，突顯通訊投票制度之價值。其次，介紹美國、英國、日本、歐盟等之通訊投票法制與實務運作情形，以了解國際脈動、發掘我國制度之現存問題，並藉由國外實施通訊投票制度之經驗，反思我國通訊投票制度未來之發展方向。 　　另就我國通訊投票之法制與實務部分，與股東資訊權有關之規範，如我國召集通知之發送或公告時點、召集通知之記載與臨時動議、召集通知之電子化、議事手冊及會議資料之製作與周知方式等，應朝更透明化之方向發展，並應使股東得以更直接之方式獲取相關資訊。另一方面，亦應使符合一定條件之公司負有提供英文版召集通知與議事手冊之義務，以利機構投資人妥適行使表決權。 　　其次，就通訊投票之規範上，公司法第177條之1與第177條之2之規範內容，有諸多過度遷就股務作業之規定，有所不妥，書面或電子投票之方式與作業程序規範密度亦有不足。另在電子投票制度上，未能顧及電子投票方式之即時性與互動性，僅採「事前的」電子投票制度，亦過於保守。此外，與通訊投票相關之制度，如分割行使表決權制度、董監候選人提名制、股東提案權制度等，亦宜一併檢視。 　　本文認為，為符合現今國際潮流、提升我國公司治理、促進電子投票制度之使用，前揭我國規範之未盡之處，未來皆有進行全盤檢討並加以修正之必要。