Auflistung nach Autor:in "Krimmer, Robert"
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- KonferenzbeitragAnalysis of recommendation Rec(2004)11 based on the experiences of specific attacks against the first legally binding implementation of e-voting in Austria(4th International Conference on Electronic Voting 2010, 2010) Ehringfeld, Andreas; Naber, Larissa; Grechenig, Thomas; Krimmer, Robert; Traxl, Markus; Fischer, GeraldThis paper discusses the recommendation Rec(2004)11 of the Committee of Ministers to member states on legal, operational and technical standards for e-voting in light of the various attacks against the 2009 Austrian federation of students election. This election was the first instance of e-voting being implemented in a legally binding election in Austria. The question is if the recommendation published in 2004 is sufficient to handle real-world attacks against elections using e-voting. Based on the experience gained, several amendments to the recommendation are described.
- KonferenzbeitragAssessing Internet Voting as an Early Voting Reform in the United States(Electronic Voting 2008 (EVOTE08). 3rd International Conference on Electronic Voting 2008, Co-organized by Council of Europe, Gesellschaft für Informatik and EVoting.CC, 2008) Kolar Prevost, AliciaRecent research on convenience voting reforms in the United States has found that programs designed to make voting easier have not succeeded in boosting turnout, and have even had the unintended consequence of exacerbating the demographic biases that already exist in the electorate by encouraging votes among those who were most likely to vote anyway but who were inconvenienced by going to the polls on election day. Using public voting records and a unique dataset of Internet voters in the 2004 Michigan Democratic Presidential primary, this paper offers new evidence that Internet voting benefits two groups of people: young voters and people who vote infrequently. Like previous research on voting reforms, I also find evidence that Internet voting does not draw new voters into the electorate. I discuss the implications of these findings for the future of early voting reforms in general and Internet voting in particular.
- KonferenzbeitragAssessing the Impact of E-Voting Technologies on Electoral Outcomes: an Analysis of Buenos Aires’ 2005 Congressional Election(Electronic Voting 2008 (EVOTE08). 3rd International Conference on Electronic Voting 2008, Co-organized by Council of Europe, Gesellschaft für Informatik and EVoting.CC, 2008) Katz, Gabriel; Alvarez, R. Michael; Calvo, Ernesto; Escolar, Marcelo; Pomares, JuliaUsing data from an e-voting experiment conducted in the 2005 Congressional Election in Argentina, we estimate the effect of different e-voting technologies on the likelihood that citizens cast their vote for different parties for the National Congress and the Legislature of Buenos Aires. Our results indicate that voters are extremely receptive to the information cues provided by the different voting technologies and associated ballot designs, and that particular voting devices have a significant impact on voter choice, systematically favouring some parties to the detriment of others. We conclude that the choice of alternative electronic voting devices might have considerable effect on electoral outcomes in multi-party electoral systems.
- KonferenzbeitragCAPTCHA-based Code Voting(Electronic Voting 2008 (EVOTE08). 3rd International Conference on Electronic Voting 2008, Co-organized by Council of Europe, Gesellschaft für Informatik and EVoting.CC, 2008) Oppliger, Rolf; Schwenk, Jörg; Löhr, ChristophCode voting provides an appropriate technology to address the secure platform problem of remote Internet voting, but it is not particularly user-friendly. In this paper, we propose the use of CAPTCHA- an acronym standing for Completely Automated Public Turing tests to tell Computers and Humans Apart - to improve the user-friendliness of code voting, discuss the security of CAPTCHA- based code voting, and elaborate on a possible implementation.
- KonferenzbeitragThe Certification of E-Voting Mechanisms. Fighting against Opacity(Electronic Voting 2008 (EVOTE08). 3rd International Conference on Electronic Voting 2008, Co-organized by Council of Europe, Gesellschaft für Informatik and EVoting.CC, 2008) Barrat i Esteve, JordiMany countries are using certification procedures to guarantee the full compliance of e-voting mechanisms with democratic standards, but the data generated by these analysis is normally handled almost secretly. Given that transparency is a key principle to guarantee citizen's confidence in the electoral process, this opacity would only be acceptable after a correct balance of the concurrent interests. The paper provides specific data on the certification mechanisms of some countries and assesses the feasibility of a disclosure of the certification reports.
- KonferenzbeitragCode Voting With Linkable Group Signatures(Electronic Voting 2008 (EVOTE08). 3rd International Conference on Electronic Voting 2008, Co-organized by Council of Europe, Gesellschaft für Informatik and EVoting.CC, 2008) Helbach, Jörg; Schwenk, Jörg; Schäge, SvenCode Voting is an appropriate technology to deal with the “Secure Platform Problem” [Riv02]. However, code voting as proposed by Chaum [Cha01] is vulnerable to vote selling and other flaccidities. In this paper we describe the vulnerabilities of code voting and propose to extend code voting to prevent vote selling. For this purpose we combine code voting with linkable group signatures and vote updating. We analyze the security properties of this new approach.
- KonferenzbeitragCoercion-resistant electronic elections with observer(Electronic Voting 2006 – 2nd International Workshop, Co-organized by Council of Europe, ESF TED, IFIP WG 8.6 and E-Voting.CC, 2006) Schweisgut, JörnWe introduce an electronic election scheme, that is coercion-resistant, a notion introduced by Juels et al. in [JCJ05]. In our scheme we encrypt the credentials that serve as an authorisation to vote during registration. By using a MIX-cascade we can omit one time-consuming plaintext equivalence test in the tallying. In addition, the observer facilitates registration and voting for the benefit of the voter. Pseudonymisation of the ciphertexts during the voting period implies a permanent secrecy of the submitted votes.
- KonferenzbeitragCoercion-resistant hybrid voting systems(4th International Conference on Electronic Voting 2010, 2010) Spycher, Oliver; Haenni, Rolf; Dubuis, EricThis paper proposes hybrid voting systems as a solution for the vote buying and voter coercion problem of electronic voting systems. The key idea is to allow voters to revoke and overrule their electronic votes at the polling station. We analyze the potential and pitfalls of such revocation procedures and give concrete recommendations on how to build a hybrid system offering coercion-resistance based on this feature. Our solution may be of interest to governments, which aim at integrating paper-based and electronic voting systems rather than replacing the former by the latter.
- KonferenzbeitragCompliance of POLYAS with the common criteria protection profile - a 2010 Outlook on certified remote electronic voting(4th International Conference on Electronic Voting 2010, 2010) Menke, Niels; Reinhard, KaiIn 2008, the German Federal Office for Information Security issued the common criteria protection profile for Online Voting Products (PP-0037). Accordingly, we evaluated the Polyas electronic voting system, which is used for legally binding elections in several international organizations (German Gesellschaft for Informatik, GI, among others), for compliance with the common criteria protection profile and worked toward fulfilling the given requirements. In this article we present the findings of the process of creating a compliant security target, necessary restrictions and assumptions to the system design as well as the workings of the committee, and architectural and procedural changes made necessary.