Why Public Registration Boards are Required in E-Voting Systems Based on Threshold Blind Signature Protocols
Reto E. Koenig, Eric Dubuis, Rolf Haenni · ARBOR - Bern University of Applied Sciences Repository · 2010
In this paper we demonstrate that e-voting protocols based on threshold blind signatures from multiple authorities allow a coalition of eligible voters to cast more than votes. This property presents a serious violation of democracy of the voting process. We analyze the applicability of this violation and provide a generic solution using a public registration board and modified threshold signature schemes.