A. Our contribution
In this paper, our main goal is to develop an efficient
solution for the E2E decentralized e-voting scheme without
the authenticated channel. To obtain this goal, we first redesign
elliptic curve cryptosystem based the privacy-preserving multiparty
sum protocol (PPSP for short) that is a variant of
Yang et al.’s solution [16]. Our PPSP is more efficient than
both the original protocol [16] and the 2-round anonymous
veto protocol [13] that is employed in [3]–[5]. Secondly,
we combine PPSP with a modified authentication method
to obtain the new decentralized e-voting scheme that has a
number of the following advantages:
No trusted party engages in the e-voting system. The
(untrusted) voting server only computes the public parameters
for the voters.
Each voter clicks his choice (e.g., yes/no buttons) on the
voting website to cast his encrypted ballot to the voting
server via the public network (e.g., Internet). No one
knows his selection beyond him (even if there are up
to some voter colluding with the voting server).
Our solution is efficient and convenient. Excepting the
pre-processing parameters stage, each voter only interacts
once with the voting server.
B. Organization
The main content of this paper is organized as follows.
Section II reviews the necessary preliminaries that used in
this work. Our main contribution is presented in Section III.
Finally, Section IV concludes the obtained results of this paper.