Page 332 - Towards Trustworthy Elections New Directions in Electronic Voting by Ed Gerck (auth.), David Chaum, Markus Jakobsson, Ronald L. Rivest, Peter Y. A. Ryan, Josh Benaloh, Miroslaw Kutylowski, Ben Adida ( (z-lib.org (1)

R. Joaquim, C. Ribeiro, and P. Ferreira
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Matrix CodeCard
Candidate number d 5 d 4 d 3 d 2 d 1
0 A S Q B U
E 1 W E P S I
n M 2 E W L V R
c a 3 R Q I G S
o t 4 Y U M N J
d r 5 V N H Y H
i i 6 B J T U T
n x 7 M M F K C
g 8 O X E W E
9 U T Z A P
Vote code v 5 v 4 v 3 v 2 v 1
Confirmed vote delivery code: 6HKG2

Fig. 4. Matrix CodeCard for 5-digit candidate numbers

Election for the most important Election for the most important
figure in security. figure in security.

A - Alice 54598 - Alice
B- Bob 39027 - Bob
C- Eavesdropper 78351 - Eavesdropper
D - Attacker 46209 - Attacker

Enteryourvotecode: Enter your vote code:

Fig. 5. A regular ballot is presented on the left and the Matrix Code-Voting is shown
on the right

Candidate number 4 6 2 0 9
0 A S Q B U
E 1 W E P S I
n M 2 E W L V R
c a 3 R Q I G S
o t 4 Y U M N J
d r 5 V N H Y H
i i 6 B J T U T
n x 7 M M F K C
g 8 O X E W E
9 U T Z A P
Vote code Y J L B P

Fig. 6. Example of the encryption of a candidate ID using the Matrix CodeCard