Some remarks on a receipt - free and universallyveri able Mix - type voting
نویسندگان
چکیده
At Eurocrypt'95 Sako and Kilian presented the rst Mix-type voting scheme which is receipt-free and universally veriiable. In this contribution we analyze this scheme and show that the coercer must not collude with any center. Otherwise its robustness is lost. As a result, the assumed coercer model is clariied. More seriously, it is further pointed out that the privacy of votes can't be guaranteed, if only one Mix-center is honest. Hence, under the commonly used assumption that only one Mix-center must be honest, the voting scheme is insecure unless modiied.
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