In this system: I have no idea.

In any system, I suspect it is possible. There are strategies that allow doing private set intersections (or similar): https://en.wikipedia.org/wiki/Private_set_intersection (i.e. a set with one member is "you", and you can check to see if you're in that 764, without knowing who the others are)

I'm not sure what strategies would also allow you to not reveal to the vote collectors where your vote went, but there might be something.

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cryptonector 3 hours ago | parent [-]

From that wiki:

> Private set intersection is a secure multiparty computation cryptographic technique[1] that allows two parties holding sets to compare encrypted versions of these sets in order to compute the intersection. In this scenario, neither party reveals anything to the counterparty except for the elements in the intersection.

Revealing even elements in the intersection, if that means revealing individual votes, breaks ballot secrecy.

	▲	phtrivier 3 hours ago \| parent [-]
		Exactly, it means someone you could prove to someone else how you voted, which is the sine qua non condition for creating a vote economy. That's actually the main reason behind trying to keep the vote secret, much more than threats of intimidation for opposing parties voters, etc...