Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw
description
Transcript of Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw
![Page 1: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/1.jpg)
Quantifying
Voter-controlled Privacy
Hugo Jonker
in collaboration with Jun Pang and Sjouke Mauw
![Page 2: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/2.jpg)
Why care about privacy?
![Page 3: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/3.jpg)
A random set of voters
![Page 4: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/4.jpg)
Traditional view on privacy
Works for: vote-privacy, receipt-freeness, coercion-resistance
? ? ?
![Page 5: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/5.jpg)
Privacy ≠ swapping
![Page 6: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/6.jpg)
What could that have been?
- ρ( ) =
- ρ(
- ρ({
) = (ρ( ), ρ( )) ,
}K) = {ρ( )}K if k is known
- ρ({ }K) = if k is unknown01101010101011010011101010110011010110101100101010110111011010101
![Page 7: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/7.jpg)
Choice groups
) =
cg(
}{
![Page 8: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/8.jpg)
Conspiring voters
+ =
+ =
...
![Page 9: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/9.jpg)
How to conspire
{ }kuntappable channels
sees all!
=01101010101011010011101010110011010110101100101010110111011010101
+ k = { }k
![Page 10: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/10.jpg)
Untappable channels? ? ?
![Page 11: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/11.jpg)
Untappable channels
01101010101011010011101010110011010110101100101010110111011010101
01101010101011010011101010110011010110101100101010110111011010101
![Page 12: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/12.jpg)
Effects of coercion
) = cg(
}{–
) =
cg( }{– =?
![Page 13: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/13.jpg)
Plans
• slight extensions to formalism• account for distribution in result• conspiring authorities, defense coalitions• extend to auctions, e-healthcare, …
• Sec ote 2010
![Page 14: Quantifying Voter-controlled Privacy Hugo Jonker in collaboration with Jun Pang and Sjouke Mauw](https://reader035.fdocument.pub/reader035/viewer/2022081520/56814bf0550346895db8d8a5/html5/thumbnails/14.jpg)
Thanks for your attention
/