@inproceedings {267630, author = {C. Andrew Neff}, title = {Efficient {Receipt-Free} Ballot Casting Resistant to Covert Channels }, booktitle = {2009 Electronic Voting Technology Workshop/ Workshop on Trustworthy Elections (EVT/WOTE 09)}, year = {2009}, address = {Montreal, Quebec}, url = {https://www.usenix.org/conference/evtwote-09/efficient-receipt-free-ballot-casting-resistant-covert-channels}, publisher = {USENIX Association}, month = aug } @inproceedings {268918, author = {Ben Adida and C. Andrew Neff}, title = {Ballot Casting Assurance}, booktitle = {2006 USENIX/ACCURATE Electronic Voting Technology Workshop (EVT 06)}, year = {2006}, address = {Vancouver, B.C.}, url = {https://www.usenix.org/conference/evt-06/ballot-casting-assurance}, publisher = {USENIX Association}, month = aug }