Aggelos Kiayias Laurent Michel Alexander Russell Narasimha Shashidhar Andrew See Alexander A. Shvartsman Seda Davtyan Tampering with Special Purpose Trusted Computing Devices: A Case Study in Optical Scan E-Voting. 30-39 2007 ACSAC http://doi.ieeecomputersociety.org/10.1109/ACSAC.2007.45 conf/acsac/2007 db/conf/acsac/acsac2007.html#KiayiasMRSSSD07