Title: Toward Privacy-Preserving Electronic Voting With Ballot-Spoiling Using Blockchain
Program: Master of Science in Computer Science
Advisor: Dr. Gaby Dagher, Computer Science
Committee Members: Dr. Amit Jain, Computer Science; and Dr. Nasir Eisty, Civil Engineering
Several voting techniques have been presented in recent years to address the security and privacy concerns associated with electronic voting. Some of these systems have
used blockchain technology to reduce the requirement for centralized authority trust while maintaining voter privacy and ballot confidentiality. Existing methods, however, neglect to comply with government standards and therefore are unsuitable for real-world election settings. They often overlook essential attributes such as ballot spoiling and voter-to-ballot unlinkability, dismissing them as conflicting features. In this thesis, we introduce ORBIT, a cryptographic voting scheme that complies with regulations outlined in the Idaho state law while achieving receipt-freeness (security) and ballot-hiding (privacy).