Towards a Privacy-Preserving Voting System Through Blockchain Technologies

The voting system is the process to take the opinion of people to run the constitution properly. Fairness, independence, and unbiasedness should be present in the voting system. Hence, it must be a transparent and secured process so that everybody can express their own opinion freely. Worldwide vote manipulation is an intriguing problem in existing voting systems. Since people in different countries are using digital technology in the voting process (e.g., Optical Scan Voting system, Internet Voting system, Electronic Voting system) instead of traditional way (e.g., Ballot Box). Only digitization could not solve the issues completely. Because still there are numerous ways to manipulate or tamper digital technology and hamper the voting process. To build a secure electronic voting environment, we introduce an application of blockchain technology as a service for the distributed electronic voting system. With the use of blockchain, we achieve data integrity which is a necessary attribute of a voting environment. The anonymity of the voters, privacy, and security of the voting environment is the main goal of this work. Through the design of our system and with the help of blockchain we have solved all the security issues in the voting environment.