Ostracism
510 BC
One of the
earliest voting in the world
Voting Process
Registration Vote Count Announce
You may lost your rights!
Place your screenshot here
Sorry!You already
voted!
◇ Pre-fulfilled ballot papers
◇ Broken ballot papers
◇ Poor-design
Integrity
Characteristics
Confidentiality Transparent
BlockchainWe need you!(But who are you?)
Cryptography
◇ Use private/public key pair◇ Digital signature◇ ! = "
Append-Only
◇ (Almost) impossible to change the content
Permanent
◇ … Unless you destroy every single node or the internet
Major componentsIdentify Chain◇ Maintain by us◇ Public chain
Voting Chain◇ Maintain by
organizer and scrutineers
◇ Private chain◇ Could be local
network
Mobile Application◇ Develop by us◇ Key generation and
recover◇ To verify and vote◇ Able to analyze the
result
Place your screenshot hereKey Generation
Unchangeable◇ Once the voter’s list is
submit, no one can change
RegistrationTransparent◇ Verify voter’s identity◇ Number of voter
Place your screenshot here
Passcode+
Biometric
Verify
Open Ballot◇ Private key as a digital
signature
Submit to Voting Chain
Secret Ballot◇ Ring signature◇ Unlinkable
“The vote is the most powerful nonviolent tool we have.
-John Lewis