Microsoft today debuted ElectionGuard, a free, open source software development kit (SDK) aiming to protect political voting processes as the spotlight on election security grows harsher.
CEO Satya Nadella announced ElectionGuard during his keynote at the Build developer conference, this week in Seattle. The SDK, built in partnership with security company Galois, is designed to make the election process more secure by providing verification throughout elections and letting third parties securely validate results, among other capabilities.
ElectionGuard isn't a voting machine, and it's not intended to replace paper ballots or support Internet voting. It's built to secure current systems that rely on modern voting technology and serve as a platform for new systems to protect against tampering. Microsoft's goal here is to give officials a means to handle and organize votes while letting individuals verify their votes. People can verify their votes were correctly recorded and that recorded votes were properly counted.
Verification happens in two ways: Each voter gets a tracker with a code that can be used to follow an encrypted version of his or her vote throughout the election. Voters also can see their selections on a Web portal provided by authorities; however, once a vote is cast, neither the tracker nor portal data can be used to reveal the vote. After the election, these codes can be used to confirm votes were not changed and were included in the total count.
The tool includes an open specification, or "road map," as Microsoft puts it, which lets voters and candidates run verifiers to confirm the recorded votes have been accurately counted. It relies on homomorphic encryption, which lets mathematical procedures be done to encrypted data. This lets individually encrypted votes be combined to form an encrypted vote count, which can be decrypted to view a full tally that protects voter privacy. Someone who runs an open election verifier can confirm encrypted votes were aggregated and the encrypted tabulation has been decrypted to get the final count.
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"This process allows anyone to verify the correct counting of votes by inspecting the public election record, while keeping voting records secure," writes Tom Burt, corporate vice president of customer security and trust, in a blog post on the news. "The use of homomorphic encryption to enable verification is separate from and in addition to the process of paper ballots counted as an official election tally."
If a vote needs to be audited, ElectionGuard lets officials compare random ballot records with corresponding paper ballots to confirm a match. By comparing paper with digital records, fewer ballots would be necessary to ascertain confidence in an election, Burt explains.
ElectionGuard will be available this summer to election officials and technology suppliers so they can incorporate it into voting systems. Microsoft also has teamed up with election tech suppliers to explore integration of ElectionGuard into voting systems. It reports it has existing partnerships with suppliers responsible for more than half of the voting machines in the US.
This tool is part of Microsoft's Defending Democracy Program, through which it works with governments, nongovernment organizations, academics, and businesses to protect election campaigns, develop technology to protect processes, and defend against disinformation.
Microsoft isn't the only tech company strengthening its focus on election security. Late last summer, jurisdictions across the US registered for free website and user-account protection services offered by vendors including Google and Microsoft. Back in 2017, Google and sister company Jigsaw teamed up to offer digital protection – password alerts andmultifactor authentication – to election candidates and their campaigns.
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