ElectionGuard is an open source software development kit (SDK) that makes voting more secure, transparent and accessible. Announced on at the Build developer conference, ElectionGuard enables end-to-end verification of elections as well as support the publication of results from ballot comparison audits. The ElectionGuard SDK leverages homomorphic encryption to ensure that votes recorded by electronic systems of any type remain encrypted, secure, and secret. Results can be published online or made available to third-party organizations for secure validation, and allow individual voters to confirm their votes were correctly counted.

This library and all linked ElectionGuard projects, are licensed under the MIT license. There is no fee for using ElectionGuard.

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ElectionGuard is always improving. To keep up with the latest, check our GitHub Pages documentation. For developers looking to get started, we recommend the following repositories.

A core component of electionguard implemented in python which includes ballot encryption, decryption, key generation, and tallying.

📁 Source | 📦 Package | 📝 Documentation

A core component of electionguard implemented in C++ which includes ballot encryption.

📁 Source - ✨ Coming Soon

A thin stateless API that wraps the python package to perform ballot encryption, casting, spoiling, and tallying.

📁 Source | 🐳 Docker | 📄 Documentation

We encourage the developer and security community to conduct research, report issues, and suggest improvements on this code base. However, unlike performance or feature bugs, please do not report security vulnerabilities in public Github comments. Each repository has a SECURITY file with instructions on responsibly reporting security vulnerabilities under Microsoft's CVD process.

Help defend democracy and contribute to the project.

ElectionGuard would love for you to ask questions out in the open using Github Issues. If you really want to email the ElectionGuard team, reach out at [email protected].

A huge thank you to those who helped to contribute to this project so far, including:

• Josh Benaloh (whose PhD thesis was the genesis of much of this work)
• InfernoRed Technology
• VotingWorks
• Center for Civic Design
• Oxide Design
• Many teams within Microsoft