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CHVote

CHVote aims to be an opensource, publicly owned evoting system. It is the result of the collaboration between the Geneva State Chancellery and the Geneva IT Department.

CHVote is currently used by 4 cantons in Switzerland: Basel-City, Bern, Geneva and Luzern, either for votations or elections.

Released components

The following components are released as opensource software:

  • The offline administration application
  • Various utility libraries needed by this application

The goals of the offline administration application are to:

  • generate the keys responsible for encrypting and decrypting the stored ballots, using passphrases from the electoral board;
  • test the generated keys and the passphrases;
  • decrypt the ballots.

The security objective of having an offline application is to ensure that the private key able to decrypt the ballots is never known to any system other than the offline application and its offline laptop.

The offline administration application is a key component of the evoting system in that it is the only one responsible for creating and using the private decryption key.

System overview

Please read the system overview documentation to learn how the published components contribute to the evoting system. You'll get an overview on the following themes:

  • the election process;
  • the system architecture including focuses on the ballot box cryptography and the use of the offline administration application;
  • the security concept.

Compiling and running

Preconditions

The following software must be installed to compile and run the application:

We do not provide support for the use of OpenJDK/OpenJFX.

Compiling

Compile and install the 3 modules in this sequence:

cd $PROJECT_ROOT/base-pom
mvn clean install

cd $PROJECT_ROOT/commons-base
mvn clean install

cd $PROJECT_ROOT/admin-offline
mvn clean install

Some JDK distributions do not come with the Monocle classes used by the headless GUI tests. If you're running into those cases (java.lang.AbstractMethodError: com.sun.glass.ui.monocle.NativePlatform.createInputDeviceRegistry appearing in the test logs), use the following command to skip the GUI tests:

cd $PROJECT_ROOT/admin-offline
mvn -P skipJavaFXTests clean install

Running

Run the application with maven:

cd $PROJECT_ROOT/admin-offline
mvn exec:java -Dexec.mainClass="ch.ge.ve.offlineadmin.OfflineAdminApp"

Contributing

CHVote is opensourced with the main purpose of transparency to build confidence in the system.

Contributions are also welcomed, either using pull requests or by submitting issues in github. The CHVote community manager will take care of those inputs, lead exchanges around them, and actions could take place according to their relevance, their criticality, and the CHVote development roadmap.

In case of vulnerability discovery, please use the following email address for coordinated disclosure: [email protected].

Licence

CHVote components are released under AGPL 3.0.

Future

The second generation of CHVote is under active development. It aims to provide end-to-end encryption with individual and universal verifiabilities. Its source code will be published under AGPL 3.0 as well.