added range Chaum-Pedersen proofs and eliminated placeholders #761
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…alization; fixed bug with determining limit of range proofs
…ictionaries to (flattened) list; all tests now pass, and disjunctive Chaum-Pedersen proofs are now unused
…erencing the specification for clarity of use
…oved placeholders
…erencing the specification for clarity of use
…oved placeholders
SteveMaier-IRT
merged commit e33e830
into
Election-Tech-Initiative:feature/cumulative-voting
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Issue
Fixes #760
Description
This pull requests creates range Chaum-Pedersen proofs and replaces disjunctive and constant Chaum-Pedersen proofs in use for selection limits and contest limits, respectively. Then, it removes placeholder selections from ElectionGuard. Unit testing is included.
Finally, cumulative voting is added with testing. Support for cumulative voting is a matter of defining contests by
votes_allowedandvotes_allowed_per_selection, noticing thatnumber_electedis redundant. Thevotes_alloweddetermines the maximum count of votes each ballot may allot across the entire contest;votes_allowed_per_selectiondetermines the maximum count of votes each ballot may allot to any particular selection in the contest. Some common contest types and their corresponding values include:votes_allowed = n,votes_allowed_per_selection = 1,votes_allowed = n,votes_allowed_per_selection = n,votes_allowed = m,votes_allowed_per_selection = 1.Testing
This builds as expected. Unit tests were adapted for the range Chaum-Pedersen proofs and elimination of placeholders as well as added for sample cumulative voting contests.