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github.com/cryptoballot/cryptoballot @v0.4.0
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20 files
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README
CryptoBallot
CryptoBallot is a cryptographically secure decentralized end-to-end verifiable voting system meant for real-world elections. It is a "backend" service providing vote storage, cryptographic operations, and an API. It does not provide a user interface - although it is built to make creating a UI that interfaces with it easy.
It uses Shamir Secret Sharing for election decryption keys, blind-signing for voter anonymity, and an optional blockchain backend for distributed transaction storage and verification. It supports all tally methods including write-in candidates.
Goals
- Verifiable - the entire voting process should be end-to-end verifiable.
- Ergonomic - Easy to use.
- Fast - 1,000 votes per second
- Scalable - Millions of voters.
- Secure - Rock solid security guarantees, byzantine fault tolerance.
Current State
Under active development. Not ready for production use!
Road Map
| Status¹ | Feature | Notes |
|---|---|---|
| ✓ | Migrate from Go to Rust | 🦀 |
| ✓ | Blind-Signing (RSA) | Uses RSA-FDH |
| Blind-Signing (ed25519 / schnorr) | Will replace current RSA bling-signing | |
| ✓ | Shamir Secret Sharing | Uses Sharks |
| ⚠ | Blockchain backend | Uses Hyperledger Sawtooth |
| ⚠ | Support all tally methods | Uses Tallystick |
| REST frontend | ||
| Distributed key generation | Replace Shamir, uses ElGamal, fully verifiable and distributed | |
| Onion mixnet (likely Sphinx) | Strengthened voter anonymity - Depends on REST frontend | |
| Re-encryption mixnet | Provides coercion resistance | |
| ⚠ | End-User Device Verification | Uses Benaoh Challenge |
- ✓ means done, ⚠ means in-progress, blank means not started but support is planned.
Components
Core library
- Add
cryptoballot = "0.3.1"to your rust project'sCargo.tomlfile.
Command-line tool
Sawtooth Transaction Processor
Extension points exported contracts — how you extend this code
Store (Interface)
A transaction store [2 implementers]
cryptoballot/src/store.rs
Signable (Interface)
(no doc) [4 implementers]
cryptoballot/src/transaction.rs
Core symbols most depended-on inside this repo
id
called by 11
cryptoballot/src/transaction.rs
get
called by 11
cryptoballot_sawtooth_tp/src/handler.rs
as_bytes
called by 10
cryptoballot/src/transaction.rs
as_ref
called by 9
cryptoballot/src/authn.rs
generate_keypair
called by 8
cryptoballot/src/util.rs
validate
called by 8
cryptoballot/src/transaction.rs
generate_keypair
called by 7
cryptoballot/src/ecies_ed25519.rs
verify_signature
called by 7
cryptoballot/src/transaction.rs
Shape
Languages
Rust100%
Modules by API surface
cryptoballot/src/transaction.rs28 symbols
cryptoballot/src/ecies_ed25519.rs21 symbols
cryptoballot_sawtooth_tp/src/handler.rs13 symbols
cryptoballot/src/authn.rs13 symbols
cryptoballot/src/election.rs11 symbols
cryptoballot_cli/src/main.rs9 symbols
cryptoballot/src/vote.rs8 symbols
cryptoballot/src/secret_share.rs8 symbols
cryptoballot/src/decryption.rs8 symbols
cryptoballot_cli/src/transaction.rs7 symbols
cryptoballot/src/store.rs7 symbols
cryptoballot_cli/src/rest.rs5 symbols
For agents
$ claude mcp add cryptoballot \
-- python -m otcore.mcp_server <graph>