New Part IV½ shows the return-code cast-as-intended mechanism (E2 + plaintext-
equality proof, CC exponentiation + joint decryption) and the transport-security
layer (Ed25519/X25519, Ed25519 X.509 PKI, implemented in Rust) — so the deck's
existing "cast-as-intended" claim is now backed by the actual construction.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Proof-of-concept reimplementation of the Swiss Post e-voting
cryptographic protocol in Go. Single binary, 52 source files,
2 dependencies. Covers ElGamal encryption, Bayer-Groth verifiable
shuffles, zero-knowledge proofs, return codes, and a full
election ceremony demo.