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>
New section covers splitting the parties, the Rust transport-security layer
(Ed25519/X25519 over cgo, no RSA), the validated wire boundary, and cast-as-
intended return codes. Also corrects the error-handling slide (the netdemo mode
does cross a real trust boundary) and notes the Rust dependency on the deps
slide. Verified: deck serves 200 and the script balances.
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.
