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https://github.com/saymrwulf/swisspost-evoting-go-poc.git
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saymrwulf
313db92321
pkg/party models each endpoint of the system as a separate object holding only its own private state, wired together through the transport bus. - ceremony.go: NewCeremony bootstraps the Ed25519 root CA, enrolls all parties (setup, 4 CCs, electoral board, voting server, verifier, N voters) with CA-signed identity certs, registers each in the directory, and wires its handler into the bus. - parties.go: the six party types and a shared hello/ack handshake; Handshake() proves the full sign -> route -> verify -> reply -> verify path for every party before any election logic runs. - state.go: per-party private state structs (nothing shared across parties). - transcript.go: PublicTranscript, the append-only bulletin board a remote verifier will consume (no secrets). - phases.go: phase handlers reject unknown message types cleanly (the transport boundary never panics on unexpected input) — filled in over the next commits. Transport CA API simplified to own its serial counter (NewCA/Issue). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
30 lines
1.3 KiB
Go
30 lines
1.3 KiB
Go
package party
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import (
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"github.com/user/evote/pkg/elgamal"
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emath "github.com/user/evote/pkg/math"
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"github.com/user/evote/pkg/mixnet"
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"github.com/user/evote/pkg/zkp"
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)
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// PublicTranscript is the append-only bulletin board: everything a remote
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// verifier needs to re-check the election, and nothing secret. It is populated
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// by the parties as the ceremony proceeds and consumed by the verifier.
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type PublicTranscript struct {
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ElectionID string
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// Setup artifacts.
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CCElectionPKs []elgamal.PublicKey // per-CC election public keys
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CCSchnorr [][]zkp.SchnorrProof // per-CC Schnorr proofs of key knowledge
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EBPublicKey elgamal.PublicKey // electoral board public key
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ElectionPK elgamal.PublicKey // combined election public key
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Primes []string // decimal encodings of the encoding primes
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// Tally artifacts.
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MixInput *elgamal.CiphertextVector // padded ballot ciphertexts fed to shuffle 0
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Shuffles []mixnet.VerifiableShuffle // one per CC + EB
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PartialDecrypts []*elgamal.CiphertextVector // partial decryption after each CC
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DecryptProofs [][]zkp.DecryptionProof // per-stage decryption proofs
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FinalPlaintexts []*emath.GqVector // EB's decrypted messages
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Result map[int]int // option index → count
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}
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