Make the live cockpit foolproof to run:
- Auto-open the default browser on start (macOS/Linux/Windows; --no-open to
disable). Binds the listener first, so the browser only opens once the server
is accepting connections.
- Clear message when the port is already in use instead of a raw bind error.
- A prominent "▶ Run the election again" button appears when the ceremony
finishes, so replaying needs no arcane page-reload knowledge.
- Second viewer now waits gracefully (mutex) instead of getting a 409.
Verified in-browser: replay button shows on completion; port-busy prints a
friendly message.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Extend the LaTeX→MathML converter for the deep-instrumentation notation:
big operators ∏ ∑ with msubsup limits (\sum_{i=1}^{m}), ∘ ∗ ∼ log, and the
dots family (\cdots ⋯, \ldots …, \vdots, \ddots). Handle _{}^{} pairs as
msubsup and ignore \textstyle/\Bigg.
Trim the shuffle-argument template so the core relation fits without wrapping.
Verified in a real browser (6-voter run, full 2×3 shuffle matrix so every
sub-argument fires): Pedersen commitment, all five Bayer-Groth sub-arguments
(shuffle, product, Hadamard, zero, SVP, multi-exp), and partial decryption all
render as clean typeset math with live values — no console errors.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The differentiator. A single self-contained browser page (no libraries, offline)
renders each real cryptographic operation as typeset mathematics the instant it
runs, with the actual runtime values:
- E_1 = (γ, φ) = (g^r, pk^r·m), r ← Z_q (ElGamal ballot encryption)
- e = H((p,q,g), y, c, h_aux) mod q (Fiat-Shamir challenge)
- C' = { ReEnc_pk(C_π(i); ρ_i) } (Bayer-Groth verifiable shuffle)
- σ ← Ed25519.Sign_sk(SHA256(envelope)) (transport signature)
- s = a·B = b·A ∈ X25519, k = SHA256(…) (X25519 key agreement)
Math is rendered via a focused LaTeX→native-MathML converter written for exactly
the notation the instrumentation emits — so it works in any modern browser with
zero dependencies and nothing to ship. Unknown tokens fall back to literal text,
never crashing the view.
`evote cockpit` starts an HTTP server; on page connect it runs one full multi-
party ceremony, streaming every crypto event over SSE with configurable pacing
(--delay) so a human can follow along. A stakeholder sidebar highlights the
acting party; a phase timeline tracks setup→cards→voting→tally→verify; each op
shows its live values as expandable, copyable chips.
Verified in a real browser: all five operation kinds render correctly (96 sign,
36 challenge, 6 keyex, 2 encrypt, 5 shuffle in a 2-voter run), no console errors,
ceremony completes and verifies.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
