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https://github.com/saymrwulf/swisspost-evoting-go-poc.git
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saymrwulf
c24650885e
Take the live-math cockpit down to the level of the Swiss Post crypto-primitives
class structure. The shuffle proof is no longer one line — you can now watch it
being constructed:
- Pedersen matrix commitment (CommitmentService analog): c_A = Comm(A; r),
c_{A,j} = h^{r_j} Π g_i^{A_ij}, emitted from CommitMatrix.
- All five Bayer-Groth sub-arguments, mirroring the *ArgumentService classes:
ShuffleArgument (composition + x,y,z challenges), ProductArgument,
HadamardArgument (entrywise product), ZeroArgument (bilinear star-map),
SingleValueProductArgument, MultiExponentiationArgument — each emits its
defining relation as LaTeX with live dimensions.
- Partial decryption + decryption proof (DecryptionProofService analog):
φ'_i = φ_i·γ_i^{-sk} with the ZK proof that log_g(pk) = log_γ(γ^sk).
New trace.KindArgument. Low-level Commit stays uninstrumented (called in
verification too — would flood the stream); CommitMatrix is the semantic step.
Test: a 6-voter ceremony (N=6 → 2×3 shuffle matrix, so m>1 and the full argument
tree runs) captures 345 live events across 8 kinds, and asserts all five named
sub-arguments appear.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
26 lines
660 B
Go
26 lines
660 B
Go
package mixnet
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import (
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"fmt"
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"github.com/user/evote/pkg/trace"
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)
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// emitArgument publishes a KindArgument trace event for one Bayer-Groth
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// sub-argument, mirroring the *ArgumentService classes of the Swiss Post
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// crypto-primitives library. Cheap when tracing is off.
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func emitArgument(name, caption, latex, ascii string, values map[string]string) {
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trace.EmitFunc(func() trace.Event {
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return trace.Event{
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Kind: trace.KindArgument,
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Caption: caption,
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LaTeX: latex,
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ASCII: ascii,
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Values: values,
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}
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})
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}
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func dims(m, n int) map[string]string {
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return map[string]string{"m": fmt.Sprintf("%d", m), "n": fmt.Sprintf("%d", n)}
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}
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