lens/scripts/kat/dkg_ed25519_n7_t5.json at main

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zeekay 2c63fd34fc lens: classical curve threshold kernel — sister to Pulsar

Lens is the curve-based threshold signing kernel for Lux. It is the
classical analogue of Pulsar (the lattice kernel at github.com/luxfi/pulsar).
Both kernels share the same lifecycle shape — Bootstrap → Reshare* →
Reanchor — and the same activation circuit-breaker contract. They differ
only in the math field: Pulsar over R_q (Module-LWE), Lens over a
prime-order curve group (discrete log).

Curves shipped: Ed25519, secp256k1, Ristretto255. Each has a
deterministically-derived secondary Pedersen generator H from a
Lens-specific nothing-up-my-sleeve tag.

Sign math: FROST 2-round Schnorr threshold signing per RFC 9591
(Komlo-Goldberg 2020). Verifier checks z·G ?= R + c·X under the
unchanged group public key.

Reshare math: HJKY97 zero-poly Refresh + Desmedt-Jajodia ReshareToNewSet
over the curve scalar field. Master secret s is preserved; only the
share distribution rotates per epoch.

Activation cert message format: QUASAR-LENS-ACTIVATE-v1, byte-equivalent
shape to QUASAR-PULSAR-ACTIVATE-v1.

Hash suite: HashSuite interface with Lens-SHA3 (production, cSHAKE256 /
KMAC256 / TupleHash256) and Lens-BLAKE3 (legacy) profiles.

DKG: distributed FROST DKG with Feldman commitments. No trusted dealer
required at genesis if the chain prefers proper distributed DKG.

KAT oracles: cmd/reshare_oracle and cmd/dkg_oracle emit deterministic
JSON vectors for cross-language byte-equality validation against a
future luxcpp/crypto/lens/ port.

Tests: full unit + integration coverage on every shipped curve. 60
unique tests, 0 failures.

2026-03-03 12:00:00 -08:00

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 {
   "curve": "ed25519",
   "n": 7,
   "t": 5,
   "seed": "lens.dkg.kat.v1",
   "group_key_hex": "84261930bb3e8ea8d1de8952fe26dbf6f4bedb26d6c02af1b829b9674c50da54",
   "shares_hex": {
     "1": "8ab4642b27d86f1a85a95b64cc5629a570ac9b3b14e4833de31c2c5ddb311203",
     "2": "fd66fe28582b760546cbefb09295600455518ed9b7b4bae0fde25e1daf0fbb02",
     "3": "82482d407032ae6e0cde525401ce15b460089e25f49750d8e61926f5298d5507",
     "4": "192654668242bd18389861c8c06877487bcaae498dcefcd7185bce801c6d440b",
     "5": "541b99107e32488443295af915b8cb861bfda0999c9ff13c8ef7f0aeac39d408",
     "6": "4466db9049be05489ad6d3e8c0f14f7a477251939058dc0dc1f773c055443b0a",
     "7": "9fbfc75b8dc09960ecc1cf673f3b7a4a946899de2c4de5faaa1b8a48e8a59909"
   },
   "verification_shares_hex": {
     "1": "7916d924ed4d0584ffe532069ac2e05c91a7615ff29915b9c0f5dc53c51ac4aa",
     "2": "d3a8f6512d00a9e64e326253d5acaac7fcfb829a8a880e12dfcbd814d9ead38c",
     "3": "3fe1434c66ced13d6ddc38f98400af1364b01c958141a32e53d76425af50704e",
     "4": "1da84cb85a2ce2e84c0114df65caca85e46ea9277989b02bac665ef9eb009e6b",
     "5": "77389945ef051f6e00003f1a34b59eebaabc3026a543c4a593fe5fa826e532e0",
     "6": "e0094a3c6798513ef78b61ba1f512a70866921841e7ab8e31bb8a1bd9a756795",
     "7": "5e97781cddcc5d6fe343c99e9c58b6b8df3e76a7fa1aed88979441bf51bc9328"
   },
   "party_order": [
 ,
 ,
 ,
 ,
 ,
 ,
 
   ]
 }

35 lines 1.3 KiB JSON Raw Permalink Blame History

35 lines

1.3 KiB

JSON

Raw Permalink Blame History