Files
zeekay ca327f37cb papers: lock PQ threshold-sig stack to dealerless canon (Pulsar Mithril RSS + hyperball, dual-leg Module-LWE)
Pulsar (LP-073, LP-223): the dealer is DEAD AT BOTH ENDS.
- Keygen: dealerless via Mithril short replicated secret sharing (Celi-del
  Pino-Espitau-Niot-Prest, ia.cr/2026/013, USENIX Sec 2026) -- the published
  escape from the naive-additive-S_eta wall; group key signs under the STOCK
  FIPS-204 verifier (compatibility PROVEN), per-subset mod-q reduction
  unblocks large committees (n=16,t=14). Replaces the old 'key generation
  stays trusted-dealer / provably unreachable' claim everywhere.
- Signing: no-reconstruct hyperball 3-round signer (z_j=y_j+c*s1_(j); no
  party forms s1/s2/seed/sk; mask y never serialised), verifies under stock
  ML-DSA. CI invariant forbids trusted-dealer keygen in production files.
- Claim discipline: (A) standard-FIPS-204-verifier-COMPATIBLE = PROVEN vs
  (B) full FIPS-204 KeyGen-distribution-EQUIVALENCE = labeled open residual;
  malicious-HARDENED != fully-malicious-secure-PROVEN. Versions -> pulsar
  v1.7.1, threshold v1.10.2, consensus v1.29.1, mlwe shared base.
- Fixed pre-pivot staleness: Pulsar sig is byte-equal ML-DSA-65 (~3.3KB),
  not the ~33KB 48-bit (c,z,Delta) shared kernel; q=8380417 production.

Corona (LP-220): Module-LWE (Ringtail/Raccoon, M=8 N=7, q=0x1000000004A01),
natively dealerless (Pedersen-VSS noise-flooded), no-reconstruct signing,
consumes shared luxfi/mlwe. Both lattice legs now dealerless -> Corona is
defence-in-depth, NOT the sole permissionless-public carrier. P3Q kind-0x02
dispatch still abiFalse, but the library landed + dedicated 0x012206 wired.

Dual-leg diversity (LP-020, LP-220, LP-magnetar): Corona + Pulsar BOTH
Module-LWE -> distinct schemes/params, adversary must break BOTH, strictly
stronger than either; NOT hardness-disjoint -- assumption-disjoint leg is
hash-based Magnetar (SLH-DSA). Cite Mithril ia.cr/2026/013.

Scan targets: lp-020 (Ring-LWE->Module-LWE, versions, residual B),
lp-stricte2epq (canonical-status note: byte-equal FIPS-204, sampled small
committees n=8/t=7/m=12/r=8 not single n=64; sig sizes), lp-magnetar
(Corona Ring-LWE->Module-LWE).

All 6 PDFs rebuilt clean (pdflatex+bibtex+pdflatex x2): lp-073 59pp,
lp-220 8pp, lp-223 5pp, lp-020 32pp, lp-stricte2epq 47pp, lp-magnetar 13pp.
2026-06-28 13:37:54 -07:00
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