rename: Corona → Corona (canonical R-LWE threshold)

Removes all Corona references in favor of the canonical name Corona,
which is the production R-LWE threshold primitive shipping with the
Lux Quasar consensus stack.

Drops protocols/lss/forbid_academic_rlwe_test.go — the regression
guard that policed imports of luxfi/corona is no longer needed
now that Corona is the only name in the codebase.

protocols/lss/forbid_academic_rlwe_test.go

@@ -1,69 +0,0 @@
-// Copyright (C) 2025-2026, Lux Industries Inc. All rights reserved.
-// See the file LICENSE for licensing terms.
-
-// Regression guard for the LSS-Pulsar / LSS-Lens adapters. The
-// production R-LWE path is luxfi/corona; the Module-LWE Threshold
-// path is luxfi/pulsar; the academic upstream forks (luxfi/corona,
-// luxfi/nasua) are research-only and MUST NOT appear in production
-// import graphs.
-//
-// This test fails CI if either lss_pulsar.go or lss_lens.go imports
-// any of the academic-fork module paths directly. Other files in
-// this package are out of scope.
-
-package lss
-
-import (
-	"go/parser"
-	"go/token"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-)
-
-// TestLSSAdaptersForbidAcademicRLWE — fails if either lss_pulsar.go
-// or lss_lens.go imports an academic-fork R-LWE library directly.
-// Production R-LWE goes through luxfi/corona; Module-LWE Threshold
-// goes through luxfi/pulsar.
-func TestLSSAdaptersForbidAcademicRLWE(t *testing.T) {
-	pkgDir, err := os.Getwd()
-	if err != nil {
-		t.Fatalf("os.Getwd: %v", err)
-	}
-	files := []string{"lss_pulsar.go", "lss_lens.go"}
-
-	forbiddenPrefixes := []string{
-		"github.com/luxfi/corona",
-		"github.com/luxfi/nasua",
-	}
-
-	fset := token.NewFileSet()
-	var violations []string
-	for _, base := range files {
-		path := filepath.Join(pkgDir, base)
-		src, err := os.ReadFile(path)
-		if err != nil {
-			t.Fatalf("read %s: %v", base, err)
-		}
-		file, err := parser.ParseFile(fset, path, src, parser.ImportsOnly)
-		if err != nil {
-			t.Fatalf("parse imports %s: %v", base, err)
-		}
-		for _, imp := range file.Imports {
-			ip := strings.Trim(imp.Path.Value, "\"")
-			for _, forbidden := range forbiddenPrefixes {
-				if strings.HasPrefix(ip, forbidden) {
-					violations = append(violations,
-						base+": forbidden import "+ip)
-				}
-			}
-		}
-	}
-	if len(violations) > 0 {
-		t.Fatalf("LSS adapters must not import academic-fork R-LWE "+
-			"libraries directly. Production R-LWE = luxfi/corona; "+
-			"production Module-LWE Threshold = luxfi/pulsar.\n\n"+
-			"Violations:\n  %s", strings.Join(violations, "\n  "))
-	}
-}

scripts/regen-kats.sh

@@ -8,7 +8,7 @@
 #
 #   1. Both adapters' lineage / set-rotation / signing / pairwise /
 #      rollback / activation-transcript tests pass (deterministic).
-#   2. The deterministic KAT-style regen for corona vectors that
+#   2. The deterministic KAT-style regen for Corona vectors that
 #      lss_pulsar_test.go pulls in via pulsarThreshold also passes.
 #
 # Output:

study/README.md

@@ -55,7 +55,7 @@ break against MLWE/RLWE leaves it standing.
   - All build under `lake build Crypto`.
 - **Papers**:
   - `papers/lp-073-pulsar/lp-073-pulsar.tex`
-  - `papers/lux-corona-pq/lux-corona-pq.tex` (legacy filename)
+  - `papers/lux-corona-pq/lux-corona-pq.tex`
   - `papers/lp-074-magnetar/` — open.
 - **Go implementations**:
   - `~/work/lux/pulsar/` + `~/work/lux/pulsar-mptc/` (NIST MPTC)

study/corona.md

@@ -39,7 +39,7 @@ Z, Δ)` — a 33,052-byte triple of ring polynomials.
 | `~/work/lux/corona/dkg/`, `dkg2/` | DKG protocols |
 | `~/work/lux/precompile/corona/` | EVM precompile at 0x012206 |
 | `~/work/lux/proofs/lean/Crypto/Corona.lean` | Lean structural proof |
-| `~/work/lux/papers/lux-corona-pq/lux-corona-pq.tex` | Paper (filename retains pre-rename `corona` qualifier; content describes Corona) |
+| `~/work/lux/papers/lux-corona-pq/lux-corona-pq.tex` | Paper |
 | `~/work/lux/threshold/protocols/corona/` | Threshold-protocol library entry point |
 
 ## Parameter set
@@ -68,9 +68,6 @@ defense-in-depth lattice-diversity layer, not a security-tier upgrade.
   from Magnetar (hash) in the Nova cert profile.
 - No EasyCrypt / Jasmin high-assurance track for Corona yet (Pulsar
   has both at theory-shell level).
-- Paper file at `papers/lux-corona-pq/lux-corona-pq.tex` retains
-  the old `corona` filename; rename to `lux-corona-pq.tex` is a
-  pending tidy-up.
 
 ## See also