fix(zkp-hamiltonian): ARM64 build fixes and RPCD CLI flag corrections

- Add #ifndef guard for ZKP_MAX_N in zkp_types.h to allow command-line override
- Copy OpenWrt Makefile to package root for proper feed detection
- Fix RPCD luci.zkp CLI flags: -r for ratio, -o for output prefix
- Add temp directory handling for keygen file generation

Tested on MochaBin router:
- zkp_keygen: generates graph + key pair
- zkp_prover: creates NIZK proof
- zkp_verifier: validates proof → ACCEPT

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/HISTORY.md

@@ -3239,3 +3239,36 @@ git checkout HEAD -- index.html
     - **Files:**
       - `luci-app-metablogizer/root/usr/libexec/rpcd/luci.metablogizer`
     - **Commit:** `ec8e96a7 fix(metablogizer): Auto-sync mitmproxy routes on HAProxy reload`
+
+42. **LuCI ZKP Dashboard (2026-02-24)**
+    - Created `luci-app-zkp` package for ZKP Hamiltonian cryptographic proofs.
+    - **Dashboard Features:**
+      - Status display: library version, saved keys count, storage paths
+      - Key generation: node count (4-50), edge density selector
+      - Prove/Verify workflow with visual ACCEPT/REJECT results
+      - Keys table with Prove, Verify, Delete actions
+      - KISS theme with dark mode support
+    - **RPCD Methods:** status, keygen, prove, verify, list_keys, delete_key, get_graph
+    - **Menu Location:** Status > ZKP Cryptography
+    - Note: Requires `zkp-hamiltonian` CLI tools to be built for ARM64
+    - **Files:**
+      - `luci-app-zkp/htdocs/luci-static/resources/view/zkp/overview.js`
+      - `luci-app-zkp/root/usr/libexec/rpcd/luci.zkp`
+    - **Commit:** `b60d7fd0 feat(luci-app-zkp): Add ZKP Hamiltonian cryptographic dashboard`
+
+43. **ZKP Hamiltonian ARM64 Build & Deployment (2026-02-24)**
+    - Built `zkp-hamiltonian` package for ARM64 (aarch64_cortex-a72) using full OpenWrt toolchain.
+    - **Build Notes:**
+      - SDK lacks target OpenSSL headers; must use full toolchain in `secubox-tools/openwrt/`
+      - Fixed `ZKP_MAX_N` macro redefinition by adding `#ifndef` guard in `zkp_types.h`
+      - Fixed RPCD script CLI flags: `-r` for ratio (not `-d`), `-o` for output prefix
+    - **Deployed CLI Tools:**
+      - `zkp_keygen` - 75KB binary
+      - `zkp_prover` - 76KB binary
+      - `zkp_verifier` - 75KB binary
+    - **Verification:** Full workflow tested on router (keygen → prove → verify → ACCEPT)
+    - **Files:**
+      - `zkp-hamiltonian/Makefile` (moved from openwrt/ subdirectory)
+      - `zkp-hamiltonian/include/zkp_types.h` (ZKP_MAX_N guard)
+      - `luci-app-zkp/root/usr/libexec/rpcd/luci.zkp` (CLI flag fixes)
+

.claude/WIP.md

@@ -866,6 +866,12 @@ _Last updated: 2026-02-24 (Service Stability Fixes)_
 
 ### Just Completed (2026-02-24)
 
+- **LuCI ZKP Dashboard** — DONE (2026-02-24)
+  - Web UI for ZKP Hamiltonian cryptographic proofs
+  - Features: keygen, prove, verify, keys management
+  - KISS theme with dark mode
+  - Commit: b60d7fd0
+
 - **MetaBlogizer Upload Workflow Fix** — DONE (2026-02-24)
   - Sites now work immediately after upload without unpublish + expose cycle
   - Root cause: mitmproxy never received reload signal after route creation

.claude/settings.local.json

@@ -417,7 +417,9 @@
       "Bash(./zkp_verifier:*)",
       "Bash(printf:*)",
       "Bash(dd:*)",
-      "Bash(gh release create:*)"
+      "Bash(gh release create:*)",
+      "Bash(# Check if OpenWrt toolchain is available ls -la /home/reepost/CyberMindStudio/secubox-openwrt/secubox-tools/openwrt/)",
+      "Bash(# Create symlink in SDK feeds cd /home/reepost/CyberMindStudio/secubox-openwrt/secubox-tools/sdk ln -sf ../local-feed/zkp-hamiltonian/openwrt feeds/local/zkp-hamiltonian || true ls -la feeds/local/)"
     ]
   }
 }

package/secubox/luci-app-zkp/root/usr/libexec/rpcd/luci.zkp

@@ -140,10 +140,22 @@ method_keygen() {
 		return
 	fi
 
+	# Create temp directory for generation
+	local tmpdir="/tmp/zkp_gen_$$"
+	mkdir -p "$tmpdir"
+	local prefix="$tmpdir/$name"
+
 	local output
-	output=$(zkp_keygen -n "$nodes" -d "$density" -g "$graphfile" -k "$keyfile" 2>&1)
+	output=$(zkp_keygen -n "$nodes" -r "$density" -o "$prefix" 2>&1)
 	local rc=$?
 
+	# Move generated files to proper locations
+	if [ $rc -eq 0 ] && [ -f "${prefix}.graph" ] && [ -f "${prefix}.key" ]; then
+		mv "${prefix}.graph" "$graphfile"
+		mv "${prefix}.key" "$keyfile"
+	fi
+	rm -rf "$tmpdir"
+
 	if [ $rc -eq 0 ] && [ -f "$graphfile" ] && [ -f "$keyfile" ]; then
 		local graph_size=$(stat -c %s "$graphfile")
 		local key_size=$(stat -c %s "$keyfile")
@@ -201,7 +213,7 @@ method_prove() {
 	fi
 
 	local output
-	output=$(zkp_prover -g "$graphfile" -k "$keyfile" -p "$prooffile" 2>&1)
+	output=$(zkp_prover -g "$graphfile" -k "$keyfile" -o "$prooffile" 2>&1)
 	local rc=$?
 
 	if [ $rc -eq 0 ] && [ -f "$prooffile" ]; then

package/secubox/zkp-hamiltonian/Makefile

@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2026 CyberMind.FR / SecuBox
+#
+# OpenWrt package for ZKP Hamiltonian library
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=zkp-hamiltonian
+PKG_VERSION:=1.0.0
+PKG_RELEASE:=1
+PKG_LICENSE:=GPL-2.0-or-later
+PKG_MAINTAINER:=SecuBox <contact@secubox.fr>
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/zkp-hamiltonian
+  SECTION:=utils
+  CATEGORY:=Utilities
+  SUBMENU:=Encryption
+  TITLE:=Zero-Knowledge Proof Hamiltonian Library
+  DEPENDS:=+libopenssl
+  URL:=https://github.com/gkerma/secubox-openwrt
+endef
+
+define Package/zkp-hamiltonian/description
+  Zero-Knowledge Proof library based on the Hamiltonian Cycle problem.
+  Implements the Blum 1986 protocol with Fiat-Shamir NIZK transformation.
+  Uses SHA3-256 for commitments and provides CLI tools for proof generation
+  and verification.
+endef
+
+CMAKE_OPTIONS += \
+	-DOPENWRT_BUILD=ON \
+	-DBUILD_TESTS=OFF \
+	-DBUILD_TOOLS=ON \
+	-DBUILD_SHARED_LIBS=OFF \
+	-DUSE_LIBSODIUM=OFF \
+	-DZKP_MAX_N=50
+
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+	$(CP) $(CURDIR)/src $(PKG_BUILD_DIR)/
+	$(CP) $(CURDIR)/include $(PKG_BUILD_DIR)/
+	$(CP) $(CURDIR)/tools $(PKG_BUILD_DIR)/
+	$(CP) $(CURDIR)/CMakeLists.txt $(PKG_BUILD_DIR)/
+endef
+
+define Package/zkp-hamiltonian/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/zkp_keygen $(1)/usr/bin/
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/zkp_prover $(1)/usr/bin/
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/zkp_verifier $(1)/usr/bin/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_BUILD_DIR)/libzkp_hamiltonian.a $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,zkp-hamiltonian))

package/secubox/zkp-hamiltonian/include/zkp_types.h

@@ -15,7 +15,9 @@
 #include <stddef.h>
 
 /* Protocol constants */
+#ifndef ZKP_MAX_N
 #define ZKP_MAX_N        128
+#endif
 #define ZKP_NONCE_SIZE   32
 #define ZKP_HASH_SIZE    32
 #define ZKP_VERSION      0x01

package/secubox/zkp-hamiltonian/openwrt/Makefile

@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2026 CyberMind.FR / SecuBox
+#
+# OpenWrt package for ZKP Hamiltonian library
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=zkp-hamiltonian
+PKG_VERSION:=1.0.0
+PKG_RELEASE:=1
+PKG_LICENSE:=GPL-2.0-or-later
+PKG_MAINTAINER:=SecuBox <contact@secubox.fr>
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/zkp-hamiltonian
+  SECTION:=utils
+  CATEGORY:=Utilities
+  SUBMENU:=Encryption
+  TITLE:=Zero-Knowledge Proof Hamiltonian Library
+  DEPENDS:=+libopenssl
+  URL:=https://github.com/gkerma/secubox-openwrt
+endef
+
+define Package/zkp-hamiltonian/description
+  Zero-Knowledge Proof library based on the Hamiltonian Cycle problem.
+  Implements the Blum 1986 protocol with Fiat-Shamir NIZK transformation.
+  Uses SHA3-256 for commitments and provides CLI tools for proof generation
+  and verification.
+endef
+
+CMAKE_OPTIONS += \
+	-DOPENWRT_BUILD=ON \
+	-DBUILD_TESTS=OFF \
+	-DBUILD_TOOLS=ON \
+	-DBUILD_SHARED_LIBS=OFF \
+	-DUSE_LIBSODIUM=OFF \
+	-DZKP_MAX_N=50
+
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+	$(CP) ../src $(PKG_BUILD_DIR)/
+	$(CP) ../include $(PKG_BUILD_DIR)/
+	$(CP) ../tools $(PKG_BUILD_DIR)/
+	$(CP) ../CMakeLists.txt $(PKG_BUILD_DIR)/
+endef
+
+define Package/zkp-hamiltonian/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/zkp_keygen $(1)/usr/bin/
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/zkp_prover $(1)/usr/bin/
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/zkp_verifier $(1)/usr/bin/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_BUILD_DIR)/libzkp_hamiltonian.a $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,zkp-hamiltonian))