diff --git a/package-lock.json b/package-lock.json
index dca1dbb..8ab2edc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,7 @@
       "name": "rmaps-online",
       "version": "0.1.0",
       "dependencies": {
+        "@encryptid/sdk": "file:../encryptid-sdk",
         "jszip": "^3.10.1",
         "maplibre-gl": "^5.0.0",
         "nanoid": "^5.0.9",
@@ -28,6 +29,32 @@
         "typescript": "^5.7.2"
       }
     },
+    "../encryptid-sdk": {
+      "name": "@encryptid/sdk",
+      "version": "0.1.0",
+      "license": "MIT",
+      "dependencies": {
+        "@noble/curves": "^2.0.1",
+        "@noble/hashes": "^2.0.1",
+        "hono": "^4.11.0"
+      },
+      "devDependencies": {
+        "@types/react": "^19.0.0",
+        "typescript": "^5.7.0"
+      },
+      "peerDependencies": {
+        "next": ">=14.0.0",
+        "react": ">=18.0.0"
+      },
+      "peerDependenciesMeta": {
+        "next": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@alloc/quick-lru": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/@alloc/quick-lru/-/quick-lru-5.2.0.tgz",
@@ -75,6 +102,10 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@encryptid/sdk": {
+      "resolved": "../encryptid-sdk",
+      "link": true
+    },
     "node_modules/@eslint-community/eslint-utils": {
       "version": "4.9.0",
       "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.9.0.tgz",