diff --git a/.gitignore b/.gitignore
index 3633f9c..13c495c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,7 +11,7 @@ pnpm-debug.log*
 lerna-debug.log*
 
 ui/node_modules
-ui/src/utils/encryptUtils.ts
+# ui/src/utils/encryptUtils.ts
 db
 dist-ssr
 *.local
diff --git a/ui/src/utils/encryptUtils.ts b/ui/src/utils/encryptUtils.ts
new file mode 100644
index 0000000..f57c855
--- /dev/null
+++ b/ui/src/utils/encryptUtils.ts
@@ -0,0 +1,18 @@
+// utils/encryptUtils
+const defaultSalt = import.meta.env.VITE_SHARE_KEY_ENCODE_KEY;
+
+export function encodeKey(text: string, salt: string = defaultSalt): string {
+  const randomLength = Math.floor(Math.random() * 13) + 1; // Random length between 1 and 13
+  const randomPadding = Math.random()
+    .toString(36)
+    .substring(2, 2 + randomLength);
+  const input = randomPadding + salt + text;
+  return btoa(encodeURIComponent(input));
+}
+
+export function decodeKey(encoded: string, salt: string = defaultSalt): string {
+  const decoded = decodeURIComponent(atob(encoded));
+  const saltIndex = decoded.indexOf(salt);
+  if (saltIndex === -1) throw new Error("Invalid encoded string or salt");
+  return decoded.slice(saltIndex + salt.length);
+}