From 951905b33c47ba245ece95487dee0b345a088055 Mon Sep 17 00:00:00 2001
From: Paul Spenke <paul@spenke-nordic.com>
Date: Sat, 21 Feb 2026 17:19:03 +0100
Subject: [PATCH] Introduce `useCrypto` composable for encryption and
 decryption with RSA

---
 src/composables/useCrypto.ts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/composables/useCrypto.ts

diff --git a/src/composables/useCrypto.ts b/src/composables/useCrypto.ts
new file mode 100644
index 0000000..5ff2dad
--- /dev/null
+++ b/src/composables/useCrypto.ts
@@ -0,0 +1,18 @@
+import { JSEncrypt } from 'jsencrypt';
+const secret = import.meta.env.VITE_SECRET;
+
+if (!secret) {
+  throw new Error('VITE_SECRET is not set');
+}
+const crypt = new JSEncrypt();
+crypt.setPrivateKey(secret);
+
+export function useCrypto() {
+  const encrypt = (value: string) => crypt.encrypt(value);
+  const decrypt = (value: string) => crypt.decrypt(value);
+
+  return {
+    encrypt,
+    decrypt,
+  };
+}