Improve local storage

src/app/store/localstore.service.ts

@@ -1,36 +1,48 @@
 import { Injectable } from '@angular/core';
-import { SHA1, SHA256, AES, enc }  from  'crypto-js'
+import { AES, enc, SHA1 }  from  'crypto-js'
 
 @Injectable({
   providedIn: 'root'
 })
 export class LocalstoreService {
 
-  constructor() { }
+  private prefix = 'v0-'
 
+  constructor() { }
 
   get( keyName, safe) {
 
+    keyName = this.prefix + keyName
+
     const ciphertext = localStorage.getItem(keyName) 
 
+    const hashKey = SHA1(keyName).toString()
+
     if(ciphertext) {
-      const bytes   = AES.decrypt(ciphertext, keyName)
-      var decryptedData = JSON.parse(bytes.toString(enc.Utf8));
+      const bytes   = AES.decrypt(ciphertext, hashKey)
+      var decryptedData = bytes.toString(enc.Utf8);
+      if(typeof(decryptedData) != 'string') {
+        decryptedData = JSON.parse(decryptedData)
+      }
       return decryptedData;
     } else {
       return  safe;
     }
   }
 
-  set(key, value) {
+  set(keyName, value) {
+    
+    keyName = this.prefix + keyName
 
     if(typeof(value) != 'string') {
       value = JSON.stringify(value)
-    } 
+    }
+
+    const hashKey = SHA1(keyName).toString()
 
     const data = value
-    const encoded = AES.encrypt( data, key).toString();
-    localStorage.setItem(key, encoded)
+    const encoded = AES.encrypt( data, hashKey).toString();
+    localStorage.setItem(keyName, encoded)
   }
 
 }