diff --git a/src/models/MetaData.ts b/src/models/MetaData.ts
index 21d9b1d..6999c0a 100644
--- a/src/models/MetaData.ts
+++ b/src/models/MetaData.ts
@@ -1,8 +1,15 @@
 import { model, Schema } from "mongoose";
+import { fieldEncryption } from "mongoose-field-encryption";
+
+export enum ILicenseMetaType {
+    TEXT = "TEXT",
+    NUMBER = "NUMBER",
+    BOOLEAN = "BOOLEAN"
+}
 
 export interface IMetaData {
     projectId: string,
-    type: string,
+    type: ILicenseMetaType,
     name: string,
     description?: string,
     defaultValue?: string,
@@ -22,7 +29,10 @@ const MetaDataSchema = new Schema<IMetaData>({
         type: String,
         required: true
     },
-    description: String,
+    description: {
+        type: String,
+        required: true
+    },
     defaultValue: String,
     public: {
         type: Boolean,
@@ -30,4 +40,10 @@ const MetaDataSchema = new Schema<IMetaData>({
     }
 });
 
-export const MetaData = model<IMetaData>("MetaData", MetaDataSchema);
\ No newline at end of file
+MetaDataSchema.plugin(fieldEncryption, {
+    fields: ["projectId", "type", "name", "description", "defaultValue", "public"],
+    secret: process.env.ENC_KEY,
+    saltGenerator: () => process.env.SIG_KEY,
+});
+
+export const MetaData = model<IMetaData>("meta", MetaDataSchema);
\ No newline at end of file