Refactoring and password hashing

Models/User.cs

@@ -3,6 +3,7 @@ using System;
 using MongoDB.Bson;
 using MongoDB.Bson.Serialization.Attributes;
 using MongoDB.Bson.Serialization.Conventions;
+using MongoDB.Bson.Serialization.IdGenerators;
 using MongoDB.Driver;
 
 namespace TextSender_API.Models;
@@ -27,3 +28,16 @@ public class User
     public DateTime? DateCreated { get; set; }
 #endregion
 }
+
+public class Salt
+{
+    #region Properties
+    [BsonId]
+    [BsonRepresentation(BsonType.ObjectId)]
+    public string? Id { get; set; }
+    [BsonElement("key")]
+    public byte[]? Key { get; set; }
+    [BsonElement("user_id")]
+    public string?  UserId { get; set; }
+    #endregion
+}