added hashing algorithm + user password hash

src/QuickDish.Core/QuickDish.Core.csproj

@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Isopoh.Cryptography.Argon2" Version="2.0.0" />
+  </ItemGroup>
+
 </Project>

src/QuickDish.Core/User.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using Isopoh.Cryptography.Argon2;
 
 namespace QuickDish.Core;
 
@@ -10,7 +6,7 @@ internal class User
 {
     public int Id { get; set; }
     public string Username { get; set; }
-    public string PasswordHash { get; set; }
+    private string PasswordHash;
 
     public User(int id, string username, string passwordHash)
     {
@@ -28,4 +24,16 @@ internal class User
         PasswordHash = passwordHash;
     }
 
+    public bool VerifyPassword(string password)
+    {
+        return Argon2.Verify(PasswordHash, password);
+    }
+
+    public void SetPassword(string password)
+    {
+        if (string.IsNullOrEmpty(password))
+            throw new ArgumentException("Password can't be empty", nameof(password));
+
+        PasswordHash = Argon2.Hash(password);
+    }
 }