diff --git a/SharpRSS.Blazor/Auth/SRSSAuthenticationStateProvider.cs b/SharpRSS.Blazor/Auth/SRSSAuthenticationStateProvider.cs
index 538c432..da60a16 100644
--- a/SharpRSS.Blazor/Auth/SRSSAuthenticationStateProvider.cs
+++ b/SharpRSS.Blazor/Auth/SRSSAuthenticationStateProvider.cs
@@ -1,3 +1,4 @@
+using Blazored.LocalStorage;
 using DotBased.Logging;
 using Microsoft.AspNetCore.Components.Authorization;
 using SharpRSS.Business.Services;
@@ -7,7 +8,7 @@ namespace SharpRSS.Blazor.Auth;
 
 public class SRSSAuthenticationStateProvider : AuthenticationStateProvider
 {
-    public SRSSAuthenticationStateProvider(IHttpContextAccessor contextAccessor, AuthService authService)
+    public SRSSAuthenticationStateProvider(IHttpContextAccessor contextAccessor, AuthService authService, ILocalStorageService localStorageService)
     {
         _logger = LogService.RegisterLogger(typeof(SRSSAuthenticationStateProvider));
         if (contextAccessor.HttpContext != null)
@@ -19,11 +20,20 @@ public class SRSSAuthenticationStateProvider : AuthenticationStateProvider
             throw ex;
         }
         _authService = authService;
+        _localStorageService = localStorageService;
     }
-
+    
+    /*
+     * Services
+     */
     private readonly ILogger _logger;
     private readonly HttpContext _httpContext;
     private readonly AuthService _authService;
+    private readonly ILocalStorageService _localStorageService;
+    /*
+     * Consts
+     */
+    private const string AuthIdName = "srss_auth_id";
     
     public override Task<AuthenticationState> GetAuthenticationStateAsync()
     {
diff --git a/SharpRSS.Blazor/Program.cs b/SharpRSS.Blazor/Program.cs
index 1c2f50a..4360b05 100644
--- a/SharpRSS.Blazor/Program.cs
+++ b/SharpRSS.Blazor/Program.cs
@@ -1,3 +1,4 @@
+using Blazored.LocalStorage;
 using Microsoft.EntityFrameworkCore;
 using MudBlazor.Services;
 using SharpRSS.Blazor.Components;
@@ -7,6 +8,7 @@ using SharpRSS.Data;
 var builder = WebApplication.CreateBuilder(args);
 
 builder.UseSRSS();
+builder.Services.AddBlazoredLocalStorage();
 
 // Add services to the container.
 builder.Services.AddRazorComponents()
diff --git a/SharpRSS.Blazor/SharpRSS.Blazor.csproj b/SharpRSS.Blazor/SharpRSS.Blazor.csproj
index 392cb44..51196ae 100644
--- a/SharpRSS.Blazor/SharpRSS.Blazor.csproj
+++ b/SharpRSS.Blazor/SharpRSS.Blazor.csproj
@@ -12,6 +12,7 @@
     </ItemGroup>
 
     <ItemGroup>
+      <PackageReference Include="Blazored.LocalStorage" Version="4.5.0" />
       <PackageReference Include="MudBlazor" Version="6.20.0" />
     </ItemGroup>
 
diff --git a/SharpRSS.Business/Services/AuthService.cs b/SharpRSS.Business/Services/AuthService.cs
index be21975..f85bd99 100644
--- a/SharpRSS.Business/Services/AuthService.cs
+++ b/SharpRSS.Business/Services/AuthService.cs
@@ -22,4 +22,9 @@ public class AuthService
     {
         return Result.Failed("NotImplemented");
     }
+
+    public async Task<Result> ValidateAuthenticationStateAsync(string id)
+    {
+        return Result.Failed("NotImplemented");
+    }
 }
\ No newline at end of file
diff --git a/SharpRSS.Data/Domains/Auth/AuthenticationStateModel.cs b/SharpRSS.Data/Domains/Auth/AuthenticationStateModel.cs
new file mode 100644
index 0000000..4dbb23f
--- /dev/null
+++ b/SharpRSS.Data/Domains/Auth/AuthenticationStateModel.cs
@@ -0,0 +1,10 @@
+namespace SharpRSS.Data.Domains.Auth;
+
+public class AuthenticationStateModel
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+    public DateTime Created { get; set; } = DateTime.Now;
+    public DateTime LastHit { get; set; }
+    public string UserIdReference { get; set; } = string.Empty;
+    public bool LoggedIn { get; set; }
+}
\ No newline at end of file
diff --git a/SharpRSS.Data/Domains/Auth/Identity/RoleModel.cs b/SharpRSS.Data/Domains/Auth/Identity/RoleModel.cs
new file mode 100644
index 0000000..b33e675
--- /dev/null
+++ b/SharpRSS.Data/Domains/Auth/Identity/RoleModel.cs
@@ -0,0 +1,8 @@
+namespace SharpRSS.Data.Domains.Auth.Identity;
+
+public class RoleModel
+{
+    public string UserId { get; set; } = string.Empty;
+    public string RoleId { get; set; } = string.Empty;
+    public string Description { get; set; } = string.Empty;
+}
\ No newline at end of file
diff --git a/SharpRSS.Data/Domains/Auth/Identity/UserModel.cs b/SharpRSS.Data/Domains/Auth/Identity/UserModel.cs
new file mode 100644
index 0000000..81f9a06
--- /dev/null
+++ b/SharpRSS.Data/Domains/Auth/Identity/UserModel.cs
@@ -0,0 +1,15 @@
+namespace SharpRSS.Data.Domains.Auth.Identity;
+
+public class UserModel
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+    public string Email { get; set; } = string.Empty;
+    public string UserName { get; set; } = string.Empty;
+    public string PasswordHash { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+    public string FamilyName { get; set; } = string.Empty;
+    public DateTime CreatedDate { get; set; } = DateTime.Now;
+    public DateTime LastLogin { get; set; }
+    public bool IsEnabled { get; set; }
+    public bool IsAdmin { get; set; }
+}
\ No newline at end of file
diff --git a/SharpRSS.Data/Domains/Auth/RegisterModel.cs b/SharpRSS.Data/Domains/Auth/RegisterModel.cs
new file mode 100644
index 0000000..6113bbc
--- /dev/null
+++ b/SharpRSS.Data/Domains/Auth/RegisterModel.cs
@@ -0,0 +1,10 @@
+namespace SharpRSS.Data.Domains.Auth;
+
+public class RegisterModel
+{
+    public string UserName { get; set; } = string.Empty;
+    public string Password { get; set; } = string.Empty;
+    public string Name { get; set; } = string.Empty;
+    public string FamilyName { get; set; } = string.Empty;
+    public string Email { get; set; } = string.Empty;
+}
\ No newline at end of file