diff --git a/dotnet/AipsCore/Application/Abstract/UserContext/IRefreshTokenRepository.cs b/dotnet/AipsCore/Application/Abstract/UserContext/IRefreshTokenRepository.cs
new file mode 100644
index 0000000..a2b88dc
--- /dev/null
+++ b/dotnet/AipsCore/Application/Abstract/UserContext/IRefreshTokenRepository.cs
@@ -0,0 +1,12 @@
+using AipsCore.Application.Common.Authentication.Models;
+using AipsCore.Domain.Models.User.ValueObjects;
+
+namespace AipsCore.Application.Abstract.UserContext;
+
+public interface IRefreshTokenRepository
+{
+    Task AddAsync(string token, UserId userId, CancellationToken cancellationToken = default);
+    Task<RefreshToken> GetByValueAsync(string token, CancellationToken cancellationToken = default);
+    Task RevokeAsync(string token, CancellationToken cancellationToken = default);
+    Task RevokeAllAsync(UserId userId, CancellationToken cancellationToken = default);
+}
\ No newline at end of file
diff --git a/dotnet/AipsCore/Application/Abstract/UserContext/ITokenProvider.cs b/dotnet/AipsCore/Application/Abstract/UserContext/ITokenProvider.cs
index 26932bf..15de6e8 100644
--- a/dotnet/AipsCore/Application/Abstract/UserContext/ITokenProvider.cs
+++ b/dotnet/AipsCore/Application/Abstract/UserContext/ITokenProvider.cs
@@ -5,5 +5,6 @@ namespace AipsCore.Application.Abstract.UserContext;
 
 public interface ITokenProvider
 {
-    string Generate(User user, IList<UserRole> roles);
+    string GenerateAccessToken(User user, IList<UserRole> roles);
+    string GenerateRefreshToken();
 }
\ No newline at end of file
diff --git a/dotnet/AipsCore/Application/Common/Authentication/Dtos/LogInUserResultDto.cs b/dotnet/AipsCore/Application/Common/Authentication/Dtos/LogInUserResultDto.cs
new file mode 100644
index 0000000..43317eb
--- /dev/null
+++ b/dotnet/AipsCore/Application/Common/Authentication/Dtos/LogInUserResultDto.cs
@@ -0,0 +1,3 @@
+namespace AipsCore.Application.Common.Authentication.Dtos;
+
+public record LogInUserResultDto(string AccessToken, string RefreshToken);
\ No newline at end of file
diff --git a/dotnet/AipsCore/Application/Common/Authentication/IAuthService.cs b/dotnet/AipsCore/Application/Common/Authentication/IAuthService.cs
index f5c3215..abd9b4d 100644
--- a/dotnet/AipsCore/Application/Common/Authentication/IAuthService.cs
+++ b/dotnet/AipsCore/Application/Common/Authentication/IAuthService.cs
@@ -1,3 +1,4 @@
+using AipsCore.Application.Common.Authentication.Models;
 using AipsCore.Domain.Models.User;
 
 namespace AipsCore.Application.Common.Authentication;
@@ -6,4 +7,5 @@ public interface IAuthService
 {
     Task SignUpWithPasswordAsync(User user, string password, CancellationToken cancellationToken = default);
     Task<LoginResult> LoginWithEmailAndPasswordAsync(string email, string password, CancellationToken cancellationToken = default);
+    Task<LoginResult> LoginWithRefreshTokenAsync(RefreshToken refreshToken, CancellationToken cancellationToken = default);
 }
\ No newline at end of file
diff --git a/dotnet/AipsCore/Application/Common/Authentication/Models/AccessToken.cs b/dotnet/AipsCore/Application/Common/Authentication/Models/AccessToken.cs
new file mode 100644
index 0000000..4ac3966
--- /dev/null
+++ b/dotnet/AipsCore/Application/Common/Authentication/Models/AccessToken.cs
@@ -0,0 +1,3 @@
+namespace AipsCore.Application.Common.Authentication.Models;
+
+public record AccessToken(string Value);
\ No newline at end of file
diff --git a/dotnet/AipsCore/Application/Common/Authentication/Models/RefreshToken.cs b/dotnet/AipsCore/Application/Common/Authentication/Models/RefreshToken.cs
new file mode 100644
index 0000000..7ec8786
--- /dev/null
+++ b/dotnet/AipsCore/Application/Common/Authentication/Models/RefreshToken.cs
@@ -0,0 +1,5 @@
+using AipsCore.Domain.Models.User.ValueObjects;
+
+namespace AipsCore.Application.Common.Authentication.Models;
+
+public record RefreshToken(string Value, string UserId, DateTime ExpiresAt);
\ No newline at end of file
diff --git a/dotnet/AipsCore/Application/Common/Authentication/Token.cs b/dotnet/AipsCore/Application/Common/Authentication/Token.cs
deleted file mode 100644
index 18d5af1..0000000
--- a/dotnet/AipsCore/Application/Common/Authentication/Token.cs
+++ /dev/null
@@ -1,3 +0,0 @@
-namespace AipsCore.Application.Common.Authentication;
-
-public record Token(string Value);
\ No newline at end of file