diff --git a/Apps/Api/Api.csproj b/Apps/Api/Api.csproj
index 413ada0..ccc7f75 100644
--- a/Apps/Api/Api.csproj
+++ b/Apps/Api/Api.csproj
@@ -5,6 +5,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="5.0.5" />
     <PackageReference Include="NSwag.AspNetCore" Version="13.10.9" />
     <PackageReference Include="NSwag.MSBuild" Version="13.10.9">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/Apps/Api/Controllers/AccountsController.cs b/Apps/Api/Controllers/AccountsController.cs
new file mode 100644
index 0000000..bc13bd0
--- /dev/null
+++ b/Apps/Api/Controllers/AccountsController.cs
@@ -0,0 +1,94 @@
+using System;
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using System.Threading.Tasks;
+using Infrastructure.Identity;
+using Infrastructure.Models;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.IdentityModel.Tokens;
+
+namespace Api.Controllers
+{
+  [Route("api/accounts")]
+  [ApiController]
+  [AllowAnonymous]
+  public class AccountsController : ControllerBase
+  {
+    private readonly UserManager<User> _userManager;
+    private readonly SignInManager<User> _signinManager;
+    private readonly TokenOptions _options;
+    private readonly IUserClaimsPrincipalFactory<User> _claimsFactory;
+
+    public AccountsController(UserManager<User> userManager, SignInManager<User> signinManager, TokenOptions options, IUserClaimsPrincipalFactory<User> claimsFactory)
+    {
+      _userManager = userManager;
+      _signinManager = signinManager;
+      _options = options;
+      _claimsFactory = claimsFactory;
+    }
+
+    [HttpGet("me")]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    public IActionResult Me()
+    {
+      return Ok(new
+      {
+        Id = User.FindFirstValue(ClaimTypes.NameIdentifier),
+        Name = User.Identity.Name,
+        Authenticated = User.Identity.IsAuthenticated,
+      });
+    }
+
+    [HttpPost]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
+    [ProducesResponseType(StatusCodes.Status204NoContent)]
+    public async Task<IActionResult> Register(RegisterViewModel cmd)
+    {
+      var result = await _userManager.CreateAsync(
+        new Infrastructure.Identity.User { UserName = cmd.Username }, cmd.Password);
+
+      if (!result.Succeeded)
+      {
+        return BadRequest();
+      }
+
+      return NoContent();
+    }
+
+    [HttpPost("token")]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
+    [ProducesResponseType(typeof(string), StatusCodes.Status200OK)]
+    public async Task<IActionResult> Login(LoginViewModel cmd)
+    {
+      var user = await _userManager.FindByNameAsync(cmd.Username);
+
+      if (user == null)
+      {
+        return BadRequest();
+      }
+
+      var result = await _signinManager.CheckPasswordSignInAsync(user, cmd.Password, false);
+
+      if (!result.Succeeded)
+      {
+        return BadRequest();
+      }
+
+      var principal = await _claimsFactory.CreateAsync(user);
+      var descriptor = new SecurityTokenDescriptor
+      {
+        Subject = (ClaimsIdentity)principal.Identity,
+        Expires = DateTime.UtcNow.AddDays(7),
+        Issuer = _options.Issuer,
+        Audience = _options.Audience,
+        SigningCredentials = new SigningCredentials(_options.Key, SecurityAlgorithms.HmacSha256Signature)
+      };
+      var token = new JwtSecurityTokenHandler().CreateEncodedJwt(descriptor);
+
+      return Ok(token);
+    }
+  }
+}
\ No newline at end of file
diff --git a/Apps/Api/Controllers/CommentsController.cs b/Apps/Api/Controllers/CommentsController.cs
index b9c255b..aeccb36 100644
--- a/Apps/Api/Controllers/CommentsController.cs
+++ b/Apps/Api/Controllers/CommentsController.cs
@@ -1,5 +1,6 @@
 using System;
 using Application;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 
@@ -24,6 +25,7 @@ namespace Api.Controllers
     [HttpGet("{id:guid}")]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
     [ProducesResponseType(StatusCodes.Status200OK)]
+    [AllowAnonymous]
     public CommentDTO Show(Guid id)
     {
       return _commentService.GetCommentById(id);
diff --git a/Apps/Api/Controllers/LinksController.cs b/Apps/Api/Controllers/LinksController.cs
index 24017fa..7e00dcc 100644
--- a/Apps/Api/Controllers/LinksController.cs
+++ b/Apps/Api/Controllers/LinksController.cs
@@ -1,5 +1,6 @@
 using System;
 using Application;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 
@@ -23,6 +24,7 @@ namespace Api.Controllers
     /// </summary>
     /// <returns></returns>
     [HttpGet]
+    [AllowAnonymous]
     public LinkDTO[] GetLatest()
     {
       return _linkService.GetAllLinks();
@@ -36,6 +38,7 @@ namespace Api.Controllers
     [HttpGet("{id:guid}")]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
     [ProducesResponseType(StatusCodes.Status200OK)]
+    [AllowAnonymous]
     public LinkDTO GetById(Guid id)
     {
       return _linkService.GetLinkById(id);
@@ -47,6 +50,7 @@ namespace Api.Controllers
     /// <param name="id"></param>
     /// <returns></returns>
     [HttpGet("{id:guid}/comments")]
+    [AllowAnonymous]
     public CommentDTO[] Comments(Guid id)
     {
       return _commentService.GetAllLinkComments(id);
diff --git a/Apps/Api/Startup.cs b/Apps/Api/Startup.cs
index cbd403a..c9a7bbd 100644
--- a/Apps/Api/Startup.cs
+++ b/Apps/Api/Startup.cs
@@ -4,28 +4,81 @@ using System.Linq;
 using System.Threading.Tasks;
 using Infrastructure;
 using Infrastructure.Filters;
+using Infrastructure.Identity;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc.Authorization;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
+using Microsoft.IdentityModel.Tokens;
 
 namespace Api
 {
   public class Startup
   {
+    public Startup(IConfiguration configuration)
+    {
+      Configuration = configuration;
+    }
+
+    public IConfiguration Configuration { get; }
+
     // This method gets called by the runtime. Use this method to add services to the container.
     // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
     public void ConfigureServices(IServiceCollection services)
     {
+      var tokenOptions = Configuration.GetSection("Token").Get<TokenOptions>();
+      services.AddSingleton(tokenOptions);
+
       // services.AddHNServicesInMemory();
       services.AddHNServicesEF();
+
+      services
+        .AddIdentityCore<User>(options =>
+        {
+          // FIXME uniquement pour nos besoins :)
+          options.Password.RequiredLength = options.Password.RequiredUniqueChars = 0;
+          options.Password.RequireDigit = options.Password.RequireLowercase = options.Password.RequireUppercase = options.Password.RequireNonAlphanumeric = false;
+        })
+        .AddRoles<Role>()
+        .AddSignInManager()
+        .AddEntityFrameworkStores<HNDbContext>();
+
+      services
+        .AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+        .AddJwtBearer(options =>
+        {
+          options.TokenValidationParameters = new TokenValidationParameters
+          {
+            ValidateIssuer = true,
+            ValidateAudience = true,
+            ValidateLifetime = true,
+            ValidateIssuerSigningKey = true,
+            ValidIssuer = tokenOptions.Issuer,
+            ValidAudience = tokenOptions.Audience,
+            IssuerSigningKey = tokenOptions.Key
+          };
+        });
+
       services.AddControllers(options =>
       {
         options.Filters.Add<CustomExceptionFilter>();
+        options.Filters.Add(new AuthorizeFilter());
       });
       services.AddOpenApiDocument(doc =>
       {
+        doc.AddSecurity("JWT", Enumerable.Empty<string>(), new NSwag.OpenApiSecurityScheme
+        {
+          Type = NSwag.OpenApiSecuritySchemeType.ApiKey,
+          Name = "Authorization",
+          In = NSwag.OpenApiSecurityApiKeyLocation.Header,
+          Description = "Jeton: Bearer {votre jeton}"
+        });
+
         doc.PostProcess = od =>
         {
           od.Info.Title = "Hacker News Clone API";
@@ -57,6 +110,9 @@ namespace Api
 
       app.UseRouting();
 
+      app.UseAuthentication();
+      app.UseAuthorization();
+
       app.UseEndpoints(endpoints =>
       {
         endpoints.MapGet("/", async context =>
diff --git a/Apps/Api/TokenOptions.cs b/Apps/Api/TokenOptions.cs
new file mode 100644
index 0000000..af30c14
--- /dev/null
+++ b/Apps/Api/TokenOptions.cs
@@ -0,0 +1,14 @@
+using System.Text;
+using Microsoft.IdentityModel.Tokens;
+
+namespace Api
+{
+  public class TokenOptions
+  {
+    public string Issuer { get; set; }
+    public string Audience { get; set; }
+    public string SecurityKey { get; set; }
+
+    public SecurityKey Key => new SymmetricSecurityKey(Encoding.UTF8.GetBytes(SecurityKey));
+  }
+}
\ No newline at end of file
diff --git a/Apps/Api/api.http b/Apps/Api/api.http
index b165482..4bdb17d 100644
--- a/Apps/Api/api.http
+++ b/Apps/Api/api.http
@@ -1,4 +1,5 @@
 @url = http://localhost:5000
+@token = Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1laWQiOiJkNzlhYzRmZS1hZTEwLTQ5NTEtODJkOS01YjRhNzk3MjNjZTgiLCJ1bmlxdWVfbmFtZSI6InRlc3QiLCJBc3BOZXQuSWRlbnRpdHkuU2VjdXJpdHlTdGFtcCI6IjNSSlRNTFhLTTU3SjJFRUxITURINUlVV1VSNVFJSE9IIiwibmJmIjoxNjE5Njk3NDA1LCJleHAiOjE2MjAzMDIyMDUsImlhdCI6MTYxOTY5NzQwNSwiaXNzIjoiaHR0cDovL2xvY2FsaG9zdCIsImF1ZCI6Imh0dHA6Ly9sb2NhbGhvc3QifQ.f-kr-35Q7h4D4KsRWj2SC2zAUJ-CD9XVAfl8ORFPXqg
 
 GET {{url}}/api/links
 
@@ -6,9 +7,10 @@ GET {{url}}/api/links
 
 POST {{url}}/api/links
 Content-Type: application/json
+Authorization: {{token}}
 
 {
-  "url": "http://google.com"
+  "url": "http://google.com/other"
 }
 
 ###
@@ -27,4 +29,30 @@ Content-Type: application/json
 
 ###
 
-GET {{url}}/api/Comments/a8b67787-9e92-4011-b0ed-3688d06043da
\ No newline at end of file
+GET {{url}}/api/Comments/a8b67787-9e92-4011-b0ed-3688d06043da
+
+###
+
+POST {{url}}/api/accounts
+Content-Type: application/json
+
+{
+  "Username": "toto",
+  "Password": "test",
+  "ConfirmPassword": "test"
+}
+
+###
+
+POST {{url}}/api/accounts/token
+Content-Type: application/json
+
+{
+  "Username": "test",
+  "Password": "test"
+}
+
+###
+
+GET {{url}}/api/accounts/me
+Authorization: {{token}}
\ No newline at end of file
diff --git a/Apps/Api/appsettings.json b/Apps/Api/appsettings.json
index 55f4a8f..f915d8b 100644
--- a/Apps/Api/appsettings.json
+++ b/Apps/Api/appsettings.json
@@ -9,5 +9,10 @@
   "ConnectionStrings": {
     "Default": "Data Source=../Website/hn.db"
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "Token": {
+    "Issuer": "http://localhost",
+    "Audience": "http://localhost",
+    "SecurityKey": "tS4wW5bA1cI5iY6j"
+  }
 }
diff --git a/Apps/Api/swagger.json b/Apps/Api/swagger.json
index 07c5ada..da3c7a6 100644
--- a/Apps/Api/swagger.json
+++ b/Apps/Api/swagger.json
@@ -6,6 +6,96 @@
     "version": "1.0.0"
   },
   "paths": {
+    "/api/accounts/me": {
+      "get": {
+        "tags": [
+          "Accounts"
+        ],
+        "operationId": "Accounts_Me",
+        "responses": {
+          "200": {
+            "description": ""
+          }
+        }
+      }
+    },
+    "/api/accounts": {
+      "post": {
+        "tags": [
+          "Accounts"
+        ],
+        "operationId": "Accounts_Register",
+        "requestBody": {
+          "x-name": "cmd",
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/RegisterViewModel"
+              }
+            }
+          },
+          "required": true,
+          "x-position": 1
+        },
+        "responses": {
+          "400": {
+            "description": "",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ProblemDetails"
+                }
+              }
+            }
+          },
+          "204": {
+            "description": ""
+          }
+        }
+      }
+    },
+    "/api/accounts/token": {
+      "post": {
+        "tags": [
+          "Accounts"
+        ],
+        "operationId": "Accounts_Login",
+        "requestBody": {
+          "x-name": "cmd",
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/LoginViewModel"
+              }
+            }
+          },
+          "required": true,
+          "x-position": 1
+        },
+        "responses": {
+          "400": {
+            "description": "",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ProblemDetails"
+                }
+              }
+            }
+          },
+          "200": {
+            "description": "",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "string"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/api/Comments/{id}": {
       "get": {
         "tags": [
@@ -269,6 +359,47 @@
           }
         }
       },
+      "RegisterViewModel": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "username",
+          "password",
+          "confirmPassword"
+        ],
+        "properties": {
+          "username": {
+            "type": "string",
+            "minLength": 1
+          },
+          "password": {
+            "type": "string",
+            "minLength": 1
+          },
+          "confirmPassword": {
+            "type": "string",
+            "minLength": 1
+          }
+        }
+      },
+      "LoginViewModel": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "username",
+          "password"
+        ],
+        "properties": {
+          "username": {
+            "type": "string",
+            "minLength": 1
+          },
+          "password": {
+            "type": "string",
+            "minLength": 1
+          }
+        }
+      },
       "CommentDTO": {
         "type": "object",
         "additionalProperties": false,
@@ -288,6 +419,10 @@
           "downvotesCount": {
             "type": "integer",
             "format": "int32"
+          },
+          "createdByUsername": {
+            "type": "string",
+            "nullable": true
           }
         }
       },
@@ -337,6 +472,10 @@
           "commentsCount": {
             "type": "integer",
             "format": "int32"
+          },
+          "createdByUsername": {
+            "type": "string",
+            "nullable": true
           }
         }
       },
@@ -354,6 +493,19 @@
           }
         }
       }
+    },
+    "securitySchemes": {
+      "JWT": {
+        "type": "apiKey",
+        "description": "Jeton: Bearer {votre jeton}",
+        "name": "Authorization",
+        "in": "header"
+      }
     }
-  }
+  },
+  "security": [
+    {
+      "JWT": []
+    }
+  ]
 }
\ No newline at end of file
diff --git a/Apps/Website/hn.db-wal b/Apps/Website/hn.db-wal
index 8878a3a..b112f61 100644
Binary files a/Apps/Website/hn.db-wal and b/Apps/Website/hn.db-wal differ