diff --git a/Source/.htaccess b/Source/.htaccess
index b840088..ffd584f 100644
--- a/Source/.htaccess
+++ b/Source/.htaccess
@@ -10,4 +10,5 @@ RewriteRule ^continueResponse$ index.php?page=continueResponse [L]
 RewriteRule ^createForm$ index.php?page=createForm [L]
 RewriteRule ^addKeyword$ index.php?page=addKeyword [L]
 RewriteRule "goToAdmin" index.php?page=goToAdmin [L]
-RewriteRule ^goToAdminLogin$ index.php?page=goToAdminLogin [L]
\ No newline at end of file
+RewriteRule ^goToAdminLogin$ index.php?page=goToAdminLogin [L]
+RewriteRule ^login$ index.php?page=login [L]
\ No newline at end of file
diff --git a/Source/API/script/Gateway/GatewayAdmin.php b/Source/API/script/Gateway/GatewayAdmin.php
index a93b9be..bae26fc 100644
--- a/Source/API/script/Gateway/GatewayAdmin.php
+++ b/Source/API/script/Gateway/GatewayAdmin.php
@@ -2,7 +2,7 @@
 
 namespace API\script\Gateway;
 
-use API\script\Config\Connection;
+use Config\Connection;
 use PDO;
 
 /**
diff --git a/Source/API/script/Gateway/GatewayKeyword.php b/Source/API/script/Gateway/GatewayKeyword.php
index b68381c..4a08f44 100644
--- a/Source/API/script/Gateway/GatewayKeyword.php
+++ b/Source/API/script/Gateway/GatewayKeyword.php
@@ -2,7 +2,7 @@
 
 namespace API\script\Gateway;
 
-use API\script\Config\Connection;
+use Config\Connection;
 use PDO;
 
 /**
diff --git a/Source/API/script/Gateway/GatewayListResponseOfCandidate.php b/Source/API/script/Gateway/GatewayListResponseOfCandidate.php
index 902f792..46ffa7a 100644
--- a/Source/API/script/Gateway/GatewayListResponseOfCandidate.php
+++ b/Source/API/script/Gateway/GatewayListResponseOfCandidate.php
@@ -2,7 +2,7 @@
 
 namespace API\script\Gateway;
 
-use API\script\Config\Connection;
+use Config\Connection;
 use PDO;
 
 /**
diff --git a/Source/API/script/Gateway/GatewayPossibleResponse.php b/Source/API/script/Gateway/GatewayPossibleResponse.php
index 7f3280d..ce1cd71 100644
--- a/Source/API/script/Gateway/GatewayPossibleResponse.php
+++ b/Source/API/script/Gateway/GatewayPossibleResponse.php
@@ -2,7 +2,7 @@
 
 namespace API\script\Gateway;
 
-use API\script\Config\Connection;
+use Config\Connection;
 use PDO;
 
 /**
diff --git a/Source/API/script/Gateway/GatewayQuestion.php b/Source/API/script/Gateway/GatewayQuestion.php
index fc4e768..8d0ed0b 100644
--- a/Source/API/script/Gateway/GatewayQuestion.php
+++ b/Source/API/script/Gateway/GatewayQuestion.php
@@ -2,7 +2,7 @@
 
 namespace API\script\Gateway;
 
-use API\script\Config\Connection;
+use Config\Connection;
 use BusinessClass\BoxQuestion;
 use BusinessClass\Question;
 use BusinessClass\TextQuestion;
diff --git a/Source/API/script/Gateway/GatewayResponse.php b/Source/API/script/Gateway/GatewayResponse.php
index 114f4b0..12b28bf 100644
--- a/Source/API/script/Gateway/GatewayResponse.php
+++ b/Source/API/script/Gateway/GatewayResponse.php
@@ -2,7 +2,7 @@
 
 namespace API\script\Gateway;
 
-use API\script\Config\Connection;
+use Config\Connection;
 use PDO;
 
 /**
diff --git a/Source/Config/Validate.php b/Source/Config/Validate.php
index 87ec18f..c65e3c0 100644
--- a/Source/Config/Validate.php
+++ b/Source/Config/Validate.php
@@ -98,4 +98,10 @@ class Validate
         global $responseMaxLength;
         return (strlen($response) <= $responseMaxLength);
     }
+    public static function username(string $username): bool
+    {
+        global $usernameMaxLength;
+        return (strlen($username) >= 3 && preg_match("#[a-zA-Z0-9]+#", $username) && strlen($username) <= $usernameMaxLength);
+    }
+
 }
diff --git a/Source/Controller/ControllerCandidate.php b/Source/Controller/ControllerCandidate.php
index 52ed5f8..d0aed40 100644
--- a/Source/Controller/ControllerCandidate.php
+++ b/Source/Controller/ControllerCandidate.php
@@ -3,6 +3,7 @@
 namespace Controller;
 
 use Model\ModelCandidate;
+use Exception;
 
 /**
  * Permet de controller les réponses à fournir en fonction des actions passer dans l'URL
@@ -38,4 +39,21 @@ class ControllerCandidate
     {
         (new ModelCandidate())->submitForm();
     }
+    public function login() :void {
+        global $rep,$views;
+        try{
+        $model= new ModelCandidate();
+        $model->login();
+        if($_SESSION['role'] == "Admin") {
+            require_once($rep . $views['validLogin']);
+        }
+        else
+        {
+            require_once($rep . $views['adminLogin']);
+        }
+        } catch (Exception $e) {
+            $error = $e->getMessage();
+            require_once($rep . $views['adminLogin']);
+        }
+    }
 }
diff --git a/Source/Controller/FrontController.php b/Source/Controller/FrontController.php
index 86448a0..8c0666d 100644
--- a/Source/Controller/FrontController.php
+++ b/Source/Controller/FrontController.php
@@ -67,5 +67,6 @@ class FrontController {
         $this->router->map('POST','/addKeyword',array($controller['Admin'],'addKeyword'),'addKeyword');
         $this->router->map('GET','/goToAdmin',array($controller['Admin'],'goToAdmin'),'goToAdmin');
         $this->router->map('GET','/goToAdminLogin',array($controller['Candidate'],'goToAdminLogin'),'goToLogin');
+        $this->router->map('POST','/login',array($controller['Candidate'],'login'),'login');
     }
 }
diff --git a/Source/Exceptions/InexistantIdentifierException.php b/Source/Exceptions/InexistantIdentifierException.php
new file mode 100644
index 0000000..0f7f604
--- /dev/null
+++ b/Source/Exceptions/InexistantIdentifierException.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Exceptions;
+
+use Exception;
+
+class InexistantIdentifierException extends Exception
+{
+    public function __construct()
+    {
+        parent::__construct("Identifiant inexistant");
+    }
+}
\ No newline at end of file
diff --git a/Source/Exceptions/InvalidIdentifierOrPasswordException.php b/Source/Exceptions/InvalidIdentifierOrPasswordException.php
new file mode 100644
index 0000000..fcc8a29
--- /dev/null
+++ b/Source/Exceptions/InvalidIdentifierOrPasswordException.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Exceptions;
+
+use Exception;
+class InvalidIdentifierOrPasswordException extends Exception
+{
+    public function __construct()
+    {
+        parent::__construct("Identifiant ou mot de passe invalide");
+    }
+}
\ No newline at end of file
diff --git a/Source/Exceptions/InvalidUsernameOrPasswordException.php b/Source/Exceptions/InvalidUsernameOrPasswordException.php
new file mode 100644
index 0000000..d536f7e
--- /dev/null
+++ b/Source/Exceptions/InvalidUsernameOrPasswordException.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Exceptions;
+
+use Exception;
+
+class InvalidUsernameOrPasswordException extends Exception
+{
+    public function __construct($message = "nom d'utilisateur ou mot de passe invalide", $code = 0, Exception $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+    }
+}
\ No newline at end of file
diff --git a/Source/Model/ModelAdmin.php b/Source/Model/ModelAdmin.php
index 0a70d60..3216d17 100644
--- a/Source/Model/ModelAdmin.php
+++ b/Source/Model/ModelAdmin.php
@@ -7,6 +7,7 @@ use API\script\Gateway\GatewayKeyword;
 use API\script\Gateway\GatewayListResponseOfCandidate;
 use API\script\Gateway\GatewayQuestion;
 use BusinessClass\Form;
+use PDOException;
 
 /**
  * Permet de développer les fonctions appelées par le controllerAdmin pour gérer