diff --git a/pom.xml b/pom.xml
index d221a81..c5c8dac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -79,17 +79,13 @@
             <artifactId>spring-boot-starter-webmvc-test</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-actuator</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>
         </dependency>
         <dependency>
-            <groupId>jakarta.validation</groupId>
-            <artifactId>jakarta.validation-api</artifactId>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-validation</artifactId>
         </dependency>
 
     </dependencies>
diff --git a/src/main/java/local/epul4a/fotosharing/controller/AuthController.java b/src/main/java/local/epul4a/fotosharing/controller/AuthController.java
index bacef49..00052f1 100644
--- a/src/main/java/local/epul4a/fotosharing/controller/AuthController.java
+++ b/src/main/java/local/epul4a/fotosharing/controller/AuthController.java
@@ -2,6 +2,7 @@ package local.epul4a.fotosharing.controller;
 
 import local.epul4a.fotosharing.model.Utilisateur;
 import local.epul4a.fotosharing.repository.UtilisateurRepository;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
@@ -13,7 +14,9 @@ import jakarta.validation.Valid;
 @Controller
 public class AuthController {
 
+    @Autowired
     private final UtilisateurRepository utilisateurRepository;
+    @Autowired
     private final PasswordEncoder passwordEncoder;
 
     public AuthController(UtilisateurRepository utilisateurRepository, PasswordEncoder passwordEncoder) {
@@ -37,21 +40,19 @@ public class AuthController {
     }
 
     @PostMapping("/register")
-    public String doRegister(@ModelAttribute("utilisateur") @Valid Utilisateur utilisateur,
-                             BindingResult bindingResult, Model model) {
-        if (bindingResult.hasErrors()) {
-            return "register";
-        }
-
+    public String register(@ModelAttribute Utilisateur utilisateur, Model model) {
+        // Vérifier si l'email existe déjà
         if (utilisateurRepository.findByEmail(utilisateur.getEmail()).isPresent()) {
-            model.addAttribute("error", "Email déjà utilisé");
+            model.addAttribute("error", "Cet email est déjà utilisé");
             return "register";
         }
 
-        // encoder le mot de passe puis sauvegarder
+        // CRUCIAL : Encoder le mot de passe avant de sauvegarder
         utilisateur.setMotDePasse(passwordEncoder.encode(utilisateur.getMotDePasse()));
         utilisateur.setActif(true);
+
         utilisateurRepository.save(utilisateur);
+
         return "redirect:/login?registered";
     }
 }
\ No newline at end of file
diff --git a/src/main/java/local/epul4a/fotosharing/security/CustomUserDetailsService.java b/src/main/java/local/epul4a/fotosharing/security/CustomUserDetailsService.java
index 77cb8f8..0f66256 100644
--- a/src/main/java/local/epul4a/fotosharing/security/CustomUserDetailsService.java
+++ b/src/main/java/local/epul4a/fotosharing/security/CustomUserDetailsService.java
@@ -2,6 +2,9 @@ package local.epul4a.fotosharing.security;
 
 import local.epul4a.fotosharing.model.Utilisateur;
 import local.epul4a.fotosharing.repository.UtilisateurRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.userdetails.User;
+import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.stereotype.Service;
@@ -9,16 +12,19 @@ import org.springframework.stereotype.Service;
 @Service
 public class CustomUserDetailsService implements UserDetailsService {
 
-    private final UtilisateurRepository utilisateurRepository;
-
-    public CustomUserDetailsService(UtilisateurRepository utilisateurRepository) {
-        this.utilisateurRepository = utilisateurRepository;
-    }
+    @Autowired
+    private UtilisateurRepository utilisateurRepository;
 
     @Override
-    public CustomUserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
-        Utilisateur u = utilisateurRepository.findByEmail(username)
-                .orElseThrow(() -> new UsernameNotFoundException("Utilisateur introuvable: " + username));
-        return new CustomUserDetails(u);
+    public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
+        Utilisateur utilisateur = utilisateurRepository.findByEmail(email)
+                .orElseThrow(() -> new UsernameNotFoundException("Utilisateur non trouvé : " + email));
+
+        return User.builder()
+                .username(utilisateur.getEmail())
+                .password(utilisateur.getMotDePasse()) // Le hash BCrypt depuis la BD
+                .disabled(!utilisateur.isActif())
+                .authorities("USER")
+                .build();
     }
 }
\ No newline at end of file
diff --git a/src/main/java/local/epul4a/fotosharing/security/SecurityConfig.java b/src/main/java/local/epul4a/fotosharing/security/SecurityConfig.java
index 254b9db..0cefae8 100644
--- a/src/main/java/local/epul4a/fotosharing/security/SecurityConfig.java
+++ b/src/main/java/local/epul4a/fotosharing/security/SecurityConfig.java
@@ -1,63 +1,59 @@
 package local.epul4a.fotosharing.security;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.authentication.AuthenticationManager;
-import org.springframework.security.config.Customizer;
+import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
 import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
 import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 
+import java.io.DataOutput;
+
 @Configuration
 @EnableMethodSecurity
+@EnableWebSecurity
 public class SecurityConfig {
 
-    private final CustomUserDetailsService customUserDetailsService;
-
-    public SecurityConfig(CustomUserDetailsService customUserDetailsService) {
-        this.customUserDetailsService = customUserDetailsService;
-    }
-
-    @Bean
-    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
-
-        http
-                .authorizeHttpRequests(auth -> auth
-                        .requestMatchers("/login", "/register", "/css/**", "/js/**").permitAll()
-                        .anyRequest().authenticated()
-                )
-                .formLogin(form -> form
-                        .loginPage("/login")
-                        .defaultSuccessUrl("/", true)
-                        .permitAll()
-                )
-                .logout(logout -> logout
-                        .logoutSuccessUrl("/login?logout=true")
-                        .permitAll()
-                )
-                .csrf(csrf -> csrf.disable());
-
-        return http.build();
-    }
-
-    @Bean
-    public UserDetailsService userDetailsService() {
-        // Spring Security 6.2 utilise ce bean automatiquement
-        return customUserDetailsService;
-    }
-
-    @Bean
-    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception {
-        // Spring Boot crée automatiquement un DaoAuthenticationProvider interne
-        return config.getAuthenticationManager();
-    }
+    @Autowired
+    private CustomUserDetailsService customUserDetailsService;
 
     @Bean
     public PasswordEncoder passwordEncoder() {
         return new BCryptPasswordEncoder();
     }
+
+    @Bean
+    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception {
+        return config.getAuthenticationManager();
+    }
+
+    @Bean
+    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
+        http
+                .userDetailsService(customUserDetailsService) // Utiliser directement le UserDetailsService
+                .authorizeHttpRequests(auth -> auth
+                        .requestMatchers("/register", "/login", "/css/**", "/js/**").permitAll()
+                        .anyRequest().authenticated()
+                )
+                .formLogin(form -> form
+                        .loginPage("/login")
+                        .defaultSuccessUrl("/", true)
+                        .failureUrl("/login?error=true")
+                        .permitAll()
+                )
+                .logout(logout -> logout
+                        .logoutSuccessUrl("/login?logout")
+                        .permitAll()
+                );
+
+        return http.build();
+    }
 }
+
diff --git a/target/classes/local/epul4a/fotosharing/controller/AuthController.class b/target/classes/local/epul4a/fotosharing/controller/AuthController.class
index 97793d6..c59934b 100644
Binary files a/target/classes/local/epul4a/fotosharing/controller/AuthController.class and b/target/classes/local/epul4a/fotosharing/controller/AuthController.class differ
diff --git a/target/classes/local/epul4a/fotosharing/security/CustomUserDetailsService.class b/target/classes/local/epul4a/fotosharing/security/CustomUserDetailsService.class
index b9e9184..6cbfc95 100644
Binary files a/target/classes/local/epul4a/fotosharing/security/CustomUserDetailsService.class and b/target/classes/local/epul4a/fotosharing/security/CustomUserDetailsService.class differ
diff --git a/target/classes/local/epul4a/fotosharing/security/SecurityConfig.class b/target/classes/local/epul4a/fotosharing/security/SecurityConfig.class
index 1bdaef2..410a6e2 100644
Binary files a/target/classes/local/epul4a/fotosharing/security/SecurityConfig.class and b/target/classes/local/epul4a/fotosharing/security/SecurityConfig.class differ