diff --git a/.gitignore b/.gitignore
index 23732d0..8ff7e19 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,7 @@
 .cxx
 local.properties
 .kotlin
+
+# Signature release (ne jamais committer)
+release-key.jks
+keystore.properties
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 1802d63..8bea3d3 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,8 +1,18 @@
+import java.util.Properties
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
 }
 
+// Signature release : lue depuis keystore.properties (non versionné)
+val keystorePropertiesFile = rootProject.file("keystore.properties")
+val keystoreProperties = Properties().apply {
+    if (keystorePropertiesFile.exists()) {
+        keystorePropertiesFile.inputStream().use { load(it) }
+    }
+}
+
 android {
     namespace = "com.example.maposition"
     compileSdk {
@@ -19,6 +29,17 @@ android {
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
+    signingConfigs {
+        create("release") {
+            if (keystorePropertiesFile.exists()) {
+                storeFile = file(keystoreProperties["storeFile"] as String)
+                storePassword = keystoreProperties["storePassword"] as String
+                keyAlias = keystoreProperties["keyAlias"] as String
+                keyPassword = keystoreProperties["keyPassword"] as String
+            }
+        }
+    }
+
     buildTypes {
         release {
             isMinifyEnabled = false
@@ -26,6 +47,9 @@ android {
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
             )
+            if (keystorePropertiesFile.exists()) {
+                signingConfig = signingConfigs.getByName("release")
+            }
         }
     }
     compileOptions {
diff --git a/keystore.properties.example b/keystore.properties.example
new file mode 100644
index 0000000..0263277
--- /dev/null
+++ b/keystore.properties.example
@@ -0,0 +1,5 @@
+# Copier ce fichier en keystore.properties (non versionné) et remplir :
+storeFile=../release-key.jks
+storePassword=CHANGEZ_MOI
+keyAlias=maposition
+keyPassword=CHANGEZ_MOI