diff --git a/app/build.gradle b/app/build.gradle
index bce6bb7..9d2b21b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,6 +1,34 @@
+// Load a specific properties file to access the keystore if exists
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file("keystore.properties")
+
+if (keystorePropertiesFile.exists() ) {
+    // Load keystore properties from file
+    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+} else {
+    // Load keystore properties from environment
+    def env = System.getenv()
+    if (env['ANDROID_KEYALIAS']) keystoreProperties.put('keyAlias', env['ANDROID_KEYALIAS'])
+    else keystoreProperties.put('keyAlias', "dappre")
+    if (env['ANDROID_KEYPASSWORD']) keystoreProperties.put('keyPassword', env['ANDROID_KEYPASSWORD'])
+    else keystoreProperties.put('keyPassword', "dappre")
+    if (env['ANDROID_STOREFILE']) keystoreProperties.put('storeFile', env['ANDROID_STOREFILE'])
+    else keystoreProperties.put('storeFile', "./certificate/dappre.jks")
+    if (env['ANDROID_STOREPASSWORD']) keystoreProperties.put('storePassword', env['ANDROID_STOREPASSWORD'])
+    else keystoreProperties.put('storePassword', "dappre")
+}
+
 apply plugin: 'com.android.application'
 
 android {
+    signingConfigs {
+        release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile file(keystoreProperties['storeFile'])
+            storePassword keystoreProperties['storePassword']
+        }
+    }
     compileSdkVersion 23
     buildToolsVersion "23.0.3"
     defaultConfig {
@@ -12,6 +40,7 @@
     }
     buildTypes {
         release {
+            signingConfig signingConfigs.release
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }