diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..04d9892
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,24 @@
+apply plugin: 'java'
+apply from: 'dependencies.gradle'
+
+allprojects {
+    repositories {
+        mavenCentral()
+    }
+
+    plugins.withType(JavaPlugin) {
+        dependencies {
+            implementation global_libs.annotations
+            testImplementation global_libs.junit
+        }
+    }
+}
+
+tasks.named('wrapper') {
+    distributionType = Wrapper.DistributionType.ALL
+}
+
+// gradlew allDeps 
+subprojects {
+    task allDeps(type: DependencyReportTask) {}
+}
\ No newline at end of file
diff --git a/dependencies.gradle b/dependencies.gradle
new file mode 100644
index 0000000..447833b
--- /dev/null
+++ b/dependencies.gradle
@@ -0,0 +1,9 @@
+ext {
+  global_libs = [
+          junit          : "junit:junit:4.13.2",
+          annotations    : "org.jetbrains:annotations:16.0.1",
+          jsr305         : "com.google.code.findbugs:jsr305:3.0.2",
+          mockito        : "org.mockito:mockito-all:1.10.19",
+          jcip           : 'net.jcip:jcip-annotations:1.0',
+  ]
+}
\ No newline at end of file
diff --git a/src/test/java/com/rusefi/uds/SecurityTest.java b/src/test/java/com/rusefi/uds/SecurityTest.java
new file mode 100644
index 0000000..2cc7c0a
--- /dev/null
+++ b/src/test/java/com/rusefi/uds/SecurityTest.java
@@ -0,0 +1,10 @@
+package com.rusefi.uds;
+
+import org.junit.Test;
+
+public class SecurityTest {
+    @Test
+    public void testCalcKey() {
+
+    }
+}