diff --git a/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java b/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java
index 2bfead8d..fc624a3b 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java
@@ -11,6 +11,7 @@
 import ru.gravit.launcher.profiles.ClientProfile;
 import ru.gravit.launcher.profiles.PlayerProfile;
 import ru.gravit.launcher.request.Request;
+import ru.gravit.launcher.request.update.LegacyLauncherRequest;
 import ru.gravit.launcher.serialize.HInput;
 import ru.gravit.launcher.serialize.HOutput;
 import ru.gravit.launcher.serialize.stream.StreamObject;
@@ -34,8 +35,6 @@
 import java.nio.file.attribute.BasicFileAttributes;
 import java.nio.file.attribute.PosixFilePermission;
 import java.util.*;
-import java.util.Timer;
-import java.util.concurrent.TimeUnit;
 
 public final class ClientLauncher {
     private static Gson gson = new Gson();
@@ -300,7 +299,6 @@ private static void launch(ClientProfile profile, Params params) throws Throwabl
     public static Process launch(
             HashedDir assetHDir, HashedDir clientHDir,
             ClientProfile profile, Params params, boolean pipeOutput) throws Throwable {
-        // Write params file (instead of CLI; Mustdie32 API can't handle command line > 32767 chars)
         LogHelper.debug("Writing ClientLauncher params");
         ClientLauncherContext context = new ClientLauncherContext();
         clientStarted = false;
@@ -427,7 +425,6 @@ public static void main(String... args) throws Throwable {
         engine.runtimeProvider.init(true);
         engine.runtimeProvider.preLoad();
         LauncherGuardManager.initGuard(true);
-        // Read and delete params file
         LogHelper.debug("Reading ClientLauncher params");
         Params params;
         ClientProfile profile;
@@ -438,8 +435,6 @@ public static void main(String... args) throws Throwable {
                 try (HInput input = new HInput(socket.getInputStream())) {
                     params = new Params(input);
                     profile = gson.fromJson(input.readString(0), ClientProfile.class);
-
-                    // Read hdirs
                     assetHDir = new HashedDir(input);
                     clientHDir = new HashedDir(input);
                 }
@@ -455,8 +450,8 @@ public static void main(String... args) throws Throwable {
         Launcher.modulesManager.initModules();
         // Verify ClientLauncher sign and classpath
         LogHelper.debug("Verifying ClientLauncher sign and classpath");
-        //TODO: GO TO DIGEST
-        //SecurityHelper.verifySign(LegacyLauncherRequest.BINARY_PATH, params.launcherDigest, publicKey);
+        //Warning - experimental.
+        SecurityHelper.verifySign(LegacyLauncherRequest.BINARY_PATH, params.launcherDigest, Launcher.getConfig().publicKey);
         LinkedList<Path> classPath = resolveClassPathList(params.clientDir, profile.getClassPath());
         for (Path classpathURL : classPath) {
             LauncherAgent.addJVMClassPath(classpathURL.toAbsolutePath().toString());
diff --git a/LauncherAPI/build.gradle b/LauncherAPI/build.gradle
index 1a9366f9..95d23990 100644
--- a/LauncherAPI/build.gradle
+++ b/LauncherAPI/build.gradle
@@ -4,6 +4,7 @@
 dependencies {
 	compile project(':libLauncher')
 	compile 'org.java-websocket:Java-WebSocket:1.3.9'
+	compile 'org.apache.httpcomponents:httpclient:4.5.7'
 	compileOnly 'com.google.guava:guava:26.0-jre'
 	compile files('../compat/authlib/authlib-clean.jar')
 }