diff --git a/PeerAtCodeFramework.jar b/PeerAtCodeFramework.jar
index 2957890..58440ec 100644
Binary files a/PeerAtCodeFramework.jar and b/PeerAtCodeFramework.jar differ
diff --git a/src/dev/peerat/backend/Configuration.java b/src/dev/peerat/backend/Configuration.java
index 242e9c3..aec677a 100644
--- a/src/dev/peerat/backend/Configuration.java
+++ b/src/dev/peerat/backend/Configuration.java
@@ -41,6 +41,8 @@ public class Configuration {
 	private String mailFromAddress;	
 	
 	private String git_token;
+	
+	private String jwt_key;
 
 	private File _file;
 
@@ -207,4 +209,12 @@ public class Configuration {
 	public String getGitToken(){
 		return this.git_token;
 	}
+	
+	public String getJwtKey(){
+		return this.jwt_key;
+	}
+	
+	public void setJwtKey(String key){
+		this.jwt_key = key;
+	}
 }
\ No newline at end of file
diff --git a/src/dev/peerat/backend/Main.java b/src/dev/peerat/backend/Main.java
index e61b4f1..2ab7606 100644
--- a/src/dev/peerat/backend/Main.java
+++ b/src/dev/peerat/backend/Main.java
@@ -5,6 +5,7 @@ import static dev.peerat.framework.RequestType.OPTIONS;
 import java.lang.reflect.Method;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.regex.Matcher;
 
 import dev.peerat.backend.bonus.extract.RouteExtracter;
@@ -58,6 +59,8 @@ import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
 import dev.peerat.framework.RouteInterceptor;
 import dev.peerat.framework.Router;
+import dev.peerat.framework.utils.json.JsonMap;
+import dev.peerat.framework.utils.json.JsonParser;
 
 public class Main{
 	
@@ -72,13 +75,6 @@ public class Main{
 
 		DatabaseRepository repo = new DatabaseRepository(config);
 		Router<PeerAtUser> router = new Router<PeerAtUser>()
-				.configureJwt(
-						(builder) -> builder.setExpectedIssuer(config.getTokenIssuer()),
-						(claims) -> {
-							claims.setIssuer(config.getTokenIssuer()); // who creates the token and signs it
-							claims.setExpirationTimeMinutesInTheFuture(config.getTokenExpiration());
-						}, 
-						(claims) -> new PeerAtUser(claims))
 				.activeReOrdering().
 				addDefaultHeaders(RequestType.GET, "Access-Control-Allow-Origin: *").
 				addDefaultHeaders(RequestType.POST, "Access-Control-Allow-Origin: *").
@@ -87,6 +83,35 @@ public class Main{
 						"Access-Control-Allow-Methods: *",
 						"Access-Control-Allow-Headers: *");
 		ACCESS_ROUTER = router;
+		
+		if(config.getJwtKey() != null){
+			JsonParser parser = new JsonParser();
+			JsonMap json = parser.parse(config.getJwtKey());
+			Map<String, Object> params = new HashMap<>();
+			for(Entry<String, Object> entry : json.entries()) params.put(entry.getKey(), entry.getValue());
+			router.configureJwt(
+					(builder) -> builder.setExpectedIssuer(config.getTokenIssuer()),
+					(claims) -> {
+						claims.setIssuer(config.getTokenIssuer());
+						claims.setExpirationTimeMinutesInTheFuture(config.getTokenExpiration());
+					}, 
+					(claims) -> new PeerAtUser(claims),
+					params);
+		}else{
+			router.configureJwt(
+					(builder) -> builder.setExpectedIssuer(config.getTokenIssuer()),
+					(claims) -> {
+						claims.setIssuer(config.getTokenIssuer());
+						claims.setExpirationTimeMinutesInTheFuture(config.getTokenExpiration());
+					}, 
+					(claims) -> new PeerAtUser(claims));
+			JsonMap json = new JsonMap();
+			for(Entry<String, Object> entry : router.exportJwtKey().entrySet()){
+				json.set(entry.getKey(), entry.getValue());
+			}
+			config.setJwtKey(json.toString());
+			config.save();
+		}
 
 		router.setDefault((matcher, context, reader, writer) -> {
 			context.response(404);
diff --git a/src/dev/peerat/backend/routes/Leaderboard.java b/src/dev/peerat/backend/routes/Leaderboard.java
index 5aef25f..c78984e 100644
--- a/src/dev/peerat/backend/routes/Leaderboard.java
+++ b/src/dev/peerat/backend/routes/Leaderboard.java
@@ -65,7 +65,7 @@ public class Leaderboard implements Response {
 			}
 		}
 		leaderboardJSON.set("groups", groupsJSON);
-		writer.write(leaderboardJSON.toString().replace("\\", ""));
+		writer.write(leaderboardJSON.toString());
 	}
 
 	public final void playersLeaderboard(HttpWriter writer) throws IOException {
@@ -86,6 +86,6 @@ public class Leaderboard implements Response {
 				playersJSON.add(playerJSON);
 			}
 		}
-		writer.write(playersJSON.toString().replace("\\", ""));
+		writer.write(playersJSON.toString());
 	}
 }