diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 48721008b..218565798 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,14 +17,8 @@ jobs:
       - name: check out the repo
         uses: actions/checkout@v2
 
-      - name: compile node.js code
-        working-directory: resources-front-end
-        run: |
-          npm install
-          npm run build
-
-      - name: compile java code
-        run: mvn clean package
+      - name: mvn compile
+        run: mvn -DskipTests clean package
 
       - name: archive artifacts
         uses: actions/upload-artifact@v2
diff --git a/src/main/java/com/webank/ai/fate/board/utils/RSAUtils.java b/src/main/java/com/webank/ai/fate/board/utils/RSAUtils.java
index 3e1c9f439..749129c7c 100644
--- a/src/main/java/com/webank/ai/fate/board/utils/RSAUtils.java
+++ b/src/main/java/com/webank/ai/fate/board/utils/RSAUtils.java
@@ -20,7 +20,7 @@ public static class RSAKeyPair {
 
     public static RSAKeyPair getKeyPair() throws Exception{
         KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
-        keyPairGen.initialize(1024, new SecureRandom());
+        keyPairGen.initialize(2048, new SecureRandom());
         KeyPair keyPair = keyPairGen.generateKeyPair();
         PrivateKey privateKey = keyPair.getPrivate();
         PublicKey publicKey = keyPair.getPublic();
diff --git a/src/main/java/com/webank/ai/fate/board/utils/StandardRSAUtils.java b/src/main/java/com/webank/ai/fate/board/utils/StandardRSAUtils.java
index 3ddde1713..e590e0c95 100644
--- a/src/main/java/com/webank/ai/fate/board/utils/StandardRSAUtils.java
+++ b/src/main/java/com/webank/ai/fate/board/utils/StandardRSAUtils.java
@@ -25,8 +25,7 @@ public class StandardRSAUtils {
     public static void getKeyPair() throws Exception {
         //KeyPairGenerator类用于生成公钥和密钥对，基于RSA算法生成对象
         KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
-        //初始化密钥对生成器，密钥大小为96-1024位
-        keyPairGen.initialize(1024, new SecureRandom());
+        keyPairGen.initialize(2048, new SecureRandom());
         //生成一个密钥对，保存在keyPair中
         KeyPair keyPair = keyPairGen.generateKeyPair();
         PrivateKey privateKey = keyPair.getPrivate();//得到私钥