diff --git a/src/main/java/com/genersoft/iot/vmp/conf/redis/RedisRpcConfig.java b/src/main/java/com/genersoft/iot/vmp/conf/redis/RedisRpcConfig.java
index b762838c..ce28a35f 100644
--- a/src/main/java/com/genersoft/iot/vmp/conf/redis/RedisRpcConfig.java
+++ b/src/main/java/com/genersoft/iot/vmp/conf/redis/RedisRpcConfig.java
@@ -7,6 +7,7 @@ import com.genersoft.iot.vmp.conf.redis.bean.RedisRpcMessage;
 import com.genersoft.iot.vmp.conf.redis.bean.RedisRpcRequest;
 import com.genersoft.iot.vmp.conf.redis.bean.RedisRpcResponse;
 import com.genersoft.iot.vmp.service.redisMsg.control.RedisRpcController;
+import java.security.SecureRandom;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
@@ -31,7 +32,7 @@ public class RedisRpcConfig implements MessageListener {
 
     public final static String REDIS_REQUEST_CHANNEL_KEY = "WVP_REDIS_REQUEST_CHANNEL_KEY";
 
-    private final Random random = new Random();
+    private final Random random = new SecureRandom();
 
     @Autowired
     private UserSetting userSetting;
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/auth/DigestServerAuthenticationHelper.java b/src/main/java/com/genersoft/iot/vmp/gb28181/auth/DigestServerAuthenticationHelper.java
index 2de1e913..9e451f86 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/auth/DigestServerAuthenticationHelper.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/auth/DigestServerAuthenticationHelper.java
@@ -26,6 +26,7 @@
 package com.genersoft.iot.vmp.gb28181.auth;
 
 import gov.nist.core.InternalErrorHandler;
+import java.security.SecureRandom;
 import lombok.extern.slf4j.Slf4j;
 
 import javax.sip.address.URI;
@@ -83,7 +84,7 @@ public class DigestServerAuthenticationHelper  {
      */
     private String generateNonce() {
         long time = Instant.now().toEpochMilli();
-        Random rand = new Random();
+        Random rand = new SecureRandom();
         long pad = rand.nextLong();
         String nonceString = Long.valueOf(time).toString()
                 + Long.valueOf(pad).toString();
diff --git a/src/main/java/com/genersoft/iot/vmp/jt1078/cmd/JT1078Template.java b/src/main/java/com/genersoft/iot/vmp/jt1078/cmd/JT1078Template.java
index c55c6276..cee48264 100644
--- a/src/main/java/com/genersoft/iot/vmp/jt1078/cmd/JT1078Template.java
+++ b/src/main/java/com/genersoft/iot/vmp/jt1078/cmd/JT1078Template.java
@@ -3,6 +3,7 @@ package com.genersoft.iot.vmp.jt1078.cmd;
 import com.genersoft.iot.vmp.jt1078.proc.entity.Cmd;
 import com.genersoft.iot.vmp.jt1078.proc.response.*;
 import com.genersoft.iot.vmp.jt1078.session.SessionManager;
+import java.security.SecureRandom;
 
 import java.util.Random;
 
@@ -13,7 +14,7 @@ import java.util.Random;
  */
 public class JT1078Template {
 
-    private final Random random = new Random();
+    private final Random random = new SecureRandom();
 
     private static final String H9101 = "9101";
     private static final String H9102 = "9102";