diff --git a/pom.xml b/pom.xml
index 9e8c3bc..141a1c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.2</version>
+		<version>2.7.6</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.flagnote</groupId>
@@ -25,6 +25,10 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-mongodb</artifactId>
 		</dependency>
+		<dependency>
+	      <groupId>org.springframework.boot</groupId>
+	      <artifactId>spring-boot-starter-quartz</artifactId>
+	    </dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
@@ -32,7 +36,7 @@
 		<dependency>
 			<groupId>cn.hutool</groupId>
 			<artifactId>hutool-all</artifactId>
-			<version>5.7.22</version>
+			<version>5.8.10</version>
 		</dependency>
 		<dependency>
 			<groupId>org.projectlombok</groupId>
diff --git a/src/main/java/com/flagnote/note/controller/NoteController.java b/src/main/java/com/flagnote/note/controller/NoteController.java
index f40689f..24018f6 100644
--- a/src/main/java/com/flagnote/note/controller/NoteController.java
+++ b/src/main/java/com/flagnote/note/controller/NoteController.java
@@ -40,8 +40,9 @@ public class NoteController {
 		KeyMeta c = new KeyMeta();
 		String key = BizKeyUtils.getKey();
 		c.setKey(key);
-		c.setCipher(BizKeyUtils.getCipher(key));
 		c.setServerTime(new Date().getTime());
+		c.setCipher(BizKeyUtils.getCipher(key,c.getServerTime().toString()));
+		
 		return c;
 	}
 
@@ -105,7 +106,7 @@ public class NoteController {
 
 	@RequestMapping(value = "/note/{key:[abcdefghijkmnopqrstuvwxyz23456789]{16}}", method = RequestMethod.POST, produces = MediaType.TEXT_PLAIN_VALUE, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
 	public String saveNote(@PathVariable("key") String key, @RequestPart("file") MultipartFile file,
-			@RequestParam("lock") Integer lock, @RequestParam("md5") String md5) throws IOException {
+			@RequestParam("lock") Integer lock, @RequestParam("md5") String md5,@RequestParam("initTime") String initTime) throws IOException {
 		Date pushTime = new Date();
 		
 		Note note = new Note();
@@ -113,6 +114,7 @@ public class NoteController {
 		note.setTextBytes(file.getBytes());
 		note.setLock(lock);
 		note.setMd5(md5);
+		note.setInitTime(new Date(Long.parseLong(initTime)));
 		note.setPushTime(pushTime);
 
 		noteService.saveNote(note);
diff --git a/src/main/java/com/flagnote/note/entity/Note.java b/src/main/java/com/flagnote/note/entity/Note.java
index e3c9004..09ab5a3 100644
--- a/src/main/java/com/flagnote/note/entity/Note.java
+++ b/src/main/java/com/flagnote/note/entity/Note.java
@@ -24,6 +24,8 @@ public class Note implements Serializable {
 	private String cipher;
 
 	private Integer state;
+	
+	private Date initTime;
 
 	private Date pushTime;
 
diff --git a/src/main/java/com/flagnote/note/repository/NoteMongoRepository.java b/src/main/java/com/flagnote/note/repository/NoteMongoRepository.java
index 507cbc4..29b08e3 100644
--- a/src/main/java/com/flagnote/note/repository/NoteMongoRepository.java
+++ b/src/main/java/com/flagnote/note/repository/NoteMongoRepository.java
@@ -1,11 +1,20 @@
 package com.flagnote.note.repository;
 
+import java.util.Date;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.data.mongodb.repository.Query;
 import org.springframework.stereotype.Repository;
 
 import com.flagnote.note.entity.Note;
 
 @Repository
 public interface NoteMongoRepository extends MongoRepository<Note, String> {
+	
+	
+	@Query(value = "{'state' : {'$eq' : 1},'expireTime' : {'$lt' : ?0}}")
+    public Page<Note> findExpireNote(Date date,Pageable page);
 
 }
diff --git a/src/main/java/com/flagnote/note/schedule/NoteSchedule.java b/src/main/java/com/flagnote/note/schedule/NoteSchedule.java
new file mode 100644
index 0000000..4be2755
--- /dev/null
+++ b/src/main/java/com/flagnote/note/schedule/NoteSchedule.java
@@ -0,0 +1,45 @@
+package com.flagnote.note.schedule;
+
+import java.util.Date;
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.scheduling.annotation.Scheduled;
+
+import com.flagnote.note.entity.Note;
+import com.flagnote.note.repository.NoteMongoRepository;
+
+@EnableScheduling
+@Configuration
+public class NoteSchedule {
+	
+	@Autowired
+	private NoteMongoRepository noteMongoRepository;
+
+	@Scheduled(cron = "0/10 * * * * ?")
+    public void updateExpiredNote() {
+		
+		while(true) {
+			
+			PageRequest pageRequest = PageRequest.of(0,5);
+			Page<Note> noteList = noteMongoRepository.findExpireNote(new Date(),pageRequest);
+			
+			if(noteList.getNumberOfElements()>0) {
+				for (Note note : noteList) {
+					note.setState(0);
+					note.setTextBytes(null);
+				}
+				noteMongoRepository.saveAll(noteList);
+			}else {
+				break;
+			}
+		}
+		
+    }
+}
diff --git a/src/main/java/com/flagnote/note/service/NoteServiceImpl.java b/src/main/java/com/flagnote/note/service/NoteServiceImpl.java
index 624e280..b8e625f 100644
--- a/src/main/java/com/flagnote/note/service/NoteServiceImpl.java
+++ b/src/main/java/com/flagnote/note/service/NoteServiceImpl.java
@@ -53,7 +53,7 @@ public class NoteServiceImpl implements NoteService {
 		
 		
 		note.setExpireTime(DateUtil.offsetHour(note.getPushTime(), 1));
-		note.setRetentionTime(DateUtil.offsetSecond(note.getPushTime(), 4000 * 3600));
+		note.setRetentionTime(DateUtil.offsetSecond(note.getPushTime(), 400 * 3600));
 		
 		note.setState(1);
 
diff --git a/src/main/java/com/flagnote/note/utils/BizKeyUtils.java b/src/main/java/com/flagnote/note/utils/BizKeyUtils.java
index 54ecb43..a6fb3b6 100644
--- a/src/main/java/com/flagnote/note/utils/BizKeyUtils.java
+++ b/src/main/java/com/flagnote/note/utils/BizKeyUtils.java
@@ -84,12 +84,51 @@ public class BizKeyUtils {
 		return Integer.parseInt(String.valueOf(new Date().getTime()).substring(0, 4));
 	}
 
-	public static String getCipher(String key) {
-		return md5(key + MIX_STRING + key);
+	public static String getCipher(String key,String initTime) {
+		return md5(key +"#"+ MIX_STRING + "#" + initTime);
 	}
+	
+	public static Boolean validateCipher(String key,String initTime,String cipher) {
+		return md5(key +"#"+ MIX_STRING + "#" + initTime).equals(cipher);
+	}
+	
 
 	public static String getSecretKey(String key, String password) {
 		return md5(key + md5(MIX_STRING + password));
+	}
+	
+	public static void main(String[] args) {
+		
+		int c = 0;
+		while(true) {
+			c++;
+			StringBuffer sb = new StringBuffer();
+
+			for (int i = 0; i < 16; i++) {
+				sb.append(RANGE_STRING.charAt(RandomUtils.nextInt(30)));
+			}
+			
+			Boolean result = validateKey(sb.toString());
+			
+			if(c%1000==0) {
+				System.out.println(c);			
+				System.out.println(result);
+				System.out.println(sb.toString());
+			}
+			
+			if(result) {
+				System.out.println(c);			
+				System.out.println(result);
+				System.out.println(sb.toString());
+				break;
+			}
+
+		}
+		
+		
+
+		
+		
 	}
 
 }
\ No newline at end of file
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 08013a8..c7bfdf1 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -1,5 +1,6 @@
 server:
-  port: 3333
+  address: 127.0.0.1
+  port: 20000
 spring:
   codec:
     max-in-memory-size: 128MB
@@ -13,4 +14,20 @@ spring:
       password: flagnote1qazx
       autoConnectRetry: true
       socketKeepAlive: true
-      socketTimeout: 1000
\ No newline at end of file
+      socketTimeout: 1000
+
+management:  
+#  server:
+#    address: 127.0.0.1
+#    port: 29000
+  endpoint:
+    shutdown:
+      enabled: true
+    health:
+      enabled: true
+  endpoints:
+    web:
+      base-path: /f2w8u47ie56edc93/actuator
+      exposure:
+        include: shutdown,health
+