diff --git a/include/libs/wal/wal.h b/include/libs/wal/wal.h
index e5631cb749..25566d5acb 100644
--- a/include/libs/wal/wal.h
+++ b/include/libs/wal/wal.h
@@ -58,7 +58,7 @@ typedef struct {
   int64_t  segSize;
   EWalType level;  // wal level
   int32_t  encryptAlgorithm;
-  char     encryptKey[17];
+  char     encryptKey[ENCRYPT_KEY_LEN + 1];
 } SWalCfg;
 
 typedef struct {
diff --git a/source/dnode/mgmt/exe/dmMain.c b/source/dnode/mgmt/exe/dmMain.c
index 76dd0d4e48..3526b7daab 100644
--- a/source/dnode/mgmt/exe/dmMain.c
+++ b/source/dnode/mgmt/exe/dmMain.c
@@ -376,13 +376,13 @@ int mainWindows(int argc, char **argv) {
       dError("failed to generate encrypt code since taosd is running, please stop it first");
       return -1;
     }
-    int ret = updateEncryptKey(global.encryptKey);
+    int ret = dmUpdateEncryptKey(global.encryptKey);
     taosCloseLog();
     taosCleanupArgs();
     return ret;
   }
 
-  if(getEncryptKey() != 0){
+  if(dmGetEncryptKey() != 0){
     dError("failed to start since failed to get encrypt key");
     taosCloseLog();
     taosCleanupArgs();
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c b/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
index a7c64e2fb9..f576ee334a 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
@@ -233,7 +233,7 @@ int32_t dmProcessCreateEncryptKeyReq(SDnodeMgmt *pMgmt, SRpcMsg *pMsg) {
     goto _exit;
   }
 
-  code = updateEncryptKey(cfgReq.value);
+  code = dmUpdateEncryptKey(cfgReq.value);
   if(code == 0) {
     tsEncryptionKeyChksum = taosCalcChecksum(0, cfgReq.value, strlen(cfgReq.value));
     tsEncryptionKeyStat = ENCRYPT_KEY_STAT_LOADED;
diff --git a/source/dnode/mgmt/node_util/inc/dmUtil.h b/source/dnode/mgmt/node_util/inc/dmUtil.h
index 46a13b8715..0344ca685d 100644
--- a/source/dnode/mgmt/node_util/inc/dmUtil.h
+++ b/source/dnode/mgmt/node_util/inc/dmUtil.h
@@ -193,8 +193,8 @@ void    dmSetMnodeEpSet(SDnodeData *pData, SEpSet *pEpSet);
 bool    dmUpdateDnodeInfo(void *pData, int32_t *dnodeId, int64_t *clusterId, char *fqdn, uint16_t *port);
 void    dmRemoveDnodePairs(SDnodeData *pData);
 void    dmGetDnodeEp(void *pData, int32_t dnodeId, char *pEp, char *pFqdn, uint16_t *pPort);
-int32_t updateEncryptKey(char *key);
-int32_t getEncryptKey();
+int32_t dmUpdateEncryptKey(char *key);
+int32_t dmGetEncryptKey();
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/mgmt/node_util/src/dmFile.c b/source/dnode/mgmt/node_util/src/dmFile.c
index aae80c77a9..2e8ea38c2d 100644
--- a/source/dnode/mgmt/node_util/src/dmFile.c
+++ b/source/dnode/mgmt/node_util/src/dmFile.c
@@ -21,7 +21,7 @@
 #include "tchecksum.h"
 
 #define MAXLEN 1024
-#define DM_KEY_INDICATOR "this indicator!"
+#define DM_KEY_INDICATOR      "this indicator!"
 #define DM_ENCRYPT_CODE_FILE  "encryptCode.cfg"
 #define DM_CHECK_CODE_FILE    "checkCode.bin"
 
@@ -186,7 +186,7 @@ TdFilePtr dmCheckRunning(const char *dataDir) {
 
 extern int32_t generateEncryptCode(const char *key, const char *machineId, char **encryptCode);
 
-static int32_t writeCheckCode(char* file, char* realfile, char* key){
+static int32_t dmWriteCheckCodeFile(char* file, char* realfile, char* key){
   TdFilePtr pFile = NULL;
   char     *result = NULL;
   int32_t   code = -1;
@@ -220,7 +220,7 @@ _OVER:
   return code;
 }
 
-static int32_t writeEncryptCode(char* file, char* realfile, char* encryptCode){
+static int32_t dmWriteEncryptCodeFile(char* file, char* realfile, char* encryptCode){
   TdFilePtr pFile = NULL;
   int32_t   code = -1;
 
@@ -243,7 +243,7 @@ _OVER:
   return code;
 }
 
-static int32_t compareCheckCode(char* file, char* key){
+static int32_t dmCompareEncryptKey(char* file, char* key){
   char     *content = NULL;
   int64_t   size = 0;
   TdFilePtr pFile = NULL;
@@ -304,7 +304,7 @@ _OVER:
   return code;
 }
 
-int32_t updateEncryptKey(char *key) {
+int32_t dmUpdateEncryptKey(char *key) {
   int32_t code = -1;
   char   *machineId = NULL;
   char   *encryptCode = NULL;
@@ -332,7 +332,7 @@ int32_t updateEncryptKey(char *key) {
   }
 
   if(taosCheckExistFile(realCheckFile)){
-    if(compareCheckCode(realCheckFile, key) != 0){
+    if(dmCompareEncryptKey(realCheckFile, key) != 0){
       goto _OVER;
     }
   }
@@ -346,11 +346,11 @@ int32_t updateEncryptKey(char *key) {
     goto _OVER;
   }
 
-  if(writeEncryptCode(encryptFile, realEncryptFile, encryptCode) != 0){
+  if(dmWriteEncryptCodeFile(encryptFile, realEncryptFile, encryptCode) != 0){
     goto _OVER;
   }
 
-  if(writeCheckCode(checkFile, realCheckFile, key) != 0){
+  if(dmWriteCheckCodeFile(checkFile, realCheckFile, key) != 0){
     goto _OVER;
   }
 
@@ -367,7 +367,7 @@ _OVER:
 
 extern int32_t checkAndGetCryptKey(const char *encryptCode, const char *machineId, char **key);
 
-static int32_t readEncryptCode(char* file, char** output){
+static int32_t dmReadEncryptCodeFile(char* file, char** output){
   TdFilePtr pFile = NULL;
   int32_t   code = -1;
   char     *content = NULL;
@@ -410,7 +410,7 @@ _OVER:
   return code;
 }
 
-int32_t getEncryptKey(){
+int32_t dmGetEncryptKey(){
   int32_t   code = -1;
   char      encryptFile[PATH_MAX] = {0};
   char      checkFile[PATH_MAX] = {0};
@@ -426,7 +426,7 @@ int32_t getEncryptKey(){
     return 0;
   }
 
-  if(readEncryptCode(encryptFile, &content) != 0){
+  if(dmReadEncryptCodeFile(encryptFile, &content) != 0){
     goto _OVER;
   }
 
@@ -448,7 +448,7 @@ int32_t getEncryptKey(){
     goto _OVER;
   }
 
-  if(compareCheckCode(checkFile, encryptKey) != 0){
+  if(dmCompareEncryptKey(checkFile, encryptKey) != 0){
     goto _OVER;
   }
 
diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index 6dd4955353..d6a279922c 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -304,7 +304,6 @@ struct SVnodeCfg {
   int8_t      isRsma;
   int8_t      hashMethod;
   int8_t      standby;
-  int8_t      encryptAlgorithm;
   STsdbCfg    tsdbCfg;
   SWalCfg     walCfg;
   SSyncCfg    syncCfg;
diff --git a/source/libs/sm4/src/sm4.c b/source/libs/sm4/src/sm4.c
index 91dacc10b0..0a50c9f18d 100644
--- a/source/libs/sm4/src/sm4.c
+++ b/source/libs/sm4/src/sm4.c
@@ -395,6 +395,7 @@ void SMS4_CBC_DecryptionEx(unsigned char ciphertext[16], unsigned int key[32], u
     }
 }
 
+/*
 int SM4_ECB_Encrypt( unsigned char *pKey, 
                       unsigned int KeyLen, 
                       unsigned char *pInData,
@@ -461,7 +462,7 @@ int SM4_ECB_Decrypt(  unsigned char *pKey,
     *pOutDataLen = inDataLen;
     return 0;
 }
-
+*/
 int SM4_CBC_Encrypt( unsigned char *pKey, 
                      unsigned int KeyLen,
                      unsigned char *pIV, 
diff --git a/source/libs/tdb/src/inc/tdbInt.h b/source/libs/tdb/src/inc/tdbInt.h
index 13b091ea46..b3351cf787 100644
--- a/source/libs/tdb/src/inc/tdbInt.h
+++ b/source/libs/tdb/src/inc/tdbInt.h
@@ -394,7 +394,7 @@ struct STDB {
 #endif
   int64_t txnId;
   int32_t encryptAlgorithm;
-  char    encryptKey[ENCRYPT_KEY_LEN];
+  char    encryptKey[ENCRYPT_KEY_LEN + 1];
 };
 
 struct SPager {