diff --git a/chsm-common/src/main/java/com/sunyard/chsm/sdf/BCSdfApiService.java b/chsm-common/src/main/java/com/sunyard/chsm/sdf/BCSdfApiService.java
index 6e9cc2f..7520fc1 100644
--- a/chsm-common/src/main/java/com/sunyard/chsm/sdf/BCSdfApiService.java
+++ b/chsm-common/src/main/java/com/sunyard/chsm/sdf/BCSdfApiService.java
@@ -71,12 +71,12 @@ public class BCSdfApiService implements SdfApiService {
     }
 
     @Override
-    public byte[] encryptByMK(byte[] data) {
+    public byte[] encryptByTMK(byte[] data) {
         return data;
     }
 
     @Override
-    public byte[] decryptByMK(byte[] data) {
+    public byte[] decryptByTMK(byte[] data) {
         return data;
     }
 
diff --git a/chsm-common/src/main/java/com/sunyard/chsm/sdf/SdfApiService.java b/chsm-common/src/main/java/com/sunyard/chsm/sdf/SdfApiService.java
index c5eb725..e151c4b 100644
--- a/chsm-common/src/main/java/com/sunyard/chsm/sdf/SdfApiService.java
+++ b/chsm-common/src/main/java/com/sunyard/chsm/sdf/SdfApiService.java
@@ -45,7 +45,7 @@ public interface SdfApiService {
      */
     byte[] hash(byte[] pucData);
 
-    byte[] encryptByMK(byte[] data);
+    byte[] encryptByTMK(byte[] data);
 
-    byte[] decryptByMK(byte[] data);
+    byte[] decryptByTMK(byte[] data);
 }
diff --git a/chsm-web-manage/src/main/java/com/sunyard/chsm/service/impl/KeyInfoServiceImpl.java b/chsm-web-manage/src/main/java/com/sunyard/chsm/service/impl/KeyInfoServiceImpl.java
index 81613a1..1ad88d9 100644
--- a/chsm-web-manage/src/main/java/com/sunyard/chsm/service/impl/KeyInfoServiceImpl.java
+++ b/chsm-web-manage/src/main/java/com/sunyard/chsm/service/impl/KeyInfoServiceImpl.java
@@ -278,14 +278,14 @@ public class KeyInfoServiceImpl implements KeyInfoService {
 
         if (KeyCategory.SYM_KEY.getCode().equals(info.getKeyType())) {
             byte[] symKey = sdfApiService.generateRandom(16);
-            byte[] encSymKey = sdfApiService.encryptByMK(symKey);
+            byte[] encSymKey = sdfApiService.encryptByTMK(symKey);
             record.setKeyData(Hex.toHexString(encSymKey));
             String checkHash = Hex.toHexString(sdfApiService.hash(symKey));
             record.setCheckValue(checkHash);
         } else {
             EccKey eccKey = sdfApiService.genKeyPairEcc();
             byte[] d = eccKey.getPriKey().getD();
-            byte[] encD = sdfApiService.encryptByMK(d);
+            byte[] encD = sdfApiService.encryptByTMK(d);
             record.setKeyData(Hex.toHexString(encD));
             String checkHash = Hex.toHexString(sdfApiService.hash(d));
             record.setCheckValue(checkHash);
@@ -392,7 +392,7 @@ public class KeyInfoServiceImpl implements KeyInfoService {
         byte[] y = Arrays.copyOfRange(xy, 32, 64);
         ECPublicKeyParameters pubKeyParam = BCECUtils.createECPublicKeyParameters(x, y);
 
-        byte[] priKeyBytes = sdfApiService.decryptByMK(Hex.decode(record.getKeyData()));
+        byte[] priKeyBytes = sdfApiService.decryptByTMK(Hex.decode(record.getKeyData()));
 //        byte[][] pri18 = LangUtils.splitAverage(priKeyBytes);
         ECPrivateKeyParameters priKeyParam = BCECUtils.createECPrivateKeyParameters(priKeyBytes);
         ECDomainParameters domainParams = priKeyParam.getParameters();