diff --git a/platformapi/dingdingapi/callback.go b/platformapi/dingdingapi/callback.go
index f3eb4fbc..85087152 100644
--- a/platformapi/dingdingapi/callback.go
+++ b/platformapi/dingdingapi/callback.go
@@ -118,7 +118,7 @@ func (a *API) Encrypt(msg, timestamp, nonce string) (encryptedMsg, sign string,
 	//buf.WriteString(a.corpID)
 	//binResult, err := utils.AESCBCEncpryt(buf.Bytes(), []byte(aesKey), []byte(aesKey[:16]))
 	//encryptedMsg = base64.StdEncoding.EncodeToString(binResult)
-	c := NewDingTalkCrypto(a.GetCallbackToken(), string(a.GetCallbackAESKey()), a.GetAppID())
+	c := NewDingTalkCrypto(a.callbackToken, a.callbackAESKey, a.appID)
 	return c.GetEncryptMsg(msg, timestamp, nonce)
 }
 
@@ -135,7 +135,7 @@ func (a *API) Decrypt(sign, timestr, nonce, msg string) (decryptedMsg string, er
 	//		}
 	//	}
 	//}
-	c := NewDingTalkCrypto(a.GetCallbackToken(), string(a.GetCallbackAESKey()), a.GetAppID())
+	c := NewDingTalkCrypto(a.callbackToken, a.callbackAESKey, a.appID)
 	return c.GetDecryptMsg(sign, timestr, nonce, msg)
 }