diff --git a/utils/utils_crypt.go b/utils/utils_crypt.go
index 4e3aff7d..bf1ee694 100644
--- a/utils/utils_crypt.go
+++ b/utils/utils_crypt.go
@@ -4,6 +4,8 @@ import (
 	"bytes"
 	"crypto/aes"
 	"crypto/cipher"
+
+	"git.rosy.net.cn/baseapi"
 )
 
 func AESCBCEncpryt(data, aesKey, iv []byte) (encryptedData []byte, err error) {
@@ -33,6 +35,7 @@ func AESCBCDecpryt(encryptedData, aesKey, iv []byte) (decryptedData []byte, err
 func PKCSUnPadding(origData []byte) []byte {
 	length := len(origData)
 	unpadding := int(origData[length-1])
+	baseapi.SugarLogger.Debug("PKCSUnPadding length:%d, unpadding:%d", length, unpadding)
 	return origData[:(length - unpadding)]
 }