diff --git a/src/frp/utils/conn/conn.go b/src/frp/utils/conn/conn.go
index a7df146..eb064c4 100644
--- a/src/frp/utils/conn/conn.go
+++ b/src/frp/utils/conn/conn.go
@@ -209,7 +209,7 @@ func PipeDecrypt(r net.Conn, w net.Conn, key string) error {
 			return err
 		}
 
-		res, err := laes.Decrypto(buf)
+		res, err := laes.Decrypt(buf)
 		if err != nil {
 			log.Error("Decrypt [%s] error, %v", string(buf), err)
 			return fmt.Errorf("Decrypt [%s] error: %v", string(buf), err)
@@ -239,7 +239,7 @@ func PipeEncrypt(r net.Conn, w net.Conn, key string) error {
 		if err != nil {
 			return err
 		}
-		res, err := laes.Encrypto(buf[:n])
+		res, err := laes.Encrypt(buf[:n])
 		if err != nil {
 			log.Error("Encrypt error: %v", err)
 			return fmt.Errorf("Encrypt error: %v", err)
diff --git a/src/frp/utils/pcrypto/pcrypto.go b/src/frp/utils/pcrypto/pcrypto.go
index 308a41f..ebddfac 100644
--- a/src/frp/utils/pcrypto/pcrypto.go
+++ b/src/frp/utils/pcrypto/pcrypto.go
@@ -1,3 +1,17 @@
+// Copyright 2016 fatedier, fatedier@gmail.com
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package pcrypto
 
 import (
@@ -25,7 +39,7 @@ func (pc *Pcrypto) Init(key []byte) error {
 	return err
 }
 
-func (pc *Pcrypto) Encrypto(src []byte) ([]byte, error) {
+func (pc *Pcrypto) Encrypt(src []byte) ([]byte, error) {
 	// gzip
 	var zbuf bytes.Buffer
 	zwr, err := gzip.NewWriterLevel(&zbuf, -1)
@@ -49,7 +63,7 @@ func (pc *Pcrypto) Encrypto(src []byte) ([]byte, error) {
 	return []byte(base64.StdEncoding.EncodeToString(crypted)), nil
 }
 
-func (pc *Pcrypto) Decrypto(str []byte) ([]byte, error) {
+func (pc *Pcrypto) Decrypt(str []byte) ([]byte, error) {
 	// base64
 	data, err := base64.StdEncoding.DecodeString(string(str))
 	if err != nil {