diff --git a/cmd/pack.go b/cmd/pack.go
index d690743af1..078c31cbef 100644
--- a/cmd/pack.go
+++ b/cmd/pack.go
@@ -11,9 +11,12 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/yaoapp/gou/application/yaz"
 	"github.com/yaoapp/yao/config"
+	"github.com/yaoapp/yao/pack"
 )
 
 var packOutput = ""
+var packLicense = ""
+
 var packCmd = &cobra.Command{
 	Use:   "pack",
 	Short: L("Package the application"),
@@ -65,7 +68,14 @@ var packCmd = &cobra.Command{
 		}
 
 		os.Remove(outputFile)
-		err = yaz.CompressTo(cfg.Root, outputFile)
+		if packLicense != "" {
+			pack.SetCipher(packLicense)
+			err = yaz.PackTo(cfg.Root, outputFile, pack.Cipher)
+
+		} else {
+			err = yaz.CompressTo(cfg.Root, outputFile)
+		}
+
 		if err != nil {
 			color.Red(err.Error())
 			os.Exit(1)
@@ -77,4 +87,5 @@ var packCmd = &cobra.Command{
 
 func init() {
 	packCmd.PersistentFlags().StringVarP(&packOutput, "output", "o", "", L("Output Directory"))
+	packCmd.PersistentFlags().StringVarP(&packLicense, "license", "l", "", L("Pack with the license"))
 }
diff --git a/cmd/root.go b/cmd/root.go
index 8ba4fb93f9..d8f6f02c35 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -9,12 +9,13 @@ import (
 	"github.com/yaoapp/kun/exception"
 	"github.com/yaoapp/yao/cmd/studio"
 	"github.com/yaoapp/yao/config"
+	"github.com/yaoapp/yao/pack"
 	"github.com/yaoapp/yao/share"
 )
 
 var appPath string
-var envFile string
 var yazFile string
+var licenseKey string
 
 var lang = os.Getenv("YAO_LANG")
 var langs = map[string]string{
@@ -130,7 +131,7 @@ func init() {
 	// rootCmd.SetHelpCommand(helpCmd)
 	rootCmd.PersistentFlags().StringVarP(&appPath, "app", "a", "", L("Application directory"))
 	rootCmd.PersistentFlags().StringVarP(&yazFile, "file", "f", "", L("Application package file"))
-	rootCmd.PersistentFlags().StringVarP(&envFile, "env", "e", "", L("Environment file"))
+	rootCmd.PersistentFlags().StringVarP(&licenseKey, "key", "k", "", L("Application license key"))
 }
 
 // Execute 运行Root
@@ -153,11 +154,7 @@ func Boot() {
 		root = r
 	}
 
-	if envFile != "" {
-		config.Conf = config.LoadFrom(envFile)
-	} else {
-		config.Conf = config.LoadFrom(filepath.Join(root, ".env"))
-	}
+	config.Conf = config.LoadFrom(filepath.Join(root, ".env"))
 
 	if yazFile != "" {
 		config.Conf.AppSource = yazFile
@@ -168,4 +165,9 @@ func Boot() {
 	} else if config.Conf.Mode == "development" {
 		config.Development()
 	}
+
+	// set license
+	if licenseKey != "" {
+		pack.SetCipher(licenseKey)
+	}
 }
diff --git a/engine/load.go b/engine/load.go
index 12e66a86be..98aa025e3a 100644
--- a/engine/load.go
+++ b/engine/load.go
@@ -18,6 +18,7 @@ import (
 	"github.com/yaoapp/yao/i18n"
 	"github.com/yaoapp/yao/importer"
 	"github.com/yaoapp/yao/model"
+	"github.com/yaoapp/yao/pack"
 	"github.com/yaoapp/yao/plugin"
 	"github.com/yaoapp/yao/query"
 	"github.com/yaoapp/yao/runtime"
@@ -226,14 +227,14 @@ func loadApp(root string) error {
 	var app application.Application
 
 	if root == "bin:application.yaz" {
-		app, err = application.OpenFromYaz(root, &share.Pack{}) // Load app from Bin
+		app, err = application.OpenFromYaz(root, pack.Cipher) // Load app from Bin
 		if err != nil {
 			return err
 		}
 		application.Load(app)
 
 	} else if strings.HasSuffix(root, ".yaz") {
-		app, err = application.OpenFromYaz(root, &share.Pack{}) // Load app from .yaz file
+		app, err = application.OpenFromYaz(root, pack.Cipher) // Load app from .yaz file
 		if err != nil {
 			return err
 		}
diff --git a/engine/load_test.go b/engine/load_test.go
index d9c71f229a..1675cf2f25 100644
--- a/engine/load_test.go
+++ b/engine/load_test.go
@@ -8,7 +8,7 @@ import (
 	"github.com/yaoapp/gou/api"
 	"github.com/yaoapp/gou/application/yaz"
 	"github.com/yaoapp/yao/config"
-	"github.com/yaoapp/yao/share"
+	"github.com/yaoapp/yao/pack"
 )
 
 func TestLoad(t *testing.T) {
@@ -33,7 +33,7 @@ func TestLoadYaz(t *testing.T) {
 	defer Unload()
 
 	// package yaz
-	file, err := yaz.Pack(config.Conf.Root, &share.Pack{})
+	file, err := yaz.Pack(config.Conf.Root,pack.Cipher)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -54,7 +54,7 @@ func TestReoadYaz(t *testing.T) {
 	defer Unload()
 
 	// package yaz
-	file, err := yaz.Pack(config.Conf.Root, &share.Pack{})
+	file, err := yaz.Pack(config.Conf.Root, pack.Cipher)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/pack/pack.go b/pack/pack.go
new file mode 100644
index 0000000000..573892a1b6
--- /dev/null
+++ b/pack/pack.go
@@ -0,0 +1,32 @@
+package pack
+
+// ********************************************************************************
+// WARNING: DO NOT MODIFY THIS FILE. IT WILL BE REPLACED BY THE APPLICATION CODE.
+// *********************************************************************************
+
+import (
+	"io"
+
+	"github.com/yaoapp/gou/application/yaz/ciphers"
+)
+
+// Pack the yao app package
+type Pack struct{ aes ciphers.AES }
+
+// Cipher the cipher
+var Cipher *Pack
+
+// SetCipher set the cipher
+func SetCipher(license string) {
+	Cipher = &Pack{aes: ciphers.NewAES([]byte(license))}
+}
+
+// Encrypt encrypt
+func (pack *Pack) Encrypt(reader io.Reader, writer io.Writer) error {
+	return pack.aes.Encrypt(reader, writer)
+}
+
+// Decrypt decrypt
+func (pack *Pack) Decrypt(reader io.Reader, writer io.Writer) error {
+	return pack.aes.Decrypt(reader, writer)
+}
diff --git a/share/pack.go b/share/pack.go
deleted file mode 100644
index b1bc5f67ea..0000000000
--- a/share/pack.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package share
-
-import "io"
-
-// ********************************************************************************
-// WARNING: DO NOT MODIFY THIS FILE. IT WILL BE REPLACED BY THE APPLICATION CODE.
-// *********************************************************************************
-
-// Pack the yao app package
-type Pack struct{}
-
-// Encrypt encrypt
-func (pkg *Pack) Encrypt(reader io.Reader, writer io.Writer) error {
-	_, err := io.Copy(writer, reader)
-	return err
-}
-
-// Decrypt decrypt
-func (pkg *Pack) Decrypt(reader io.Reader, writer io.Writer) error {
-	_, err := io.Copy(writer, reader)
-	return err
-}
diff --git a/test/utils.go b/test/utils.go
index 3c3430cfdd..2a8abcfb04 100644
--- a/test/utils.go
+++ b/test/utils.go
@@ -21,6 +21,7 @@ import (
 	"github.com/yaoapp/yao/config"
 	"github.com/yaoapp/yao/fs"
 	"github.com/yaoapp/yao/helper"
+	"github.com/yaoapp/yao/pack"
 	"github.com/yaoapp/yao/runtime"
 	"github.com/yaoapp/yao/share"
 )
@@ -34,7 +35,7 @@ func Prepare(t *testing.T, cfg config.Config) {
 	var err error
 
 	if root == "bin:application.pkg" {
-		app, err = application.OpenFromBin(root, &share.Pack{}) // Load app from Bin
+		app, err = application.OpenFromBin(root, pack.Cipher) // Load app from Bin
 		if err != nil {
 			t.Fatal(err)
 		}