diff --git a/utils/crypto.go b/lib/routecrypto/rsa.go
similarity index 96%
rename from utils/crypto.go
rename to lib/routecrypto/rsa.go
index 0d26e82..6be721a 100644
--- a/utils/crypto.go
+++ b/lib/routecrypto/rsa.go
@@ -1,4 +1,4 @@
-package utils
+package routecrypto
 
 import (
 	"crypto/rsa"