From f78900130bd22c66b3302bc0379f6aea57d676ad Mon Sep 17 00:00:00 2001
From: Evan Chen <evanchen@kumoly.io>
Date: Wed, 17 Nov 2021 09:50:25 +0800
Subject: [PATCH] feat: add default key

---
 xorencrypt.go      | 8 ++++++++
 xorencrypt_test.go | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/xorencrypt.go b/xorencrypt.go
index a2fed56..fee216e 100644
--- a/xorencrypt.go
+++ b/xorencrypt.go
@@ -2,7 +2,12 @@ package xorencrypt
 
 import "encoding/base64"
 
+var DEFAULT_KEY = "kumoly.io/lib/xorencrypt"
+
 func Decrypt(msg, key string) (string, error) {
+	if key == "" {
+		key = DEFAULT_KEY
+	}
 	deb64, err := base64.StdEncoding.DecodeString(msg)
 	if err != nil {
 		return "", err
@@ -12,6 +17,9 @@ func Decrypt(msg, key string) (string, error) {
 }
 
 func Encrypt(msg, key string) string {
+	if key == "" {
+		key = DEFAULT_KEY
+	}
 	enc := xor([]byte(msg), []byte(key))
 	return base64.StdEncoding.EncodeToString(enc)
 }
diff --git a/xorencrypt_test.go b/xorencrypt_test.go
index 49b6ae1..149fa8e 100644
--- a/xorencrypt_test.go
+++ b/xorencrypt_test.go
@@ -22,4 +22,8 @@ func TestEncrypt(t *testing.T) {
 
 	decErr, _ := Decrypt(enc, "wrongKey")
 	fmt.Printf("%s -> %s -> %s\n", msg, enc, decErr)
+
+	encD := Encrypt(msg, "")
+	decD, _ := Decrypt(encD, "")
+	fmt.Printf("%s -> %s -> %s\n", msg, encD, decD)
 }