diff --git a/utils/str.go b/utils/str.go
index b27a421..760365a 100644
--- a/utils/str.go
+++ b/utils/str.go
@@ -4,11 +4,24 @@ import (
 	"crypto/hmac"
 	"crypto/md5"
 	"crypto/sha1"
+	"encoding/base64"
 	"encoding/hex"
 	"fmt"
 	"io"
 )
 
+func B64encode(content string) string {
+	return base64.StdEncoding.EncodeToString([]byte(content))
+}
+
+func B64decode(content string) (string, error) {
+	data, err := base64.StdEncoding.DecodeString(content)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
 func Sha1(content string) string {
 	h := sha1.New()
 	h.Write([]byte(content))