!1 Merge back to master

Merge pull request !1 from dev branch

server/libs/encrypt/token_encrypter.go

@@ -0,0 +1,11 @@
+package encrypt
+
+type EncrypterMaker func(string) TokenEncrypter
+
+// TODO: name should be Encrypter?
+type TokenEncrypter interface {
+	Add(string, string) bool
+	FromStr(string) bool
+	Get(string) (string, bool)
+	ToStr() (string, bool)
+}