feat: add HmacSha1

crypto/gsha1/sha1.go

@@ -8,6 +8,7 @@
 package gsha1
 
 import (
+	"crypto/hmac"
 	"crypto/sha1"
 	"encoding/hex"
 	"io"
@@ -45,3 +46,10 @@ func MustEncryptFile(path string) string {
 	}
 	return result
 }
+
+// hmac sha1
+func HmacSha1(in, key []byte) []byte {
+	h := hmac.New(sha1.New, key)
+	h.Write(in)
+	return h.Sum(nil)
+}