diff --git a/sysutils.go b/sysutils.go
index 13932fa..8e9e988 100644
--- a/sysutils.go
+++ b/sysutils.go
@@ -10,6 +10,7 @@ import (
 	"reflect"
 	"time"
 	"runtime"
+	"hash/crc32"
 )
 
 func GetDaySeconds(seconds int64, timeZone int64) int64 {
@@ -258,6 +259,16 @@ func GetCallStack() string {
 	return string(buf)
 }
 
+func CalcCrc32(data string) uint32 {
+	tbl := crc32.MakeTable(crc32.Castagnoli)
+	c := crc32.New(tbl)
+
+	if _, err := c.Write([]byte(data)); err != nil {
+	}
+
+	return c.Sum32()
+}
+
 func IsDebug() bool {
 	return true
 }