diff --git a/sign.go b/sign.go
new file mode 100644
index 0000000..4e528c0
--- /dev/null
+++ b/sign.go
@@ -0,0 +1,37 @@
+package taskrpc
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"strings"
+)
+
+/**
+ * 签名
+ */
+func Sign(data string, salt string) string {
+
+	var build strings.Builder
+
+	build.WriteString(data)
+	build.WriteString(salt)
+	build.WriteString("ta334signsk98")
+
+	data_str := build.String()
+
+	h := md5.New()
+	h.Write([]byte(data_str))             // 需要加密的字符串
+	return hex.EncodeToString(h.Sum(nil)) // 输出加密结果
+
+}
+
+/**
+ * 验证签名
+ */
+func CheckSign(sign_str, data, salt string) bool {
+	sign := Sign(data, salt)
+	if strings.Compare(sign_str, sign) > -1 {
+		return true
+	}
+	return false
+}